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FICON_AdminGd_v700[1].

1. 00 5 30 FICON CUP Fabric OS commands 0 00200 eee ee 30 Configuring FICON CUP ccc cee ee nnn 31 Configuring FICON CUP in Virtual Fabrics 00 32 Determining physical port assignment 02000 eee 33 FMS mode and FICON CUP ssselssesseeeeeeelereee 34 Displaying FMS mode 000 cece eee 35 Enabling FMS mode 0 0 0 eee eee eee 35 Disabling FMS mode 0 0 cece eee 35 Setting up FICON CUP if FMS mode is enabled 35 FMS mode and FICON OxFE or OxFF addresses 36 Upgrade considerations 0 00 c eee eee eee 36 Mode register bit settings llle 3T FICON file access facility 0 cece eee eee 38 Setting the mode register bits 00000 e eee 39 Setting the MIHPTO value 0 0c eee ees 40 Persistently enabling and disabling ports for CUP 40 Chapter 4 Administering FICON Extension Services In this chapter d ew Re oet y ect ot RR net sette n 43 iv FICON Aaministrator s Guide 58 1002154 01 FICON Administrator s Guide 53 1002154 01 FICON emulation overview llle nne IBM z OS Global Mirror emulation 00 000 eee Tape emulation osc svete Ee x x ER TES Teradata emulation 0000 eee eee Platforms supporting FICON extension over IP FCIP configuration requirements for FICON extension Configuration requirements for swit
2. Zoning operation parameters No RSCN transmission mode No Arbitrated Loop parameters No System services FICON Administrator s Guide 53 1002154 01 No 19 20 2 10 11 12 13 14 15 16 1T 18 Configuring switched point to point FICON TABLE 2 FICON switch parameters Continued Parameter Response Comment Portlog events enable No SSL attributes No RPCD attributes No cfgload attributes No Web Tools attributes No System No Enter the switchEnable command to set the switch online Enter the trackChangesSet command to enable or disable the track changes feature and to configure the SNMP TRAP mode Enter the fabricPrincipal command on the switch you want to be the principal switch In cascaded fabrics only one switch should be the principal In core edge designs the director class switch should be the principle Enter the portCfgSpeed command to configure port speeds By default all ports are configured to auto negotiate Normally the only time the port configuration is changed is when connecting to 1 Gbps ports Some DWDM ports are known not to auto negotiate well Furthermore although older 1 Gbps FICON channels log in correctly they will generate errors so the speed should be forced to 1 Gbps with 1 Gbps FICON channels NOTE 8 Gbps ports will not auto negotiate to 1 Gbps and cannot be configured for 1 Gbps Enter the portCfgLongDistance command for
3. 4 T 4 4 t 0x1017DC00 24B100B20E11092B H 0x00 0000 000F 0000 0230 47184 213 25636 16063 0x104B4C00 24B100B20E1109F7 H 0x00 0000 000F 0000 01E0 3961 146 41409 26313 0x104B5000 24B100B20E1109F8 H 0x00 0000 000F 0000 1112 3855 148 41613 27182 0x104B5800 24B100B20E1109F9 H 0x00 0000 000F 0000 1493 4365 153 36604 20090 0x104B6000 24B100B20E1109FD H 0x00 0000 000F 0000 1422 3983 144 40358 24305 0x103B7C00 24B102B20F11092B H 0x00 0000 000F 0000 0F52 46658 212 25910 16283 0x104B4400 24B102B20F1109F7 H 0x00 0000 000F 0000 0C42 4159 147 39379 23225 0x104B4800 24B102B20F1109F8 H 0x00 0000 000F 0000 1112 4038 147 41523 26894 0x104B5400 24B102B20F1109F9 H 0x00 0000 000F 0000 05E8 4185 155 38116 22943 0x104B5C00 24B102B20F1109FD H 0x00 0000 000F 0000 07E2 3755 143 40929 24885 4R 4 4 q 4 4 4R 4 T 4 4 t 54 FICON Aaministrator s Guide 58 1002154 01 Displaying FICON emulation performance statistics 4 IBM z OS Global Mirror emulation formerly eXtended Remote Copy or XRC and Tape statistics are presented differently in output formats The following elements are common to both Tape Emulation and IBM z OS Global Mirror Emulation outputs FDCB ptr A pointer to the FICON Device Control Block Support personnel may use this pointer Path The device path in the format VE HD HP DD DP LP CU DV where e VE is the internal
4. Repeat the previous element for example member member Fixed values following arguments are printed in plain font For example show WWN Boolean Elements are exclusive Example show mode egress ingress ix Command examples This guide describes how to perform configuration tasks using the Fabric OS command line interface but does not describe the commands in detail For complete descriptions of all Fabric OS commands including syntax operand descriptions and sample output see the Fabric OS Command Reference Notes cautions and warnings The following notices and statements are used in this manual They are listed below in order of increasing severity of potential hazards NOTE A note provides a tip guidance or advice emphasizes important information or provides a reference to related information ATTENTION An Attention statement indicates potential damage to hardware or data A CAUTION A A Caution statement alerts you to situations that can be potentially hazardous to you DANGER A Danger statement indicates conditions or situations that can be potentially lethal or extremely hazardous to you Safety labels are also attached directly to products to warn of these conditions or situations Key terms For definitions specific to Brocade and Fibre Channel see the technical glossaries on MyBrocade See Brocade resources for instructions on accessing MyBrocade For definitions
5. TI Zones are used to direct traffic across links through a specified path Enhanced TI Zones allow you to have ports in more than one TI Zone and to program domain controller routes to destination domains for F class traffic ensuring fabric stability Brocade management tools provide further support Brocade Network Advisor BNA Brocade Network Advisor is an optional software program that can be used to manage a fabric that supports FICON and FCP devices and traffic This is the recommended GUI management tool for FICON environments on B series enterprise class switches For more information on Brocade Network Advisor refer to the manual appropriate for your version requirements Brocade Network Advisor SAN IP User Manual Brocade Network Advisor SAN User Manual Fabric OS MIB Reference The MIB reference provides information and procedures on setting up the SNMP agent and FICON Management Information Base MIB on your switch Web Tools Web Tools is an embedded GUI management tool that can be used to manage a director switch that supports FICON and Fibre Channel Protocol FCP devices and traffic For more information on Web Tools refer to the Web Tools Administrator s Guide NOTE Some licenses are installed and activated on the switch at the factory Use a Brocade management interface to verify that the required licenses are installed and activated on the switch FICON Administrator s Guide 53 1002154 01 FICON Administ
6. 58864 Ratio of RRS Read Bytes to the Requested Read bytes 0 read 1000 requested Tape Write Emulation Statistical Counts decimal Current Bytes in write pipe 1015560 Maximum Bytes in write pipe 26864400 Largest write chain processed 4128769 Total number of emulated Write Bytes 14053917200357 Number of emulated Write Chains 103735831 Total number of emulated Write CCWs 376828157 Average Emulated Writes Blocksize 37295 Average Writes in Emulated Chains 3 Write emulation slowdowns 3233062 Slowdowns at Start of Chain 1672232 Slowdowns at End of chain 1560830 Current Host side Write FDCB Count 16 Max Concurrent Write FDCB Count 24 Current Write Limited FDCB Count 16 Tape Read Emulation Statistical Counts decimal Total number of emulated Read Bytes 13624542616969 Total number of emulated Read Chains 96462808 Total number of emulated Read CCWs 352663119 Average Emulated Bytes per chain 141241 Average Emulated Read Blocksize 38633 Average CCWs in Emulated Chains 3 Current Read FDCBs Count 8 Max Concurrent Read FDCB Count 24 56 FICON Administrator s Guide 53 1002154 01 Displaying FICON emulation performance statistics Current Read Limited FDCB Count Tera Write Emulation Statistical Counts decimal Current Bytes in write pipe Maximum Bytes in write pipe Largest write chain processed Total number of emulated Write Bytes 1920 Number of emulated Write Chains Total number of em
7. Introducing FICON provides basic FICON concepts e Chapter 2 Administering FICON Fabrics allows you to set up and get started using FICON quickly if you are already familiar with FICON concepts and basic procedures e Chapter 3 Configuring FICON CUP provides basic conceptual information on FICON CUP and instructions on how to set CUP up in your FICON environment e Chapter 4 Administering FICON Extension Services provides basic conceptual information on emulation products and how to set them up in a FICON environment e Chapter 5 Maintaining and Troubleshooting FICON discusses maintaining your switch in a FICON environment provides symptoms troubleshooting tips and possible solutions to known issues e Appendix A Configuration Information Record provides a form to record your FICON configuration information e Appendix B EBCDIC Code Page provides a table of the EBCDIC Code Page 37 FICON Administrator s Guide vii 53 1002154 01 Supported hardware and software In those instances in which procedures or parts of procedures documented here apply to some switches but not to others this guide identifies exactly which switches are supported and which are not Although many different software and hardware configurations are tested and supported by Brocade Communications Systems Inc for Fabric OS v7 0 documenting all possible configurations and scenarios is beyond the scope of this document The followin
8. Although domain index zoning is supported WWN zoning for QoS is recommended in environments where NPIV is deployed For more information on how to implement QoS domain index zoning in your fabric refer to the Fabric OS Administrator s Guide When zoning changes occur Registered State Change Notification RSCN messages are sent out throughout the zone RSCNs are part of the low level Fibre Channel protocol that alerts channels and devices to changes in the fabric Using multiple smaller zones instead of one large zone helps alleviate the need for channels and device interfaces to process RSCNs that are not relevant 8 FICON Administrator s Guide 53 1002154 01 FICON Administrator s Guide 53 1002154 01 Access control in FICON 1 Cascaded zoning Figure 6 illustrates multiple sites sharing the same disaster recovery site Each director at a remote site labeled Director 1 and Director 3 can pass traffic to Director 2 but no traffic is permitted between Zone A and Zone B Director 1 Director 3 FIGURE 6 Simple cascaded zoning Figure 7 illustrates the multiple zoning concepts that can be used to restrict traffic In Figure 7 any host channel at the Backup Site connected to Director 11 or Director 12 can connect to the backup tape contained within the same zone Notice that no more than a single hop is ever allowed and only Channel Path Identifiers CHPIDs 79 and 7A on the Primary Site can connect to the backup tape Fur
9. The Query for Security Attributes QSA response to the channel indicates that the fabric binding and IDID are enabled FICON and FICON CUP in Virtual Fabrics 22 For FICON CUP FICON Management Server FMS mode is enabled on the logical switch and not the chassis For example in a Virtual Fabrics environment on the Brocade 5100 switch and the Brocade DCX and DCX 4S one would set CUP on each logical switch currently limited to four logical switches per chassis There are two different addressing modes to provide extended functionality in dynamically created partitions e Flat or 10 bit addressing mode e 256 area addressing mode Flat addressing mode Flat or 10 bit addressing mode is the default mode for all logical switches created in the Brocade DCX and DCX 4S enterprise class platforms This allocates 10 bit areas by default and is not supported in FICON environments 256 area addressing mode The 256 area limit mode allows the partition to be configured for 8 bit addressing rather than the default 10 bit addressing Each port in this partition is given a unique area represented by the middle 8 bits of the PID Because flat addressing mode allocates 10 bit areas by default 256 area addressing mode is used to support FICON in dynamically created partitions Use the fabric parameters of the configure command to enable the 256 area addressing mode There are three options for the 256 area addressing mode as follows e Mode
10. and detailed instructions Addresses OxFE and OxFF are not available for external connections Note that in logical switches or in cases where port address binding or port swapping has occurred addresses OxFE and OxFF are not necessarily tied to specific physical ports such as 254 and 255 After FMS mode has been successfully enabled these two ports remain disabled and cannot be used either as an F Port or an E Port Because these ports are not available after enabling FMS mode you should first move any fiber connected to either of them to another free port You must manually disable ports associated with OxFE and OxFF to enable FMS mode only if there is an active device connected to these ports Otherwise the Fabric OS will disable them automatically when FMS is enabled On a Brocade DCX and DCX 4S Backbones when Virtual Fabrics is not enabled or zero based addressing is not used you must disable physical ports associated with addresses OxFE and OxFF if ports were assigned by default before enabling FMS mode Note that physical ports associated with OxFE and OxFF may be different in logical switches using zero based addressing Disable these addresses manually if there is an active device attached If an active device is not attached to the ports they will disable automatically when you enable FMS mode NOTE You can only disable ports if there is a card present in the slot If FMS mode is enabled in a logical switch with port based a
11. data sheets and other documentation is available through the Brocade Partner website For additional resource information visit the Technical Committee T11 website This website provides interface standards for high performance and mass storage applications for Fibre Channel storage management and other applications http www t11 0rg For information about the Fibre Channel industry visit the Fibre Channel Industry Association website http www fibrechannel org FICON Administrator s Guide xi 53 1002154 01 Getting technical help Contact your switch support supplier for hardware firmware and software support including product repairs and part ordering To expedite your call have the following information available 1 xii General Information e Switch model e Switch operating system version Error numbers and messages received supportSave command output e Detailed description of the problem including the switch or fabric behavior immediately following the problem and specific questions e Description of any troubleshooting steps already performed and the results e Serial console and Telnet session logs e syslog message logs Switch Serial Number The switch serial number and corresponding bar code are provided on the serial number label as illustrated below TINI A FTOOXOO54E9 The serial number label is located as follows e Brocade 300 5100 5300 7800 8000 VA 40FC 6510 and Brocade Encr
12. specified Following are examples for enabling IBM z OS Global Mirror emulation formerly XRC emulation Teradata emulation and tape read and write pipelining portcfg fciptunnel 23 modify ficon xrc 1 portcfg fciptunnel 23 modify ficon tera read 1 1 ficon tera write 1 portcfg fciptunnel 23 modify ficon tape write 1 ficon tape read 1 Displaying FICON emulation configuration values Display FICON emulation configuration values using examples in this section FR4 18i blade For a Brocade FR4 18i blade you can display the values configured for FICON emulation by using the portShow ficon command The following example shows FICON emulation configuration values for port ge1 switch admin portshow ficon gel all Port gel VE STATUS TunnellId vePort vePortStatus veFeatureBitMap veHashEntryCount 0 24 UP 1 2 1 ff DOW 0 0 2 ff DOW 0 0 3 LE DOW 0 0 4 ff DOW 0 0 5 ff DOW 0 0 6 Ef DOW 0 0 7 ff DOW 0 0 FEATURES TunnelId XRC TapeWrt TapeRd TinTir DvcLack RdBlkId 0 ON ON O ON ON OFF 1 OFF OFF OFF OFF OFF OFF 2 OFF OFF OFF OFF OFF OFF 3 OFF OFF OFF OFF OFF OFF 4 OFF OFF OFF OFF OFF OFF FICON Administrator s Guide 51 58 1002154 01 4 52 Configuring FICON emulation OFF OFF OFF 3000000 0000000 0000000 0000000 0000000 0000000 0000000 9 OFF OFF OFF OFF OFF 6 OFF OFF OFF OFF OFF 7 OFF OFF OFF OFF OFF PARAMETERS TunnelId WrtPipe RdPipe WrtDevs RdDevs WrtTimer WrtChain
13. 0 032 032 16 16 0300 1 000 000 00 00 0000 2 000 000 00 00 0000 3 000 000 00 00 0000 4 000 000 00 00 0000 5 000 000 00 00 0000 6 000 000 00 00 0000 7 000 000 00 00 0000 7800 switch and FX8 24 blade 0000000 OxidBase 0x7000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 0x0000 DebugFlags Oxffc80000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 For a Brocade 7800 and FX8 24 blade use the portShow fciptunnel command to determine the FICON emulation settings The following example show the FICON emulation settings for VE Port 16 portshow fciptunnel 23 Tunnel ID 23 Tunnel Description Admin Status Enabled Oper Status Up Compression On Fastwrite Off Tape Acceleration Off TPerf Option Off IPSec Disabled QoS Percentages High 50 Remote WWN Not Configured Aggressive Local WWN 10 00 00 05 1e 55 6a 45 Peer WWN 10 00 00 05 1e 55 66 45 Circuit Count 4 Flags 0x00000000 FICON On FICON XRC On ICON Tape Write On CON Tape Read On ICON TinTir Emul On ICON Dvc Acking On CON Read BLK ID Off ICON Teradata Write On CON Teradata Read On Tape Write Pipe 32 Tape Read Pipe 32 Tape Write Devs 16 Tape Read Devs 16 Tape Write Timer 300 Tape Max Chain 3200000 FICON OXID Base 0x8000 FICON Debug Flags nj ron ocu ogg ocn nj Med 30 0xf7898030 Low 20 FICON Administrator s Guide 58 1002154 01 Modifying FICON emulation 4 Modif
14. 00 60 69 80 45 7c Type number Model number Manufacturer Plant of Manufacture Sequence Number tag The Local RLIR database FICON Administrator s Guide 58 1002154 01 rlir Incident Count TS Format Time Stamp 1 Time server Thu Apr 22 09 13 32 2004 Link not operational Registered Node WWN Flag 0x10 002064 103 IBM 02 0000000169CA 155d Switch Node WWN Flag 0x00 SLKWRM 24K BRD CA 000000000078 785d has l entry Loss of signal or synchronization Node Parameters 0x200115 Node Parameters 0x200a5d 71 5 FICON information Registered listeners To display registered listeners for link incidents connect to the switch log in as user and enter one of the following commands e For the local switch ficonShow lirr e For all switches defined in the fabric ficonShow lirr fabric Example of LIRR output switch 4 FID4 admin ficonshow lirr Fmt Type PID Listener Port WWN Switch Port WWN Listener Type 0x18 N c10100 50 05 07 64 01 01 20 01 00 05 1e 57 da 5b Conditional C 0x18 N c10200 50 05 07 64 01 02 20 02 00 05 1e 57 da 5b Conditional S 0x18 N c10300 50 05 07 64 01 03 20 03 00 05 1e 57 da 5b Conditional The Local LIRR database has 3 entries Current LIRR device port number XX When you configure an LIRR entry and it is current it is marked with C If the Management Server marks an entry as current based on order it is marked with c If the M
15. 0072 153 007A 169 00BE i85 0048 201 0052 Zr 005A 233 0038 249 A B c D E RET vr FF CR so sI 000B oooc 000D 000E 000F 10 11 12 13 14 15 UBS cui IFS Ics IRS IUS ITB ooic 001D 001E 0001F 26 27 28 29 30 31 8M Sw cse MFA ENQ ACK BEL 0005 0006 0007 42 43 44 45 46 47 RFF cua Dc4 NAK SUB 0014 0015 001A 58 59 60 61 62 63 s lt 00A2 002E oo3c 0028 002B oo7c 74 75 76 77 78 79 5 0021 0024 002A 0029 003B ooac 90 91 92 93 94 95 l s _ gt 00A oo2zc 0025 00SF 003E 0003F 106 107 108 109 110 111 z 003A 0023 0040 0027 003D 0022 122 123 124 125 126 127 y b 00AB 00BB o0F0 OOFD OOFE 0081 138 139 140 141 142 143 a o H 00AA 00BA o0E 00B8 ooce 00A4 154 155 156 157 158 159 i b e 00A1 00BF o0DO 00DD 00DE O0AE 170 171 172 173 174 175 Sahat ba 005B 005D 00AF 00A8 00B4 00D7 186 187 188 189 190 191 suy 6 00AD 00F4 oor 00F2 oora oors 202 203 204 205 206 207 1 a y 0089 OOrFB oorc oors O0FA OOFr 218 219 220 221 222 223 2 6 6 0 6 6 0082 D0D4 00DE 00D2 00D3 oops 234 235 236 237 238 239 3 0 zo 0083 00DB oo0DC oops ooDA 250 251 252 253 254 255 85 86 B EBCDIC Code Page FICON Administrator s Guide 53 1002154 01 Index A address mode changing 24 addressing modes 22 B binding 11 C cascade mode topology checklist 80 cascaded configuration 7 clearing the management da
16. 03 29 45 DISPLAY M 021 CHPID 60 TYPE 1D DESC FICON INCOMPLETE ONLINE DEVICE STATUS FOR CHANNEL PATH 60 0 1 2 3 4 5 6 7 8 9 A B C DEF 006 e lU Ba Mond SWITCH DEVICE NUMBER NONE ATTACHED ND NOT KNOWN PHYSICAL CHANNEL ID O1F0 ck ck ck ck KKK Ck C Ck Sk Ck kx x KKK KK SYMBOL EXPI ONLINE PATH NOT VALIDATED OFF FICON Administrator s Guide 53 1002154 01 LANATIONS Ck ck ck ck Ck Ck Ck Ck CC Sk Ck ke x kx kx X ko LINE DOES NOT EXIST 77 5 Common FICON issues Symptom Symptom Symptom PHYSICALLY ONLINE PATH NOT OPERATIONAL The responses NOT ALL PATHS BROUGHT ONLINE after attempting to configure the CHPID online and FICON INCOMPLETE after the display command indicate that the channel did not come online This is determined because the IEE error types are shown and combined with validating that there was no attempt to do a basic FLOGI no light displayed on the port view LED and no Fibre Channel frames were received The Control Unit Port cannot access the switch Probable cause and recommended action A 2 byte CHPID channel path identifier link is defined using a domain and port ID that must remain consistent Any change in the physical link such as a change in a domain or port ID will prevent storage control unit access Use the configure command to verify and set the insistent domain ID IDID parameter FICON admin gt configure Configure Fabric parameters yes
17. 55 56 EI E a E a a a 4 0020 00A0 O0EZ O0E4 00EO 00E1 00E3 O0ES 00E7 64 65 66 67 68 69 70 71 72 amp gt i i i i 5 002 o0ES OOEA 00EB 00E8 O0ED O0EE O0EF ooEc 80 81 82 83 84 85 86 87 88 A A A A A A C 6 002D 002F ooc2 oocs ooco 00ci coca oocs 00c7 96 97 98 99 100 101 102 103 104 i I it 7 oore oocs ooca oocs 00cs oocp o0cE oocr oocc 112 BEBE 114 115 116 EEG 118 119 120 a b c d e f g h 8 oope 0062 over 0063 0064 ooes ones 00 7 00 8 128 129 230 131 132 233 134 135 136 2 j k 1 m n o p q 9 0080 ooea oo0eB ooec 00 D 006E 00 F 0070 0071 144 145 146 147 148 149 150 151 152 u s t u v w X y A 0085 007E 0073 0074 0075 0076 0077 0078 0079 160 161 162 163 164 165 166 167 168 a Y s A A B o0sE 00A3 00A5 0087 ooas 00A7 005 00BC 008D 176 177 178 179 i180 181 182 183 184 A B c D E F G H c 0078 0041 0042 0043 0044 0045 004 0047 0048 192 SS EN 195 196 197 198 199 200 SETS L M N o P Q D 007D oosa 0045 004C oosD 004E oo4r 0050 0051 208 209 210 edd 212 ZI IE 215 216 S T e V wW X Y E oosc 00F7 0053 oosa 0055 005 0057 0058 0059 224 225 226 227 228 229 230 231 232 e 1 2 3 4 5 6 7 8 F 0030 0031 0032 0033 0034 0035 003 0037 0038 240 241 242 243 244 245 246 247 248 FICON Administrator s Guide 53 1002154 01 SPs 0019 25 SFE 41 IT 57 o0F1 73 00DF 89 00D1 105 0060 121 0069 137
18. DCX Extension blade For more information on blade swapping refer to the Fabric OS Administrator s Guide FICON Administrator s Guide 75 53 1002154 01 5 Common FICON issues Common FICON issues Symptom Symptom Symptom 76 Any information you need to verify that FICON has been set up correctly can be found in the Chapter 2 Administering FICON Fabrics or Chapter 3 Configuring FICON CUP on Cascading No path Entry Link is Probable cause and recommended action This typically occurs when one or more of the required high integrity features for cascading have not been met Check the following Review each step in Configuring switched point to point FICON on page 18 and Configuring cascaded FICON on page 21 and validate that all features are configured properly e Validate with the data center s system programmer that CUP is online for each director or switch in the fabric Path to a device does not come online Probable cause and recommended action Make sure binding or zoning does not prevent the connection Validate the following with the data center s system programmer e Correct switch addresses not switch IDs are used in Link statements Remember that the switch address is the domain ID converted to hex and may have an offset e The Switch ID used in the CHPID statements was defined with the correct switch address e All addressing LINK statements uses 2 byte addressing on the cha
19. FICON FCIP Tunnel 0 Statistics Emulation Common Statistical Counts decimal TotallIngressFrames 25147833 TotalEgressFrames 42506209 TotalFCEgressFrames 3636219 TotalCmds 1817668 TotalEmulDvcLvlAcks 54 TotalEmulatedOps 1815454 FICON Administrator s Guide 55 58 1002154 01 4 Displaying FICON emulation performance statistics MaxRetryQueueDepth 0 MaxEgressQueueDepth 224 TotalCUBusyResponses 0 TotalCUEndResponses 0 TotalEmulatedCUBusys 0 TotalEmulCUEnd 0 TotalSelectiveResets 16 TotalChLinkBusy 7 TotalCancels 1 TotalAborts 1 TotalEmulErrors 0 TotalCuLinkBusy 0 TotalPurgePaths 0 Xport LRC CheckErrors 0 Generated Link Busys 0 Failed Generate Frame 0 WIRE Buffer Percentages LocalFree 95 LocalLow 95 PeerFree 95 PeerLow 95 XBAR Buffer Percentages LocalFree 98 LocalLow 98 PeerFree 98 PeerLow 98 FICON Configuration Status FICON Host side Paths 2 Device Side Paths 0 FICON LPARS Connected 6 Curr LCUs 10 Total Devices 25 Current Egress Q Count 52 RetryQCnt 0 Current Free Headers 63 HdrsInUse 0 Active Emulation Count 2 XRC Emulation Statistical Counts decimal Total XRC Overlapped Exchange count 344 Total Emulated RRS Chains 9440151 Total Emulated RRS Commands 9440151 Total Received RRS Bytes 377606040 Total XRC RRS Requests in Bytes 555685048464 Average RRS Request BlkSize 40 Average RRS Requests per Chain 1 Largest RRS Request Byte Count
20. FMS mode 36 P packets being dropped 76 persistently enabling disabling ports 40 port and switch naming standards 30 port swapping 74 Q QSA requirements 15 R recording configuration information 38 registered listeners 14 72 RLIR clearing the database 13 link incidents displaying 14 RNID node identification 14 88 S SCC policy 16 security policy create 21 security related commands 16 single switch configuration 17 switch preparation 17 switched point to point configuration 6 T tag field interpreting 71 Tape Pipelining 50 Teradata emulation 47 Teradata statistics 55 troubleshooting NPIV 82 U unable to vary online 78 X XRC 44 Z zoning and PDCM considerations 13 FICON Administrator s Guide 58 1002154 01
21. FMS mode is enabled and Virtual Fabrics mode is enabled the ports on a 48 port blade are supported in non default logical switches for both FICON open system device connectivity Address mode limitations apply For FICON CUP FMS mode is enabled on the logical switch and not the chassis For example in a Virtual Fabrics environment on the Brocade 5100 switch and the Brocade DCX and DCX 4S one would set FMS mode independently on each logical switch FMS mode is currently limited to four logical switches per chassis FICON Administrator s Guide 53 1002154 01 Determining physical port assignment 3 Each logical switch has its own configuration data such as the initial program load IPL file configuration data elements PDCM PIB Port Address Names Mode Register Key Counter and CUP configuration files Following is a summary of steps to create a logical switch using the Fabric OS commands You can find the complete instructions for creating a logical switch in the Fabric OS Administrator s Guide Connect to the switch and log in using an account assigned to the admin role Determine current logical switch configuration using the IsCfg show command Define the new logical switch using the IsCfg create command Enter the setContext command to set the context to the newly created logical switch Enter the configure command to configure the newly created logical switch Enter y at the Fabric Parameters prompt Assign a domain ID
22. VE Port number e HD isthe hex value for the Host Domain the entry domain for this host port into the fabric e HP is the hex value for the Host Port the entry port of this host connection into the fabric e DD is the hex value for the Device Domain the entry domain for this device into the fabric e DP is the hex value for the Device Port the entry port for this device connection into the fabric e Pisthe Logical Partition LPAR value for the host accessing the specific device e CU is the Control Unit number CUADDR for the specific FICON connection e DV isthe Device Number of this FICON connected device For example the value 2463016406050001 breaks down as follows VE HD HP DD DP LP CU DV 24 63 01 64 06 05 00 01 State A value of zero indicates emulation is idle Any non zero value indicates emulation is active FICON emulation statistics Use the portShow xtun slot ve port ficon stats options command to view statistics and monitor the behavior of FICON emulation on 7800 switches and FX8 24 blades You can use the following options for the three performance monitors for the emulation features teraperf xrcperf and tapeperf Refer to the Brocade Fabric OS Command Reference Manual for more information General statistics Use portshow xtun slotNjve port ficon stats to display general FICON emulation including Teradata XRC and tape emulation statistics on 7800 switches and FX8 24 blades
23. can use the following worksheet Table 6 for recording FICON configuration information TABLE 6 FICON configuration worksheet FICON Switch Configuration Worksheet FICON Switch Manufacturer HCD Defined Switch ID FICON Switch Domain ID FICON Switch F_Ports Slot Port Port Number Number Address Type Switch ID Switch Laser Port Name Type LX SX Model S N Cascaded Directors No Yes Corresponding Cascaded Switch Domain ID Fabric Name Attached N Ports E Ports CU CPC or ISL Node Type Machine Model Serial Number CU CHNL Type ISL CUI F CPC CHPID FICON Administrator s Guide 53 1002154 01 83 84 A Configuration Information Record FICON Administrator s Guide 53 1002154 01 EBCDIC Code Page Appendix Extended Binary Coded Decimal Interchange Code EBCDIC is an 8 bit character encoding code page used on IBM mainframe operating systems such as z OS and S 390 Code page 37 is an EBCDIC code page with full Latin 1 charset EBCDIC Code Page 00037 0 1 2 3 4 5 6 7 8 NUL sog STX ETX SEL HT RNL DEL GE 0 0000 0002 0002 0003 0009 007F 0 x 2 a 4 5 6 7 8 DLE Dci pez nca RES ENP NL BS FOC CAN 1 0010 0011 0012 0013 0085 0008 0018 16 17 18 19 20 21 22 23 24 ns sos rs ws BYP INP LF ETB ESC s a 000A 0017 0018 32 a 34 35 36 37 38 39 40 sw IR E TRN NBS EOT SBS 3 001 0004 48 49 50 51 52 53 54
24. disabled to enabled triggers the following events Access to switch configuration parameters is serialized e The active CUP configuration data including the following is initialized according to the IPL file Port and switch names Port Block and Unblock values PDCM values e Brocade Advanced Zoning if used continues to be in force If there are any differences between the port to port connectivity restrictions defined by Brocade Advanced Zoning and those defined by PDCMs the most restrictive rules are automatically applied e RSCNs are sent to devices if PDCM changes result in changes to connectivity between a set of ports that are zoned together e An RSCN for the CUP is generated to all mainframe FICON and FCP channels in the fabric Changing FMS mode from enabled to disabled triggers the following events e Adevice reset is performed on the control device FICON Administrator s Guide 53 1002154 01 FMS mode and FICON CUP 3 Prohibits are no longer enforced e RSCNs might be generated to some devices if PDCM removal results in changes to connectivity between a set of ports that are zoned together e Ifa given port was set to Block or Unblock that port remains disabled or enabled e The switch interface for host in band management is no longer enabled e An RSCN for the CUP is generated to all mainframe FICON and FCP channels in the fabric Displaying FMS mode The ficonCupShow fmsmode
25. is not high integrity the physical CHPID PCHID will go into an invalid attachment isolated state drop light which then requires you to recover using the CPU Hardware Management Console HMC To ensure the FICON Channel QSA requirements have been met be sure to configure the following features e nsistent domain ID e Fabric Wide Consistency Policy gt SCC S Strict mode FICON Administrator s Guide 15 53 1002154 01 2 User security considerations Enabling insistent domain ID To enable Insistent Domain ID follow these steps for each switch in the fabric 1 Connectto the switch and log in using an account assigned to the admin role 2 Enterthe configure command and step through the interactive prompts a Atthe Fabric parameters prompt type y b Atthe Insistent Domain ID Mode prompt type y Enabling the fabric wide consistency policy Enable the fabric wide consistency policy after all the switches have joined the merged fabric If there are fdd conflicts on any of the ISLs disable the fabric wide consistency policy on each switch in the fabric Once the fabric has merged successfully use fabricshow to verify then enter the following command fddcfg fabwideset SCC S Note that the S enforces strict mode which is required for FICON Using other security commands Following are some other security related commands that you might find useful Disabling fabric wide consistency policy To disable th
26. is required Cascaded topology checklist This checklist lists items you should perform in your FICON environment to ensure proper functionality of the feature Verify that your Brocade switch or directory have Fabric OS v6 1 0 or later release installed Verify that you are using an appropriate management tool such as EFCM v9 6x DCFM or Brocade Network Advisor Verify that no additional license is required to enable your FICON configuration Verify that your switch does not have a special mode setting turned on for FICON In addition to port based routing lossless and in order frame delivery IOD it is recommended that you enable the dynamic load sharing feature Verify that if you have a fabric for intermix mode of operations separate zones for FICON and FCP devices are set Verify the mainframe channel device connectivity rule of maximum one hop is applied to both FCP and FICON devices Verify the Insistent domain ID flag is set to keep the domain ID of a fabric switch persistent Verify the CHPID link path is defined using the 2 byte address format Verify FICON channel connectivity to storage CU port has not exceed one hop Verify that the security policies are enabled If not refer to Configuring cascaded FICON on page 21 FICON Administrator s Guide 53 1002154 01 Troubleshooting FICON CUP 5 ATTENTION The Switch Connection Control SCC security policy must be active Brocade Advanced features software pac
27. not recommended to have failover enabled for the following reasons e FICON Emulation will not occur on a failed over path e FICON devices are identified at one time during channel path activation ELP LPE exchange if the paths do not fail the MVS system will not re issue this sequence over the recovery path e Multiple error periods will be perceived at the connected LPARs first link failure movement of traffic to recovery path and then again when the primary path is restored There is no good way to perform a forced or controlled fallback Keep the following best practices in mind when using TI zoning e f Tl Zones are used to provide routes for Emulated traffic then TI Zone Fail over cannot be enabled e Keep the configurations as simple as possible this will make the systems more supportable e Include virtual E Ports in the Traffic Isolation zone FICON Administrator s Guide 49 53 1002154 01 4 Configuring FICON emulation Use TI zoning for route selection on a port to port basis Use port zoning to restrict data flows Look at TI zoning link costs and zoning definitions to understand the routing paths used in your data center Understand bandwidth requirements available network resources etc Collect information on all new installations or after network changes by running the portCmd ipPerf command Separate disaster recovery networks from production networks Configuring FICON emulation Be
28. or storage device the device connection control DCC policy binds those devices to a particular switch Policies range from completely restrictive to reasonably flexible based upon customer needs e SCC ACL with strict fabric wide consistency is necessary for FICON switch binding Port binding is a security method for restricting host or storage devices that connect to particular switch ports The DCC policy also binds device ports to switch ports Policies range from completely restrictive to reasonably flexible based on customer needs Figure 8 on page 12 demonstrates the three types of binding you can use depending on the security requirements of your fabric FICON Administrator s Guide 11 53 1002154 01 1 Access control in FICON Device 4 WWNN 4 Q FC Switch 7 WWNN 7 Domain ID 7 FIGURE 8 FC Switch 8 WWNN 8 Domain ID 8 Three types of binding FC Switch 9 WWNN 9 Domain ID 9 Device 5 WWNN 5 FICON Administrator s Guide 53 1002154 01 FICON commands NOTE FICON commands 1 The Fabric OS CLI supports only a subset of the Brocade management features for FICON fabrics The full set of FICON CUP administrative procedures is available using the Brocade Network Advisor and Web Tools software features You can also use an SNMP agent and the FICON Management Information Base MIB Table 1 summarizes the Fabric OS CLI commands that can be used for managing FICON fabrics For detailed information on
29. panre a nE KOPIEREN us 74 Bade SWBBBIBE cus mida E eG TRE ds E Rx Budokai eps pic Common FICON ISSUES saccos Ea GE EA OCRACIOR eave OR OCA UE C 76 e Troublesliopting FICON ciscseeicr ier ee tise RCERar Ra E E Res RR ded 79 Troubleshooting PICON CUP Lucca use mk mark tai a sobre ok x Rc Ra 81 Troubleshooting NPIV 1asaaur qub E titri rE NE CREE RGRCROR OR ORDRE 82 Firmware management in a FICON environment You can use either the CLI or Brocade Network Advisor BNA to upgrade or downgrade your Fabric OS Go to http www brocade com and follow the link Brocade Connect Login to access firmware packages Registered users can log in and follow the links for downloads New users can easily register and download release notes Firmware is downloaded in a gz or zip file The Brocade Network Advisor has intelligence built in that unbundles the necessary files making it unnecessary to unbundle the package With both Web Tools or the CLI it will be necessary to unzip or ungunzip the package first For more information on the firmware download process refer to the Fabric OS Administrator s Guide Upgrade and downgrade considerations Concurrent upgrades are generally supported from one major release level to the next for example V6 4 x to v7 x As a precaution always read the appropriate section in the Brocade Fabric OS Release Notes before upgrading or downgrading firmware NOTE Firmware may need to be upgraded in multiple steps
30. ports with fiber connections exceeding 10 km For ports with fiber connections exceeding 10 km configuring the port for long distance mode increases the number of buffer to buffer BB credits available on that port If you have any Extended Fabrics links enable VC translation link initialization to stabilize them Refer to the Fabric OS Administrator s Guide for details on this option of the portCfgLongDistance command Enter the supportShowCfgEnable ficon command to turn on logging of FICON information Enter the defZone noaccess command to disable the default zone Configure zoning for your fabric Follow standard FCP zoning practices For more information on zoning refer to the administrator s guide for your management tool Enter the statsClear command to clear port statistics Enter the switchShow command to verify that the switch and devices are online Enter the ficonShow rnid command to verify that the FICON devices are registered with the switch Enter this command only if fabric binding is enabled otherwise channels will be attached as invalid FICON Administrator s Guide 53 1002154 01 19 20 21 22 Configuring cascaded FICON 2 Enter the ficonShow lirr command to verify that the FICON host channels are registered to listen for link incidents Enter this command only if fabric binding is enabled otherwise channels will be attached as invalid Refer to FICON commands on page 13 for details about us
31. read without the need for additional control unit generated acknowledgements called command responses There are times when there are no more buffer credits to pass back to the other end and a frame pacing delay occurs Frame pacing delay is the number of intervals of 2 5 microsecond duration that a frame had to wait to be transmitted due to a lack of available buffer credits 4 FICON Administrator s Guide 53 1002154 01 FICON Administrator s Guide 58 1002154 01 FICON concepts 1 FICON introduces the following concepts FICON Control Unit Port CUP The internal port in a switch that assumes an FC address such that it is the FC DID used to direct FICON traffic to the FICON Management Server FICON Manager Host communication includes control functions such as blocking and unblocking ports as well as monitoring and error reporting functions Hardware Configuration Definition HCD HCD is an IBM interactive interface application that allows you to define the hardware configuration for both the processor channel subsystem and the operating system running on the processor Information unit A unit of FICON data consisting of from one to four Fibre Channel frames Link Incident Record Registration LIRR The LIRR Extended Link Service ELS requests that the recipient add the requesting port to its list of ports that are to receive a Registered Link Incident Report RLIR Node A node is an endpoint that contains informatio
32. storage device DASD application that implements disk mirroring as supported by the disk hardware architecture and a host software component called System Data Mover SDM Within this application a specific application channel program invokes a well constrained type of channel program called a Read Record Set RRS channel program This channel program is used to read only updates to disk volumes record sets after they have been brought into synchronization with the aim of writing only record updates to a mirrored volume The RRS channel program accesses primary volumes from a remote host for the purpose of reading these record sets updates that is supported by IBM z OS Global Mirror emulation The emulation feature thus allows the primary volume to be located at a distance from its mirrored secondary without encountering performance degradation associated with a specific FICON facility called IU pacing FICON Administrator s Guide 53 1002154 01 FICON emulation overview 4 System z 4 y hosts IBM Z OS global mirror system data mover J Brocade extension switch with emulation for FICON Brocade Brocade FICON IP network FICON Directors Directors IP network Brocade extension switch with emulation for FICON Primary disk m w Secondary disk volumes V YK volumes FIGURE 10 IBM z OS Global Mirror emulation Figure 10 shows how the primary volume and the secondary mirrored volume may be geographically distan
33. the HA failover is automatically invoked 4 Once rebooted the primary code image is copied to the secondary Configuration restoration in a FICON environment 62 If the switch is operating in a FICON CUP environment and the ASM Active Saved bit is set on then the switch ignores the IPL file downloaded when you restore a configuration Table 5 describes this behavior in more detail TABLE 5 Backup and restore in a FICON CUP environment ASM bit Command Description on or off configUpload All the files saved in the file access facility are uploaded to the management workstation A section in the uploaded configuration file labeled FICON CUP is in an encoded format FICON Administrator s Guide 53 1002154 01 Traffic Isolation Zoning 5 TABLE 5 Backup and restore in a FICON CUP environment Continued ASM bit Command Description on configDownload Files saved on the switch that are also present in the FICON_CUP section of the configuration file are overwritten Files in the FICON section of the configuration file that are not currently present on the switch are saved The IPL file is replaced because active saved mode is on A warning message is displayed in the syslog to warn that the IPL file is not being overwritten off configDownload Files saved on the switch that are also present in the FICON CUP section of the configuration file are overwritten Files in the FICON section of the configuration file that are not curr
34. these commands see the Fabric OS Command Reference TABLE 1 Fabric OS commands related to FICON Command Standard Fabric OS commands Description bladeSwap Swaps the area numbers for matching port pairs of two blades configure Changes a variety of switch configuration settings including setting the domain ID and the insistent domain ID mode configUpload Backs up the current configuration firmwareShow Displays the current version of the firmware licenseAdd Adds a license to the switch The license key is case sensitive and must be entered exactly licenseRemove Removes a license from the switch Note that FMS mode must be disabled before removing the FICON license licenseShow Displays current license keys along with a list of licensed products enabled by these keys licenseSlotCfg add licenseSlotCfg show Enables slot based licenses for a switch chassis Note that for a Switch without blades such as the 7800 Extension Switch slot O is used as the slot based license target For blades slot numbers are based on the switch chassis numbering scheme A license key with the specified capacity must be installed with the licenseAdd command before you can enable a feature on a specified slot with this command Displays all slot based licenses in the chassis portAddress bind Binds the 16 bit address to the lower two bytes of a port 24 bit Fibre Channel address portAddress un
35. traffic on existing ISL ports might be affected when one or more new ISLs is added between the same two switches Specifically adding the new ISL might result in dropped frames as routes are adjusted to take advantage of the bandwidth provided By disabling DLS you ensure that there will be no dropped frames In a supportshow search for route stickyRoutes and check for a value of 1 or enter the dlsShow command 79 80 5 Troubleshooting FICON Verify that IOD is enabled using the iodSet command to ensure in order delivery In the output from the supportShow or supportSave search for the route delayReroute and check for a value of 1 as this indicates that the feature is turned on or enter the iodShow command Switched point to point topology checklist This checklists lists items you should perform in your FICON environment to ensure proper functionality of the feature Does your Brocade switch or director have Fabric OS v6 1 0 or later release installed Are you using an appropriate management tool such as EFCM v9 6x DCFM or Brocade Network Advisor Have you verified that no additional license is required to enable your FICON configuration Have you verified that your switch does not have a special mode setting turned on for FICON NOTE There is no requirement to have a secure fabric in a switched point to point topology Brocade Advanced features software package Trunking Fabric Watch Extended Fabric license activation
36. 226768 989882 989882 19400 114 0 114 0 0 8908128 825572 825572 21426 21426 1 PrPRPOoOO 0xf7c90000 Default SELRESET PURGEPATH RRS MISS LRJ UNIT CHECK LOOKUP FAIL FDCB_ABORT NOFDCB ABORT LINKDOWN SENSE CMD BUSYATTN XRCUNS ISPLAY FDCB ON ERROR LOW WIREPOOL READ UNITCHECK STATE SAVE SUSPEND ACCEPT READTRACK STATUS 0xf7c90000 57 4 Displaying FICON emulation performance statistics Bit 3 0x00000008 0 FORCE DISABLE READ PIPE Bit 2 0x00000004 0 FORCE_DISABLE_WRITE_PIPE Bit 1 0x00000002 0 FORCE_DISABLE_XRC_EMUL Bit 0 0x00000001 0 DISABLE PERSIST IU PACE Teradata emulation performance statistics Use portshow xtun lt veport gt ficon teraperf to display Teradata performance statistics on 7800 switches and FX8 24 blades as in the following example Tera Performance Monitor Data Sample Time Period in ms 4318 Tera Write Performance Data Emulated Chains per sec 1186 Emulated CCWs per sec 1186 Ave Write Block Size 22617 Emulated Write BPS 26831514 Tera Read Performance Data Emulated Chains per sec 1069 Emulated CCWs per sec 1069 Ave Read Block Size 10780 Emulated Read BPS 11531104 FICON tape emulation performance statistics Use portshow xtun lt veport gt ficon tapeperf to display FICON tape pipelining performance statistics on 7800 switches and FX8 24 blades as in the following example
37. 53 1002154 01 29 April 2011 FICON Administrator s Guide Supporting Fabric OS v7 0 0 BROCADE Copyright 2009 2011 Brocade Communications Systems Inc All Rights Reserved Brocade the B wing symbol Biglron DCFM DCX Fabric OS Fastlron IronView Netlron SAN Health Serverlron Turbolron and Wingspan are registered trademarks and Brocade Assurance Brocade NET Health Brocade One Extraordinary Networks MyBrocade VCS and VDX are trademarks of Brocade Communications Systems Inc in the United States and or in other countries Other brands products or service names mentioned are or may be trademarks or service marks of their respective owners Notice This document is for informational purposes only and does not set forth any warranty expressed or implied concerning any equipment equipment feature or service offered or to be offered by Brocade Brocade reserves the right to make changes to this document at any time without notice and assumes no responsibility for its use This informational document describes features that may not be currently available Contact a Brocade sales office for information on feature and product availability Export of technical data contained in this document may require an export license from the United States government The product described by this document may contain open source software covered by the GNU General Public License or other open source license agreements To find out
38. 60 0x1001C400 2463016406050002 H 0x18 0x20 000A 0000 13164 0 0 125758 32760 0x1001CC00 2463016406050003 H 0x14 0x20 0008 0000 13908 0 0 131716 32760 0x1002BC00 2463016407050000 H 0x14 0x20 0008 0000 10094 0 0 97917 32760 0x10027B00 2463016407050001 H 0x14 0x20 0011 0000 8915 0 0 85966 32760 0x1002C400 2463016407050002 H 0x14 0x20 0007 0000 10365 0 0 99742 32760 0x1002B000 2463016407050003 H 0x14 0x20 0008 0000 9993 0 0 96088 32760 0x1003F000 2463046401050100 H 0x00 N A 0000 0000 19392 0 0 183111 32760 0x1003E400 2463046401050101 H 0x00 N A 0000 0000 19342 0 0 183111 32760 0x10041800 2463046401050102 H 0x00 N A 0000 0000 19420 0 0 183111 32760 0x10040400 2463046401050103 H 0x00 N A 0000 0000 19450 0 0 183111 32760 0x10049800 2463046402050100 H 0x00 N A 0000 0000 19392 0 0 183111 32760 0x10045400 2463046402050101 H 0x00 N A 0000 0000 19436 0 0 183111 32760 0x10045000 2463046402050102 H 0x00 N A 0000 0000 19456 0 0 183111 32760 0x10048000 2463046402050103 H 0x00 N A 0000 0000 19404 0 0 183111 32760 4R 4 4 4 4 4 a XRC EMULATION STATS e pee eS 4 4 4 4 EDCB Ptr Path H State Cmds Cmd Data Data Emulated Avg RRS RRS 0x 0x D od Max Od Max RRS Ops RRS TLF Read doeueccnoet cqozsecceelc uc dieie e
39. 7 improves performance for certain applications when reading from FICON tape over extended distances FICON Tape Read Pipelining reads data on the tape directly from the tape device Reading of the tape continues until a threshold is reached The buffered data is forwarded to the host in response to requests from the host When the host sends the status accept frame indicating that the data was delivered the read processing on the device side credits the pipeline and requests more data from the tape If an exception status is received from the device the reading of data and emulation is terminated FICON Administrator s Guide 53 1002154 01 FICON emulation overview 4 System z Virtual Tape hosts Brocade Brocade Controller FICON extension blade extension switch Tape Director s with emulation with emulation Library for FICON for FICON IP network 3 S b n Read command Read emulation indication sent to remote Local host held off with command retry awaiting read data to be delivered Read command 0 89 0O Read channel programs are presented locally to the tape device Mi n Read data is streamed to host 1 1 1 I I I D 1 D I I I 1 D 1 I I I D 1 1 I I I 1 1 I I I I I I D Read commands are satisfied locally i I 1 D I Li i 1 1 1 1 1 l I I I Li Li 1 1 1 1 1 1 I I Li Li I I 1 1 1 Local response 1 1 1 l Li I I l Li 1 1 1 1 1 1 I I Li
40. CON FICON Administrator s Guide 53 1002154 01 Updated document for April 20114 Fabric OS version 7 0 0 Contents FICON Administrator s Guide 53 1002154 01 About This Document Chapter 1 In this chapter i455 sm iced cec a ps wae rec ce s vii How this document is organized 0 00 cee eee eee vii Supported hardware and software 0000 0c cece ences viii What s new in this document 0 000s viii Document conventions lille ix Text TOF kUDIE accipio rebos Bone er ia dr tein a cached ix Command syntax conventions s asss aaas auar eee eee ix Command examples 000 ccc eee eee X Notes cautions and warnings l l X MOAc t cm X Notice to the reader 1 cc eee re xi Additional information llle xi Brocade r SOUICES n eee ee eens xi Other industry resources 1 eee eee xi Getting technical help llle xii Document feedback 0 ccc eee eee xiii Introducing FICON I this chapter sso dose nia eats eats sae a tee maleate 1 FICON overview llle hm hh 1 Fabric OS support for FICON 2 0 eee 1 Platforms supporting FICON 0 0 0 e eee eee 3 Latency guideline 0 0 eee eee 3 Packet loss guideline erii masaa aceata a aai a aiaiai 3 Storage application guideline 00 ee eee eee 3 FICON CONCEDIS aree Rm Hed x aem dk n cR RR RC CERCA bee 4 FICON configurations lsseseseseeeee II
41. Command Description ficonCupset fmsmode Sets FICON Management Server mode on or off for the switch ficonCupset crp Sets the CUP Asynchronous Event Reporting Path ficonCupset MIHPTO Sets the Missing Interrupt Handler Primary Timeout value ficonCupset modereg Sets the mode register bits for the switch ficonCupShow Ip Displays the host logical path information for the CUP ficonCupShow MIHTPTO Displays the Missing Interrupt Handler Primary Timeout value FICON Administrator s Guide 53 1002154 01 Configuring FICON CUP 3 TABLE 3 Fabric OS commands related to FICON CUP Command Description ficonCupShow fmsmode Displays the FICON Management Server enabled disabled state for the Switch ficonCupShow modereg Displays the mode register bit settings for the switch Configuring FICON CUP To set up FICON CUP use the following procedure and be sure to perform the steps in the order indicated 1 2 FICON Administrator s Guide 53 1002154 01 Connect to the switch and log in using an account assigned to the admin role Verify that the switch or director has been set up according to the instructions in Configuring switched point to point FICON on page 18 and if in a cascaded topology Configuring cascaded FICON on page 21 For directors with at least 256 ports installed use the portDisable command to disable ports OxFE and OxFF Refer to Persistently enabling and disabling ports for CUP on page 40 for more information
42. Consult the Release Notes for details When downgrading firmware turn off and disable all features not supported in the final release For more information on the firmware download process refer to the Fabric OS Administrator s Guide FICON Administrator s Guide 61 53 1002154 01 5 Configuration restoration in a FICON environment Firmware upgrade disruption Loading new firmware is a non disruptive process except for the following During the firmware download process a failover to the backup processor occurs Any outstanding CUP commands are lost and result in a timeout To avoid this CUP should be varied offline before starting a firmware download The CUP may be varied back online after a successful firmware download e All firmware downloads will cause an I O disruption when the new code is activated on the FX8 24 blade and 7800 switch NOTE If upgrading multiple switches or blades upgrade one at a time This is not a requirement for DCX or DCX AS platforms Non disruptive firmware upload and download All systems maintain two partitions of nonvolatile storage areas a primary and a secondary Following is an overview of the firmware download process 1 The firmware is downloaded to the secondary partition 2 The current secondary and primary partitions are swapped 3 The CP then reboots In dual CP systems Brocade 48000 and Brocade DCX enterprise class platforms the backup CP is rebooted with the new firmware and
43. E CHPID 79 can talk only to the remote tape connected to ports 7 and 8 on Director 11 The zone includes port 4 of Director 1 and ports 7 and 8 of Director 11 Either ISL can be used Purple Zone F CHPID 7A can talk only to the remote tape connected to ports 7 and 8 on Director 12 The zone includes port 4 of Director 2 and ports 7 and 8 of Director 12 Either ISL can be used FICON Administrator s Guide 53 1002154 01 Access control in FICON 1 Error reporting Non implicit such as Network Operating System NOS recognized or bit error rate threshold exceeded and implicit FRU failure link incidents are reported to registered listeners on the local switch The RMF 74 7 record FICON Director Activity Report which is the same RMF Record containing the average frame pacing delay information reports port errors which in turn are also reported back to the mainframe host management consoles Secure access control Binding is a method used to prevent devices from attaching to the switch Secure Access Control List ACL provides the following fabric switch and port binding features Fabric binding is a security method for restricting switches within a multiple switch fabric Use an SCC policy to prevent unauthorized switches from joining a fabric e Switch binding is a security method for restricting devices that connect to a particular switch If the device is another switch this is handled by the SCC policy If the device is a host
44. LOT10 IOSOOOI 1061 A8 EQC 8200 MASTER 697 1000A00000000046700010000000000000000000000000000000000000007000 TRDOOOE 1061 002032 001 LEVEL 1 FRU S SLOT7 FRU numbers Following are the Brocade FRU numbers provided for error reports and associated FRU names that display in error reports Note that the FRU number does not actually display in the error reports but its associated FRU name does display e 1 SLOT1 e 2 SLOT2 e 3 SLOT3 e 4 SLOT4 e 5 SLOT5 6 SLOT6 7 SLOT7 e 8 SLOT8 FICON Administrator s Guide 73 53 1002154 01 5 Port swapping e 9 SLOT9 e 10 SLOT10 e 11 SLOT11 e 12 8SLOT12 e 17 PWR1 e 18 PWR2 e 19 PWR3 e 20 PWR4 e 24 FAN1 e 25 FAN2 e 26 FAN3 e 30 CHASSIS e 31 WWN CRD Port swapping If a port malfunctions or if you want to connect to different devices without having to re wire your infrastructure you can move a port s traffic to another port swap ports without changing the I O Configuration Data Set IOCDS on the mainframe computer 74 ATTENTION Ports that have been swapped cannot be moved to another logical switch NOTE Ports with area OxFE or OxFF addresses cannot be swapped when FMS mode is enabled Connect to the switch and log in using an account assigned to the admin role Enter the portSwapEnable command to enable the command for port swapping 1 2 3 Enter the portDisable command to disable the two ports to be swapped 4 Enter the portSwap co
45. Li I I 1 1 1 1 1 1 1 l I I 1 Li 1 1 1 1 FIGURE 12 Tape Read Pipelining FICON and ESCON conversion support The 7800 switch and FR4 18i blade can operate with Prizm FICON to ESCON converter and ESBT Bus Tag Interface Module for Prizm from Optica Technologies Inc This provides FICON tape emulation when connecting to ESCON and to bus and tag devices including 3480 3490 and 3590 controllers The discovery of these devices is automatic when FICON emulation is enabled on an FCIP tunnel Teradata emulation Teradata emulation reduces latency on links to Teradata warehouse systems caused by WAN propagation delays and bandwidth restrictions It accomplishes this by processing selected FICON commands for associated control data and status responses FICON Teradata Emulation is only supported between FICON Channels and FICON Teradata controllers For write commands control and status frames are generated for the host side of the WAN in order to pipeline write commands over the same or multiple exchanges Such pipelined write commands and their data are queued at the device side of the WAN for asynchronous transfer to the device For read operations received by the device side of the WAN a number of anticipatory read commands are autonomously generated and transferred to the device The data and status associated with such commands are sent to the host side of the WAN and queued in anticipation of host generated read commands FICON Emul
46. NATION CU LOGICAL ADDRESS 10 SCP CU ND 002107 921 IBM 07 000000002036 0086 SCP TOKEN NED 002107 900 IBM 07 000000002036 1000 SCP DEVICE NED 002107 900 IBM 07 000000002036 1000 FICON Administrator s Guide 63 53 1002154 01 5 64 Traffic Isolation Zoning Enhanced TI Zoning Enhanced Traffic Isolation Zones allow you to specify a preferred and exclusive path through a cascaded fabric for a particular flow by defining a set of devices or ports to appear in more than one Enhanced TI Zone A preferred path is one that has failover enabled and an exclusive path has failover disabled An exclusive path in the following topologies is beneficial as it will limit the number of hops between directors e Triangular e System Data Mover e Emulation Enhanced TI Zoning for the topologies listed above is available only on the following platforms running Fabric OS v6 4 0 or later Brocade 5100 e Brocade 5300 e Brocade 7800 e Brocade DCX e Brocade DCX 4S Triangular topology The triangular topology shown in Figure 14 is a common FICON deployment for managing data center recovery functions In this topology a director is located in each of three sites and connected to the other two forming a triangle In most environments the purpose of this configuration is to give the host application the ability to connect to storage media at the other two sites which allow it to recover from an outage at either site Meanwhile the st
47. O default mode The partition is configured for 10 bit addressing Disable this mode for FICON environments using modes 1 and 2 e Mode 1 zero based 8 bit area assignments are made as ports are added to the logical switch starting at area OxOO FICON CUP port addresses will correspond to these 8 bit areas You can change these area assignments using the portAddress bind command FICON Administrator s Guide 53 1002154 01 FICON and FICON CUP in Virtual Fabrics 2 e Mode 2 port based 8 bit area assignments are made and the area assignments will be related to the physical location of the port FICON CUP port addresses will correspond to these 8 bit areas These addresses are fixed and cannot be changed Mode 2 is sometimes called fixed addressing and is applicable to a default switch enabled for Virtual Fabrics on a DCX platform only Mode 2 is Supported only in logical switch when a 48 port blade is not present Mode 1 example The following example illustrates mode 1 where port addresses are assigned in increasing order Enable a 256 Area Limit 0 1 1 In this mode the area field of the PID is allocated dynamically to the F_Ports FL_Ports EX_Ports and E_Ports up to a maximum of 256 areas Changing port address numbering In mode 1 as ports are assigned to the logical switch they are assigned port addresses in an increasing manner You can change the port address numbering using the portAddress command Use
48. P and cannot be associated with any physical port with FMS mode enabled Therefore note the following when using FMS mode You must manually disable ports associated with OxFE and OxFF to enable FMS mode but only if there is an active device connected to these ports Otherwise the Fabric OS will disable them automatically when FMS is enabled Enabling FMS mode disables all ports with OXFE and OxFF addresses If you enable FMS mode you will get port disable messages for physical ports with OxFE or OxFF FICON addresses You cannot enable FMS mode when physical ports have OxFE or OxFF FICON addresses with live devices connected Port Swapping and Blade Swapping cannot be performed when FMS mode is enabled and swapped ports have OxFF or OxFE FICON addresses Upgrade considerations Take the CUP offline before performing an upgrade or downgrade operation The upgrade can disrupt CUP exchanges especially for active RMF sessions For Fabric OS 7 0 and laster a FICON CUP license is required to enable FMS mode Consider the following when using FMS mode and upgrading from Fabric OS v6 4 to v7 0 If using Fabric OS v6 4 and FMS mode is enabled but a FICON CUP license was never installed You can manage the port connectivity configuration through management applications such as the Brocade Network Advisor and WebTools The Inband Management feature is not enabled After a nondisruptive upgrade from Fabric OS v6 4 to v7 0 O You
49. R 6 Switched point to point 2 0 0 0 cee 6 Cascaded FICON 000 ccc cee eee eee 7 Access control in FICON 00 0 c eee ee nn 8 Cascaded zoning sii sonaia ae saa ae aaen aea eee eee 9 Error reporting 2 llle enn 11 Secure access Control ee eee ee 11 FICON commands 000 cece eee eee eee 13 iii Chapter 2 Administering FICON Fabrics In this Chapter vus deu neuf inn ORG cire ceni 15 User security considerations lille 15 Meeting Query Security Attribute requirements 15 Preparing a switch for FICON 00 cee eee ee eee 17 Cascaded FICON and 2 byte addressing considerations 17 Configuring switched point to point FICON 04 18 Configuring cascaded FICON 0 000 cee eee eee 21 FICON and FICON CUP in Virtual FabricS 000 22 Flat addressing mode cece cee 22 256 area addressing MOde 0 cece eee eee 22 Changing the addressing mode 200 nnan 23 Moving ports to a logical switch 20000 eee eee 24 Clearing the FICON management database 24 Chapter 3 Configuring FICON CUP In this chapter ees iR eror e a Rue doa Ride 27 Control Unit Port overview llle 27 FICON CUP restrictions 00 0 eee eee 29 CUP configuration recommendations 06 29 FICON CUP zoning and PDCM considerations 30 Port and switch naming standards for FMS
50. RU EUER AER REOR oe sae Blade swapping rye eae eee axe Ra xxt dee tg Common FICON iSSUES 2 0 0 cee nnn Troubleshooting FICON 0 00 cece e 79 General information to gather for all cases 79 Switched point to point topology checklist 80 Cascaded topology checklist 000 eee eee eee 80 Gathering additional information 0 00005 81 Troubleshooting FICON CUP 0 00 c cece eee 81 Troubleshooting NPIV 0 2 cece eee eee 82 Appendix A Configuration Information Record Appendix B EBCDIC Code Page Index FICON Administrator s Guide 53 1002154 01 About This Document In this chapter e How this document IS organized xeceersscauersatzerrirrketereaw eras vii Supported hardware and software 0 ccc ee eee viii e Whats new i TiS dOQUWIQGD ICs so as kc EORR E EUR ORO ER CREE oed viii e Document CONVENTIONS ccrersckcerx een REY eere EE eR ex xkes ix NAUCE tO CBE NTS Fos ica acme ted uel Sero pai nace qa OR ecd SG RR hu udo am Ry a xi Additonal MOMA ics cece XO REGERE PAARE REED RT EEG E AK xi e Getting technical helps esee rx RXCEECERECEEOEA CERE XC E HAEC FE RR xii Docoment feed DaeK Lus nsa de Rea xray oe e RR Ara leery M ce di xiii How this document is organized This document is organized to help you find the information that you want as quickly and easily as possible The document contains the following components e Chapter 1
51. Tape Performance Monitor Data Sample Time Period in ms 9794 Tape Write Performance Data Emulated Chains per sec 133 Emulated CCWs per sec 1085 Ave Write Block Size 32760 Emulated Write BPS 35558640 Tape Read Performance Data Emulated Chains per sec 38 Emulated CCWs per sec 318 Ave Read Block Size 32760 Emulated Read BPS 10431720 58 FICON Administrator s Guide 53 1002154 01 Displaying FICON emulation performance statistics 4 FICON XRC emulation performance statistics Use portshow xtun lt veport gt ficon xrcperf to display XRC also known as IBM z OS Global Mirror performance statistics on 7800 switches and FX8 24 blades as in the following example XRC Performance Monitor Data Sample Time Period in ms 12874 Emulated Chains per sec 250 Emulated RRS Cmds per sec 35000 Emulated RRS Bytes per sec 140000000 Average RRS Update Size 4000 FICON Administrator s Guide 59 53 1002154 01 4 60 Displaying FICON emulation performance statistics FICON Administrator s Guide 53 1002154 01 Chapter Maintaining and Troubleshooting FICON 5 In this chapter e Firmware management in a FICON environment 005 61 Configuration restoration in a FICON environment 0 55 62 Tratiie Becilaultin JODIE rpasis ER Rep RR PERRES GR ERG EEG eeds bes 63 OER TS D M TC PTT T FIGON IMO caca ker ka E AET teres aeRO eens A Re Rd 71 e Poll SWABPING lt 5 Hho Sauer oder
52. a Traffic Isolation zone TI Zone to assign a specific tunnel to Channel and control unit ports In the cases where multiple tunnels are required between a pair of FICON switches or Logical Switches use TIZ to define ports that should use specific tunnels FCIP tunnel between sites The Brocade 7800 and FX8 24 uses FCIP Trunking features to overcome the limitation of one Ethernet interface one IP address and one FCIP tunnel In Fabric OS v6 3 and later an FCIP Tunnel is created with multiple FCIP circuits over different IP interfaces to provide WAN load balancing and failover recovery in the event of a limited WAN outage This provides a highly redundant WAN configuration for all FICON or FCP emulation technologies with Fabric OS Figure 13 shows that a tunnel can have up to 4 circuits per GbE port SZ N WAN AR IP Router IP Router 10 0 0 1 10 0 1 1 FCIP Circuits o FCIP Tunnel FIGURE 13 FCIP tunnel and circuits Traffic Isolation Zoning The Traffic Isolation Routing feature may be used to control the flow of interswitch traffic through the Brocade extension switch or blade VE Port or E Port connections Traffic Isolation Routing uses a special zone called a Traffic Isolation zone TI zone to create dedicated paths for specific traffic For more information on Traffic Isolation Routing and creating zones refer to the Fabric OS Administrator s Guide When setting up TI Zones in your FICON environment it is
53. also contains the IPL file that was current at the time the command was executed Refer to the Fabric OS Administrator s Guide for more information on the configUpload process Configuration files uploaded When you execute the configUpload command all the files saved in the file access facility are uploaded to a management workstation there is a section in the uploaded configuration file labeled FICU SAVED FILES where the files are stored in an encoded format Configuration files downloaded with Active Saved mode enabled The contents of existing files saved on the switch which are also present in the FICON CUP section are overwritten The files in the FICU SAVED FILES section of the configuration file which are not currently on the Switch are saved on the switch The IPL will not be replaced because Active Saved mode is enabled A warning message is displayed in the event log to warn users that the IPL will not be overwritten Configuration files downloaded with Active Saved mode disabled The contents of existing files saved on the switch which are also present in the FICU SAVED FILES section are overwritten The files in the FICU SAVED FILES section of the configuration file which are not currently on the Switch are saved on the switch The IPL is replaced because Active Saved mode is disabled Sample IOCP configuration file The channel subsystem controls communication between a configured channel the con
54. anagement Server marks an entry as secondary it is marked with S If the LIRR is configured then the XX indicates a valid port number Otherwise the line will display the following Current LIRR device port number is not configured Node identification data To display node identification data connect to the switch log in as user and enter any of the following commands e For the local switch ficonShow switchrnid e For all switches defined in the fabric ficonShow switchrnid fabric e For all devices registered with the local switch ficonShow rnid e For all devices registered with all switches defined in the fabric ficonShow rnid fabric FRU error reporting FRU failure information is no longer stored on the switch FRU error information such as FRU failures and fan and power supply removals and insertions are stored in error reports as sense data All FRUs in a chassis have an assigned number that is included in this data Each CUP instance retains a database of ten FRU error reports All error reports are sent to host LPARs that have appropriate Current Reporting Paths established with the CUP Error reports are added to the database as they occur then they are removed when sent If the database fills up new reports are discarded and not delivered FICON Administrator s Guide 53 1002154 01 FICON information 5 Error data Following are some examples of error data available from the host The number identifyin
55. anged quickly Blade swapping has minimal or no impact on other switch features e Device connection control DCC policy Used to restrict which Fibre Channel device ports can connect to which Fibre Channel switch ports e FICON MIB module Addresses link incident data for FICON hosts and devices connected to a switch It supplements other MIBs used to manage switches and should be used in conjunction with those other MIBs For more information Refer to the Fabric OS MIB Reference FICON Administrator s Guide 1 53 1002154 01 1 FICON overview Insistent domain ID IDID Allows the switch to insist on a specific domain ID before joining a fabric This feature guarantees that a switch operates only with its preassigned domain ID Link incident detection registration and reporting Provides administrative and diagnostic information Port swapping Redirects resources from a failed port to a healthy port without changing the mainframe hardware configuration definition HCD settings Port swapping is available for both FICON and open system environments Port swapping resolves situations in which the hardware has failed and the channel configurations cannot be changed quickly Port swapping has minimal or no impact on other switch features Switch connection control SCC policy Includes switch binding security methods that prevent unauthorized switches from joining a fabric Traffic Isolation TI Zones and Enhanced TI Zones
56. as appropriate Allow XISL USE 0 This parameter must be zero O for FICON Set the 256 area mode This parameter can be set to 1 or 2 for FICON CUP Q9 0 OY Or gx oe gp Dynamic or zero based area assignment 256 Area Mode 1 has the advantage of allowing you to use high port count 48 port blades Fixed or port based area assignment 256 Area Mode 2 For this mode you cannot add a port with an index greater than 255 to the partition As the name implies the default assignment is area port 10 Add ports to the logical switch using the IsCfg configure command 11 Optionally Area Mode 1 Bind a port address to the index using the following syntax portaddress bind SlotNumber PortNumber 16 bit area auto 110 12 Display switch port content using the switchShow command 13 Once the logical switches are set up install CUP on the logical switch per the instructions in Configuring FICON CUP on page 31 Determining physical port assignment The following instructions help you locate the physical port from CUP PortAddress Connect to the switch and log in using an account assigned to the admin role Set the context to the appropriate logical switch Enter the switchShow command Look for the PID in the Address column Read across to the Slot and Port columns oa PF WN pP Enter the portAddress findPID command Example of locating the physical port address Index Slot Port Address Media Speed S
57. ation for Teradata sequences over an FCIP Tunnel is controlled by using FICON emulation feature flags in the portcfg fciptunnel command associated with the FCIP Tunnel Refer to Configuring emulation on the 7800 switch and FX8 24 blade on page 51 FICON Administrator s Guide 47 53 1002154 01 4 FCIP configuration requirements for FICON extension Platforms supporting FICON extension over IP Fabric OS supports SAN extension between Brocade 7800 extension switches FR4 18i blades and FX8 24 blades e The Brocade FR4 18i blade has 16 physical Fibre Channel ports and 2 physical GbE ports e The Brocade 7800 switch has 16 physical Fibre Channel ports and six physical GbE ports e The FX8 24 blade has 12 physical Fibre Channel ports 10 GbE ports and two physical 10GbE ports FCIP configuration requirements for FICON extension FICON extension uses FCIP for transport FCIP interfaces and tunnels used for FICON extension must be defined prior to configuring FICON emulation Ports should remain persistently disabled until after FICON emulation is configured Refer to Brocade FCIP Administrator s Guide for information about configuring FCIP interfaces tunnels and circuits Configuration requirements for switches and directors 48 There are three configuration issues to consider when an extension switch or blade is connected to a switch in a FICON configuration e If you are creating a cascaded configuration connecting two switche
58. atrix that allows you to set and clear the PDCMs for all external ports If there are any differences between restrictions set up with Brocade Advanced Zoning and PDCMs the most restrictive rules are automatically applied FMS must be enabled for the Allow Prohibit matrix to be operational and there must be an active zoning configuration D I zoning is recommended for FICON but is not specifically required If Brocade Advanced Zoning is in use refer to the Fabric OS Administrator s Guide for more information on configuration Port and switch naming standards for FMS 30 FMS and the FICON Programming Interface employ 8 bit EBCDIC characters in port address names and switch names Fabric OS employs 7 bit characters therefore when FMS mode is enabled all characters greater than Ox40 and not equal to OxFF EBCIDC code page 037 0x25 refer to Appendix B EBCDIC Code Page are allowed iport address names and it is possible for a channel to set a name with nonprintable characters If a name contains nonprintable characters those characters are displayed as dots The following characters are also displayed as dots semicolon comma equal sign and at sign Q FICON CUP Fabric OS commands Table 3 summarizes the Fabric OS CLI commands that can be used for managing FICON fabrics For detailed information on these commands see the Fabric OS Command Reference TABLE 3 Fabric OS commands related to FICON CUP
59. bind Unbinds the currently bound address for the specified port portSwap Swaps ports portSwapDisable Disables the portSwap command portSwapEnable Enables the portSwap command portSwapShow Displays information about swapped ports supportShowCfgEnable ficon Turns on logging of FICON information on the switch Commands specific to FICON ficonclear rlir Removes all RLIR records from the local RLIR database ficonclear rnid FICON Administrator s Guide 53 1002154 01 Removes all outdated RNID records from the local RNID database 13 14 1 FICON commands TABLE 1 Command ficoncfg set LIRR lt portnumber gt Fabric OS commands related to FICON Continued Description Sets the current LIRR device port number persistently ficoncfg reset LIRR lt portnumber gt Clears the currently configured LIRR port number ficonhelp Displays a list of FICON support commands ficonshow lirr fabric Displays registered listeners for link incidents for the local switch or for the fabric if specified ficonshow rlir fabric Displays link incidents for the local switch or for the fabric if specified ficonshow rnid fabric Displays node identification data for all devices registered with the local switch or all devices registered with all switches defined in the fabric if specified ficonshow switchrnid fabric Displays node identification data f
60. bre Channel link to the switch through the control unit and ending at the device This is also called a channel path which is a single interface between a central processor and one or more control units along which signals and data can be sent to perform I O requests The channel path uses the logical path to traverse the Fibre Channel fabric The channel path is defined using an ID called the channel path ID CHPID This information is stored in the Input Output Configuration Program IOCP so that the same path is used The IOCP is a z OS program that defines to a system the channels I O devices paths to the I O devices and the addresses of the I O devices The output is normally written to a z OS or zSeries Input Output Configuration Data Set IOCDS The data set in the z OS and zSeries processor in the support element contains an I O configuration definition built by the IOCP Work Load Manager Device A Control Unit Device 2 eee Logical path Channel path ID 1 Channel path ID 2 Channel path ID 3 FIGURE 1 FICON traffic The traffic on the channel path communicates using channel command words CCWs that direct the device to perform device specific actions such as Seek Read or Rewind In a FICON environment CCWs use the buffer credit process for information unit IU pacing IU pacing is a mechanism that limits the number of CCWs and therefore the number of IUs that can either transmit write or solicit
61. can manage the port connectivity configuration using management programs such as the Brocade Network Advisor and Web Tools The Web Tools mode register is accessible O To enable Inband Management you must install a FICON CUP license and disable then re enable FMS mode NOTE The preceding information does not apply to the DCX 8510 as a nondisruptive upgrade is not possible If using Fabric OS v6 4 and FMS mode is enabled but a FICON CUP license was installed then removed You can manage port connectivity through management applications such as the Brocade Network Advisor and WebTools The Web Tools mode register is accessible nband Management is enabled providing you do not disable FMS mode disable then re enable the switch or power cycle the switch FICON Administrator s Guide 53 1002154 01 Mode register bit settings 3 After a nondisruptive upgrade from Fabric OS v6 4 to v7 0 You can manage port connectivity using the Allow Prohibit matrix in Brocade Network Advisor and Web Tools Note that these applications are not available unless you install a FICON CUP license The Mode Register is accessible via WebTools and the Fabric OS commands nband management is enabled provided you do not disable FMS mode disable then enable the switch or power cycle the switch f you disable FMS a FICON CUP license is required to re enable the feature Mode register bit settings A mode register controls the behavi
62. ches and directors High integrity fabric requirements for cascaded confIBUratloris oce EA EPOR CERRAR EE FICON emulation requirement for a determinate path Configuring FICON emulation sasssa naana anaana Configuring emulation on the FR4 18i blade Configuring emulation on the 7800 switch and FX8 24 Modifying FICON emulation 0 0 0 0 cee eee Displaying FICON emulation performance statistics FICON emulation monitoring l l FICON emulation statistics llleseslseseeesnss Chapter 5 Maintaining and Troubleshooting FICON In this chapter seme mk mech eee me xen Firmware management in a FICON environment Upgrade and downgrade considerations Firmware upgrade disruption lslllleelsssen Non disruptive firmware upload and download Configuration restoration in a FICON environment Traffic Isolation Zonin lesser Determining ports for the Tl Zone 2 2 2 0 eee eee Enhanced Tl Zoning lees Port fencing coe nee EL o p xac ded oen e EE Defining port fencing lessen Settings for FICON environments llslslelssss FICON information llle nn Link incidents se e i a i a a a mme Registered listenerS 0 2 cece Node identification data 00 annaa neea FRU error reporting 0 2 eee eee PortswapplHg 55333 curet d eR a E
63. ches with Dynamic Addressing mode such ports may be reclaimed for external connections by binding a new address to the port if unused addresses are available Ports that are disabled for having addresses FE or FF when FMS is enabled are not eligible for port swapping In a FICON environment only one RMF LPAR be configured to poll the CUP for port statistical counter data in order to minimize contention for the CUP device Host contention for access to the CUP can lead to missing interrupts potentially causing the host to box the device It is a best practice however to have more than one CHPID defined as a path to the CUP in order to ensure redundancy for host to CUP connectivity FICON Administrator s Guide 53 1002154 01 Control Unit Port overview 3 FICON CUP restrictions The following restrictions apply to Brocade FICON directors having at least 256 ports when FMS mode is enabled and when host applications are used for inband monitoring and management of the switch FICON Management Server mode FMS mode must be enabled on the switch to enable CUP management features When this mode is enabled Fabric OS prevents configuration requests from out of band management interfaces from interfering with host in band configuration requests by serializing access to switch parameters ATTENTION Once FMS mode is enabled you cannot bind FE FF to any ports using either the portAddress or wwnAddress commands The switch is advertis
64. command displays the FMS mode enabled disabled state for the switch switch admin ficoncupshow fmsmode fmsmode for the switch Enabled Enabling FMS mode 1 Connectto the switch and log in using an account assigned to the admin role 2 Enter ficonCupSet f msmode enable 3 Enter the ficonCupShow f msmode command to verify if FMS mode is enabled Disabling FMS mode 1 Connect to the switch and log in using an account assigned to the admin role 2 Enter ficonCupSet fmsmode disable 3 Enter the ficonCupShow fmsmode command to verify if FMS mode is disabled Setting up FICON CUP if FMS mode is enabled 1 Connectto the switch and log in using an account assigned to the admin role 2 Verify that FMS mode is enabled by entering the ficonCupShow fmsmode command ATTENTION If FMS mode is already enabled disabling it might be disruptive to operation because ports that were previously prevented from communicating will now be able to do so 3 If FMS mode is enabled then disable it by entering the ficonCupSet f msmode disable command 4 Enter the ficonCupShow f msmode command to verify if fmsmode is disabled Install the CUP license 6 Enter the ficonCupSet fmsmode enable command FICON Administrator s Guide 35 58 1002154 01 3 36 FMS mode and FICON CUP T Enter the ficonCupShow fmsmode command to verify if FMS mode is enabled FMS mode and FICON OxFE or OxFF addresses OxFE and OxFF are assigned to the CU
65. ctto the switch and log in using an account assigned to the admin role 2 Enterthe ficonCupSet modereg command to set the FICON CUP mode register bits for the local Switch FICON Administrator s Guide 39 58 1002154 01 Setting the MIHPTO value Example of setting the mode register bit HCP to off switch admin ficoncupset modereg HCP 1 Mode register bit HCP has been set to 1 Example of setting the mode register bit ACP to on switch admin ficoncupset modereg ACP 1 Mode register bit ACP has been set to 1 Setting the MIHPTO value You can set missing interrupt handler primary timeout MIHPTO value and this determines how long the channel will wait before timing out an expected response from the CUP This value is part of the data returned to the host when it reads the configuration data but the host is under no obligation to adhere to this value The actual value that the host will use before detecting a timeout can be set by the system programmer overriding the value returned by the switch The ficonCupSet MIHPTO command can be used to increase decrease or display the MIHPTO value that the CUP returns to the host when configuration data is read Changing the MIHPTO value requires that the CUP control device be varied offline from the host as the host will not automatically be notified when the value is changed The host will normally read the new value using the Read Configuration Data command when the CUP is varied bac
66. d routing aptPolicy 1 6 Set In Order Delivery using the iodSet command Configure the switch parameters using the configure command and enter the responses shown in Table 2 when prompted Items in italics are top level parameters TABLE 2 FICON switch parameters Parameter Response Comment Fabric parameter Yes Prompts for the fabric parameters Domain The domain ID is the switch address The recommended best practice is to set the switch address and switch ID to be the same The domain ID is entered in decimal so a switch address of hexadecimal 0x22 would have a domain ID of decimal 34 R A TOV 10000 Do not change Resource Allocation Time Out Value RA TOV FICON Administrator s Guide 53 1002154 01 Configuring switched point to point FICON 2 TABLE 2 FICON switch parameters Continued Parameter Response Comment E D TOV 2000 The E D TOV is a timeout value entered in milliseconds It should remain at 2 seconds 2000 unless connected to extension equipment In some cases when connecting to extension equipment such as the Brocade 7800 it needs to be set to 5 seconds 5000 This field should only be changed after consulting a Brocade Certified Fabric Professional WAN TOV 0 MAX HOPS 7 This parameter should not be confused with the one hop FICON cascading limitation There are configurations that are more than one hop because more than two domain IDs are used in the path that fit within th
67. ddressing the physical ports with addresses OxFE and OxFF are essentially wasted and may be used better elsewhere This is the same for a switch with dynamic addressing where all available addresses are used and thus no addresses are available for binding to these ports In a logical switch where there are addresses available you can simply bind a new address to such ports in order to make them available for external connections Enter the ficonCupShow fmsmode command to verify if FMS mode is disabled 31 3 Configuring FICON CUP in Virtual Fabrics 5 Take the appropriate action based on whether FMS mode is enabled or disabled e f FMS mode is disabled proceed to step 6 e If FMS mode is enabled disable it using the ficonCupSet f msmode disable command ATTENTION If FMS mode is already enabled disabling it might be disruptive to operations because ports that were previously prohibited from communicating will be allowed to do so because prohibits are no longer enforced You must disable FMS mode to continue setting up CUP 6 Install a CUP license on the switch For more information on installing a license refer to the Fabric OS Administrator s Guide 7 Enter the ficonCupSet fmsmode enable command to enable FMS mode FMS mode on the switch 8 Enter the ficonCupSet modereg command to set the mode register bits Refer to Mode register bit settings on page 37 for more information 9 Verify with the systems programmer t
68. e IBM support limitation of one hop Data field size 2112 Do not change Sequence level switching 0 Do not change Disable device probing 0 Do not change Suppress Class F traffic 0 Do not change Per frame route priority 0 Do not change Long distance fabric 0 Do not change The recommended best practice is to configure individual ports for long distance when cascading at extended distances Insistent Domain ID mode Yes The recommended best practice is to set the domain ID to be insistent Setting the insistent domain ID is required for 2 byte addressing Virtual Channel parameters No Do not change F Port login parameters No With Fabric OSv6 1 0 and later it is not necessary to make any changes to F Port login parameters The only other reason to answer yes y to this prompt is if NPIV is being used and there is a need to change the default number of NPIV logins Maximum logins per switch Change this only if NPIV is being used and the number of fabric logins will exceed the default or there is a need to limit the number of logins Maximum ogins per port Change this only if NPIV is being used and the number of port logins will exceed the default or there is a need to limit the number of logins Maximum ogins per second For Fabric OS v6 1 0b and later Do not change Leave at default NOTE The default value is incorrectly shown as O Login stage interval Do not change
69. e bladeSwap command runs on the Fabric OS The Fabric OS then validates each command before actually implementing the command on the enterprise class platform If an error is encountered then blade swap quits without disrupting traffic flowing through the blades If an unforeseen error does occur during the bladeSwap command an entry will be made into the RASIog and all ports that have been swapped as part of the blade swap operation will be swapped back On successful completion of the command the source and destination blades are left in a disabled state allowing you to complete the cable move Blade swapping is based on port swapping and has the same restrictions e Shared area ports cannot be swapped Ports or blades with area OxFE or OxFF addresses cannot be swapped when FMS mode is enabled e Ports that are part of a trunk group cannot be swapped e GbE ports cannot be swapped e Swapping ports between different logical switches is not supported The ports on the source and destination blades need to be in the same logical switch e Undetermined board types cannot be swapped For example a blade swap will fail if the blade type cannot be identified e Blade swapping is not supported when swapping to a different model of blade or a different port count For example you cannot swap an FC8 32 blade with an FC8 48 port blade e Blade swapping is not supported on application blades NOTE This feature is not supported on the FX8 24
70. e device level recovery at the channel or control unit Generally channel to control unit access is deployed as one to many topology where one channel is defined to access many control units FICON environments however are deployed in multiple redundant configurations that also define access from one control unit to many channels When emulation is involved these configurations can result in overlapping channel and control unit connections that make emulation isolation difficult By using the Enhanced TI Zoning feature to support device membership in multiple zones these types of emulation configurations are addressed TI Zone 1 TI Zone 2 FIGURE 18 Emulation topology using Enhanced TI Zones FICON Administrator s Guide 69 53 1002154 01 5 Port fencing Port fencing 70 Figure 18 on page 69 shows the following Enhanced TI Zoning definitions for the emulation topology e Green TI Zone includes channel O ISL 80 ISL 81 Grid 1 and Grid 4 e Blue TI Zone includes channel 1 ISL 82 ISL 83 and CU Grid 4 The unique characteristic of these zones is that each channel is defined with two control unit device ports and one of the control unit device ports CU Grid 4 is in both zones In a traditional TI Zone definition these zones would have to be combined to provide the appropriate connectivity but then in the event of an ISL failure it would lead to a multi hop multi emulation path that would severely affect perfo
71. e policy enter the following command fddcfg fabwideset Displaying fabric wide consistency policy To display fabric wide consistency policy information enter the following command fddcfg showall Displaying the current Security Policy To display the current security policy enter the following command secpolicyshow Creating SCC policy To create the switch connection control SCC policy and define the WWN of switches allowed in the fabric perform the following steps on each switch in the fabric This adds all switches in the fabric if they are connected 1 Enter the following command to create the SCC policy secpolicycreate SCC_POLICY You can also use the following command secpolicyadd SCC_POLICY wwnl wwn2 FICON Administrator s Guide 53 1002154 01 Preparing a switch for FICON 2 2 Enterthe following command secpolicyactivate Deleting SCC POLICY Enter the following command if you get messages that the E Port in a security violation state secpolicydelete SCC POLICY Recovering the E Port Enter the following commands for each switch if the E Port is down secpolicyactivate portenable n Preparing a switch for FICON The following steps are provided for you to verify and prepare a switch for use in a switched point to point FICON environment Single switch configuration does not require insistent domain IDs IDIDs or fabric binding provided that connected channels are configured for s
72. ed point to point FICON Configuring switched point to point FICON 18 Use the worksheet in Appendix A Configuration Information Record to record your configuration information These steps assume you have used your hardware reference manual to perform the initial setup of the switch and have performed all the steps from Preparing a switch for FICON on page 17 An CAUTION Configuring the switch for FICON is a disruptive process The switch must be disabled to configure switch parameters 1 Connect to the switch and log in using an account assigned to the admin role 2 Enter the switchDisable command You will need to disable the switch to access all the switch parameters Configure the switch and chassis name if applicable 4 Setthe routing policy to port based routing aptPolicy 1 by entering the aptPolicy command The recommended best practice is to use port based routing In addition if FICON Emulation features IBM z OS Global Mirror or Tape Pipelining are enabled on an FCIP Tunnel in the switch aptPolicy 1 must also be used 5 Configure Dynamic Load Sharing The recommended best practice is to enable Dynamic Load Sharing DLS however DLS is only supported when Lossless is enabled e To enable Lossless with DLS use the dlsSet enable lossless command e If Lossless will not be used use the dlsReset command NOTE If Lossless DLS is not enabled with Lossless DLS the routing policy must be port base
73. ed to the mainframe by the CUP as having a specific number of ports which is based on the hardware platform The maximum supported switch size is 256 ports The addresses FE FF are not components of the Allow Prohibit Matrixes as they are called in the Brocade Network Advisor or CUP Configurations as they are referred to in Web Tools because the Prohibit Dynamic Connectivity Masks PDCMs for these two ports are defined architecturally and cannot be modified by the user The Port Address Name for the internal FE port can be read by the host and corresponds to the switchname that is set for the switch The switchname may be modified by the host with the limitation that the host may write EBCDIC characters that cannot be converted directly to ASCII for display in the GUI or CLI management interfaces Such characters will be converted to periods for these displays The FC8 48 blade supports FICON attachment in switches or logical switches In the Brocade DCX the FC8 48 is only supported in a logical switch configured for zero based addressing Addresses OxFE and OxFF are not available for external connections Before enabling FMS mode you must manually disable physical ports associated with OxFE and OxFF if there is an active device connected to these ports Otherwise these ports disable automatically when FMS is enabled Because these ports are not available after enabling FMS mode you should first move any fiber connected to either of them
74. efer to Enabling insistent domain ID on page 16 b Set the domain ID It is highly recommended that the switch ID used in HCD and IOCP be the same as the switch address in hexadecimal All switches ship from the factory with a default domain ID of 1 The best practice is to use something other than 1 so that a new switch can be added to the fabric without changing the domain ID Use the secPolicyCreate command to configure the SCC policies on all switches to limit connectivity to only the switches in the selected fabric switch admin gt secPolicyCreate SCC POLICY member member In the command syntax member indicates a switch that is permitted to join the fabric Specify switches by WWN domain ID or switch name Enter an asterisk to indicate all the switches in the fabric To create a policy that includes all the switches in the fabric switch admin secPolicyCreate SCC POLICY 21 2 FICON and FICON CUP in Virtual Fabrics 3 Save or activate the new policy by entering either the secPolicySave or the secPolicyActivate command If neither of these commands is entered the changes are lost when the session is logged out To activate the SCC policy enter the following command switch admin secPolicyActivate 4 Enterthe fddCfg command to enable ACL Fabric Wide Consistency Policy and enforce a strict SCC policy switch admin fddcfg fabwideset SCC S 5 Connectand enable channel and control unit CU devices
75. ently present on the switch are saved The IPL file is not replaced because active saved mode is off If fmsmode is enabled in a configuration file but is disabled on the switch the configDownload command fails and displays an error message This prevents undesirable conditions that could result from enabling fmsmode on a switch that does not require it Traffic Isolation Zoning Traffic Isolation Tl Zoning allows data paths to be specified In a FICON fabric you need Fabric OS v6 2 0 or later TI Zoning has the following benefits e Separates direct attached storage device DASD and tape traffic Selects traffic for diverse ISL routes typical of dual fiber networks e n conjunction with long distance channel extension equipment FICON Acceleration guarantee bandwidth for certain mission critical data For more information on Traffic Isolation Zoning refer to the Fabric OS Administrator s Guide Determining ports for the Tl Zone To find the device ports use the MVS display command The following example shows how to determine where device DOOO is connected and the paths to it from the MVS console enter D M DEV D000 Response is DEVICE D000 STATUS ONLINE CHP 9C 9D 9E 9F ENTRY LINK ADDRESS 883C 883D 883E 883F DEST LINK ADDRESS 790C 790D 790E 790F PATH ONLINE Y Y Y Y CHP PHYSICALLY ONLINE Y Y Y Y PATH OPERATIONAL Y Y Y Y MANAGED N N N N CU NUMBER D000 D000 D000 D000 MAXIMUM MANAGED CHPID S ALLOWED 0 DESTI
76. er Event Log EFCM or Brocade Network Advisor logs By default the FICON group in the supportShow output is disabled To enable the capture of FICON data in the supportShow output enter the supportShowCfgEnable ficon command After you get confirmation that the configuration has been updated the following will be collected and appear in the output for the supportShow command ficonCupShow fmsmode ficonCupShow modereg ficonDbg dump rnid ficonDbg log ficonShow lirr ficonShow rlir ficonShow rnid ficonShow switchrnid ficuCmd dump A Type of mainframe involved Need make model and driver levels in use Type of actual storage array installed Many arrays will emulate a certain type of IBM array and we need to know the exact make model and firmware of the array in use Other detailed information for protocol specific problems Port data structures displayed using the ptDataShow command Portregisters displayed using the ptRegShow command Read Brocade Release Notes for specific version information regarding the Fabric OS installed The following needs to be performed to troubleshoot all FICON setups FICON Administrator s Guide 53 1002154 01 Perform a configUpload to gather configuration files Provide the IOCDS mainframe file This will define how all mainframe ports are configured Verify that Dynamic Load Sharing DLS has been disabled with the dlsReset command If DLS is enabled
77. eters on the switch The default setting is O off The ficonCupShow modereg command displays the mode register bit settings for the switch A display of O indicates that the mode register bit is set to off 1 indicates that the bit is set to on The following example displays all mode register bit settings for the switch When the POSC bit 1 the FICON host is allowed to set the switch offline The bit is set to 1 by default If you do not want to allow the host to have permission to set the switch offline the bit should be turned off The state of this bit cannot be changed by the FICON host it can only be changed through the command line switch admin ficoncupshow modereg POSC UAM ASM DCAM ACP HCP To display the mode register bit HCP for the switch enter the ficonCupShow command as shown in the following example switch admin ficoncupshow modereg HCP HCP 0 FICON Administrator s Guide 37 53 1002154 01 38 3 Mode register bit settings FICON file access facility The FICON file access facility FAF is used to store configuration files This includes the initial program load IPL and other configuration files The Fabric OS saves the IPL and all other configuration files on the switch A maximum of 16 configuration files including the IPL file are supported You can upload the configuration files saved on the switch to a management workstation using the configUpload command Data uploaded using the configUpload command
78. fer to the Fabric OS Command Reference for more information on the variables you can use to display the various FICON statistics FICON emulation monitoring Use examples in this section to display emulation monitoring for extension blades and switches Use the emul argument for the portShow ficon and portShow xtun command to monitor FICON emulation Following are examples of these commands e Following is an example for the FR4 18i blade switch admin portshow ficon slot ge_port tunnelId ficon emul Following is an example for the 7800 switch or FX8 24 blade switch admin portshow xtun slot ve port ficon emul FICON Administrator s Guide 53 53 1002154 01 4 Displaying FICON emulation performance statistics Following is a tape output example for FRA 18i blade Output for the 7800 switch and FX8 24 blade is similar TAPE EMULATION STATS pte Sap ee ees T 4 4 4 4 4 4R 4 sar FDCB Ptr Path H State Emul Emul Rtry Emulated Emulated RdAvg Emulated WtAvg 0x 0x IDI PipelQ d Od Tape Ops Read CCWs Size Write CCWs Size qeeceu L iat 4 qpeeeIpee peLecepee 4R qe 4 0x10018A00 2463016406050000 H 0x14 0x20 000E 0000 13212 0 0 125754 32760 0x1001E800 2463016406050001 H 0x14 0x20 001A 0000 13647 0 0 128776 327
79. fore you configure FICON emulation you need to understand the available options and whether those options are to be implemented in your installation If FICON emulation is new to you read FICON emulation overview on page 43 50 ATTENTION Make sure both ends of the tunnel match before bringing it up or the tunnel will not form 1 o sog Verify that the following ports are opened in the IP network for FCIP e TCP 3225 FC Class F frames e TCP 3226 FC Class 2 and 3 frames e TCP 3227 Brocade proprietary IP path performance utility ipPerf e IP protocol 6 Transmission Control Protocol e P protocol 108 IP Payload Compression Protocol IPComp NOTE The 4 Gbps platform uses TCP port 3227 for ipPerf and IP protocol 108 for compression The 8 Gbps platform runs over the FCIP tunnel not TCP IP directly like ipPerf No specific TCP port is needed Also the 8 Gbps platform compresses at layer 4 and no protocol is used Verify that the firmware is version v6 1 0e or later using the firmwareShow command Verify the correct licenses are installed using the licenseShow command You can verify all slot based licenses in a chassis using the licenseslotcfg show command Verify the switches have been set up according to the instructions in Configuring switched point to point FICON on page 18 and Configuring cascaded FICON on page 21 Configure the FCIP tunnel according to the Brocade FCIP Administrator s Guide Enable compre
80. g Production Backup Site Site FIGURE 17 System Data Mover topology using Enhanced TI Zones Figure 17 on page 68 shows the following Enhanced TI Zones definitions for the System Data Mover topology e Green Zone includes Host A ISL 1 and CU B Orange Zone includes CU A ISL 2 and Host B e Red Zone includes Host A and CU A Blue Zone includes Host B and CU B Using these definitions with failover disabled achieves the desired behavior The production channels can access the local DASD and use an exclusive path to write data to the remote tape The remote channels can access the remote tape and use an exclusive path to write data to the production DASD In both cases the production tape traffic is excluded from intruding on the backup DASD traffic and vice versa 68 FICON Administrator s Guide 53 1002154 01 Traffic Isolation Zoning 5 Emulation topology FICON device emulation topologies have unique requirements due to the characteristics of the emulation devices Each device must track the emulated sessions and maintain the state of the emulated devices in order to satisfy both ends of the connection Since this is done over very long distances care must be taken when configuring the ISL connections to insure that the sessions remain along exclusive paths By maintaining an exclusive path between the emulation units the recovery scenarios become manageable and allow system level mechanisms to take precedence that is th
81. g hardware platforms are supported by this release of Fabric OS v7 0 e Brocade 5100 switch e Brocade 5300 switch e Brocade 6510 switch e Brocade 7800 Extension Switch e FRA4 18i Extension Blade e FX8 24 Extension Blade e Brocade DCX Backbone e Brocade DCX 4S Backbone What s new in this document viii e Information that was added Moving ports to a logical switch on page 24 FMS mode and FICON OxFE or OxFF addresses on page 36 A Upgrade considerations on page 36 FICON and ESCON conversion support on page 47 Teradata emulation on page 47 FICON emulation statistics on page 55 FRU error reporting on page 72 Information that was changed FICON emulation overview on page 43 Added detailed licensing information for features Tape Write Pipelining on page 46 Added details on feature function Configuring emulation on the 7800 switch and FX8 24 blade on page 51 Added Teradata emulation options Displaying FICON emulation configuration values on page 51 Added display for Teradata emulation Port swapping on page 74 Added note that you cannot swap ports with area OxFE or OxFF addresses with FMS enabled Blade swapping on page 75 Added note that you cannot swap blades with area OxFE or OxFF addresses with FMS enabled FICON Administrator s Guide 53 1002154 01 Information that was deleted Cross coupled configurations section in Chapter 4 I
82. g the failed Brocade FRU refer to FRU numbers on page 73 is derived from a single bit from byte 29 as the high order bit and 4 bits from byte 30 or 31 as the low order bits refer to the data in bold in the second lines of the following examples The FRU numbers are decoded for display as the FRU names which display in the third lines of the following examples IOSO00I 1065 AB EQC 8200 MASTER 200 1000A00000000046700010000000000000000000000000000000000000008000 IRDOOOE 1065 002032 001 LEVEL 1 FRU S SLOT8 IOSOOOI 1065 AB EQC 8200 MASTER 286 1000A00000000046700000000000000000000000000000000000000000088000 TRDOOOE 1065 002032 001 LEVEL 0 FRU S FAN1 IOSOOOI 1065 AB EQC 8200 MASTER 461 1000A00000000046700000000000000000000000000000000000000000084000 ITRDOOOE 1065 002032 001 LEVEL 0 FRU S PWR4 IOSOOOI 1065 AB EQC 8200 MASTER 496 1000A00000000046700000000000000000000000000000000000000000089000 IRDOOOE 1065 002032 001 LEVEL 0 FRU S FAN2 IOSOOOI 1065 AB EQC 8200 MASTER 502 1000A00000000046700000000000000000000000000000000000000000081000 IRDOOOE 1065 002032 001 LEVEL 0 FRU S PWR1 IOSOOOI 1065 AB EQC 8200 MASTER 568 1000A0000000004670000000000000000000000000000000000000000008F000 TRDOOOE 1065 002032 001 LEVEL 0 FRU S WWN CRD IOSOOOI 1065 AB EQC 8200 MASTER 662 1000A0000000004670001000000000000000000000000000000000000000A000 IRDOOOE 1065 002032 001 LEVEL 1 FRU S S
83. hat the CUP ports are defined properly FICON ports are defined as part of the sysgen process The z OS systems programmer can verify if the CUP ports are defined properly Configuring FICON CUP in Virtual Fabrics 32 You can configure up to four CUP switches as logical switches in a Virtual Fabrics enabled platform for FMS mode A base switch cannot be configured as a FICON switch FICON CUP enabled logical switches are not supported as logical fabric capable logical switches so FICON logical switches will not participate in the use of extended ISLs on the base switch You cannot have 48 or 64 port blades in the default logical switch with FMS mode enabled Also you cannot have chassis port numbers greater than 255 in a logical switch with FMS mode enabled If addresses OxFE or OXFF have been assigned to physical ports those ports must be disabled When FMS mode is enabled and Virtual Fabrics mode is disabled the ports on a 48 port blade are not managed through FMS mode The ports are intended for FCP devices only When FMS mode is enabled and Virtual Fabrics mode is enabled the ports on a 48 port blade are not supported to connect to either FICON or FCP open system devices This is enforced starting with Fabric OS v6 3 0 and the ports on a 48 port blade are explicitly disabled in the default switch This disabling occurs during an upgrade and insertion of the blade where Fabric OS detects these ports in the default switch When
84. ing FICON CUP Enter the configUpload command to save your FICON configuration Enter the command appropriate for your environment e If you do not have access to an FTP server use a Telnet session that can log console output and enter the supportShow command to save a FICON baseline e If you have access to an FTP server enter the supportSave command to save the FICON baseline of your switch Take the appropriate action based on your configuration e If you have a cascaded configuration continue configuring your switches using the instructions in Configuring cascaded FICON on page 21 e If you have and plan to use a CUP license continue configuring your switches using the instructions in Configuring FICON CUP on page 31 e If you have a switched point to point configuration you have completed the switch configuration Configuring cascaded FICON In addition to performing the steps listed in Configuring switched point to point FICON on page 18 you also need to perform the following steps to configure cascaded FICON An CAUTION Configuring the switch for FICON is a disruptive process The switch must be disabled to configure switch parameters This procedure must be followed prior to channels joining the fabric 1 FICON Administrator s Guide 53 1002154 01 Perform the following actions for each switch a Enable the IDID mode using the Fabric OS configure command For details on enabling the IDID mode r
85. ingle byte addressing However you should configure IDID to ensure that domain IDs are maintained Connect to the switch and log in using an account assigned to the admin role Verify the management IP addresses have been set up Verify the switches can be seen by your management tool Verify the switches have the correct version of Fabric OS Add feature keys if applicable OD gv e ooo Nee IES Enter the configUpload to save a baseline of the switch configuration Cascaded FICON and 2 byte addressing considerations The following are considerations when installing a switch in a FICON environment where 2 byte addressing is used Two byte addressing is always used in cascaded environments but may be used in single switch fabrics as well Making changes to your switch or director may require scheduled downtime e All fabric operating parameters such as timeout values must be the same If you have not made any changes outside the scope of this document there is nothing additional to consider regarding these parameters e The domain IDs of all switches must be unique and insistent e Although not required it will be easier to configure the security policies if the zoning matches Configuration connecting the ISLs and ensuring that the switches and directors have merged into a fabric will also make the process of setting the security attributes much easier FICON Administrator s Guide 17 53 1002154 01 2 Configuring switch
86. k online The MIHPTO setting will persist across reboots POR and failovers Setting this value to the upper end of the time range will allow the CUP more time to process requests during intervals of peak usage without causing the host to detect timeouts It is recommended that the value be set to 180 default seconds 1 Connect to the switch and log in using an account assigned to the admin role 2 Enterthe ficonCupSet MIHPTO command and set the value between 15 and 600 Persistently enabling and disabling ports for CUP 40 When FMS mode is enabled you cannot use the portCfgPersistentEnable and portCfgPersistentDisable commands to persistently enable and disable ports Instead use the following procedure 1 Connect to the switch and log in using an account assigned to the admin role 2 Enter the ficonCupShow modereg command to display the mode register bit settings 3 Verify that the ASM bit is set on 1 4 Ifthe ASM bit is set off 0 enter the ficonCupSet modereg asm 1 command to set it on In the following example the ASM bit is shown as being off and then it is set to on switch admin ficoncupshow modereg POSC UAM ASM DCAM ACP HCP switch admin gt ficoncupset modereg ASM 1 Active Saved Mode bit is set to 1 FICON Administrator s Guide 53 1002154 01 Persistently enabling and disabling ports for CUP 5 Use the portEnable and portDisable commands to enable and disable ports as necessary The ports remain e
87. kage Trunking Fabric Watch Extended fabric license activation is required Gathering additional information In addition to the information you would collect for your support provider mentioned in the Fabric OS Troubleshooting and Diagnostics Guide also gather the following information which is specific to FICON e Is this case logged during an initial install or has this environment been working prior to the initial problem e What was changed immediately prior to the issue occurring e Is the switch properly configured for a FICON environment Also refer to the most recent version of the Fabric OS Release Notes for notes on FICON setup and configuration e sthis a switched point to point or cascaded environment e Is the FICON group enabled for supportshow Check at the top of the supportshow If not use supportShowCfgEnable ficon and re run the test that was failing NOTE If this setting is not set to port based routing on the Brocade 4100 4900 or 5000 switches and the Brocade 48000 director in a FICON fabric you will experience excessive interface control checks IFCCs on the mainframe whenever a blade or CP is hot plugged or unplugged Troubleshooting FICON CUP In addition to the information you would collect for your support provider mentioned Troubleshooting FICON on page 79 also gather the following information which is specific to FICON CUP e Capture all data from the General information to gather for all ca
88. l Mirror emulation One license must be used per unit or blade The 8Gbps platforms 7800 or FX8 24 use the following licenses FICON Administrator s Guide 53 1002154 01 Advanced FICON Acceleration FTR_AFA Allows interoperability for the following features and products Prizm FICON to ESCON converter and ESBT Bus Tag Interface Module for Prizm from Optica Technologies Inc Write and read tape pipelining Teradata emulation BM z OS Global Mirror emulation 43 44 4 FICON emulation overview The Advanced FICON Acceleration license contains the following options Capacity 1 Consumed 1 Configured Blade Slots 1 This is a slot based license for the FX8 24 and 7800 e Advanced Extension FTR_AE Required for multiple circuit tunnels FCIP Trunking Adaptive Rate Limiting and other FCIP features This is not required for FICON Acceleration features but multiple circuits would be used in a FICON emulation environment This is a slot based license for the FX8 24 and 7800 Capacity 1 Consumed 1 Configured Blade Slots 1 ATTENTION Use the licenseShow command to verify the licenses are installed on the hardware at both ends of the FCIP tunnel For slot based licenses use the licenseslotcfg show command to display all slot based licenses in a chassis IBM z OS Global Mirror emulation The IBM z OS Global Mirror emulation formerly eXtended Remote Copy or XRC application is a direct attached
89. message they are getting An IOS error message is reported when there is an error external to the host an IEE error message indicates something is wrong internal to the host Fabric Not Configured Properly e Make sure that the insistent domain ID is set and the domain IDs are unique for all switches in the fabric Make sure that the same binding method is used on all switches in the fabric e Scroll through the node list and make sure there are no invalid attachments Make sure that the re routing delay is turned off Cabling Validate that cables are connected where intended When using multimode fiber make sure that all fiber is either all 5Ou or all 62 5u A common mistake is to mix 5Ou and 62 5u fiber cables which causes errors at patch panels Example of a Boxed Channel In this example the customer complained that the CHPIDs with 2 byte addressing did not come online He was instructed to configure the CHPID offline and then try to configure the CHPID back online MVS console commands and responses lines beginning with IEE are responses and all other lines are entries CF CHP 60 OFFLINE IEE5031 CHP 60 OFFLINE IEE7121 CONFIG PROCESSING COMPLETE CF CHP 60 ONLINE IEE7541 NOT ALL PATHS BROUGHT ONLINE WITH CHP 60 IEE5021 CHP 60 ONLINE IEE7121 CONFIG PROCESSING COMPLETE The line below displays the status of the CHPID with the D M command All other lines are responses D M CHP 60 IEE1741
90. mmand to swap the ports Any port in the switch can be used as the alternate for any other port within the same switch 5 Re enable the ports using the portEnable command 6 Enter portSwapDisable to disable the command for port swapping Example of port swapping switch switch switch switch switch admin admin admin admin admin portswapenable portdisable slot portA slot portB portswap slot portA slot portB portenable slot portA slot portB portswapdisable e Slot is the slot number of the port blade for a system with port blades optional e portA is the original port number e portB is the alternate port number FICON Administrator s Guide 53 1002154 01 Blade swapping 5 You can use the portSwapShow command to display information about swapped ports in a switch You can use the portSwap command to disable the portswap feature You cannot use the portSwap command after this feature is disabled The enabled state of the portswap feature is persistent across reboots and power cycles Enabling and disabling the portswap feature does not affect previously executed portswap operations See the Fabric OS Command Reference for additional details about the portSwap command Blade swapping Blade swapping allows you to swap one blade with another of the same type in this way you can perform a FRU replacement with minimal traffic disruption The entire operation is accomplished when th
91. n It can be a computer host a device controller or a peripheral device such as a disk array or tape drive A node has a unique 64 bit identifier known as the Node Name The Node Name is typically used for management purposes Prohibit Dynamic Connectivity Mask PDCM and connectivity attributes PDCM controls whether or not communication between a pair of ports in the switch is prohibited Connectivity attributes control whether all the communication is blocked for a port Read Record Set RRS RRS is an IBM Channel initiated CCW command The Brocade s FCIP FICON Acceleration License allows the emulation of command chains that include this CCW command The command is used in IBM z OS Global Mirror configurations to read updates from a volume in an active mirroring session Registered Link Incident Report RLIR RLIR ELS provides a way for a node port to send an incident record to another node port Request Node Identification Data RNID RNID ELS acquires the associated node s identification data which provides configuration discovery and management purpose information Resource Measurement Facility RMF A monitoring function that gathers transaction data from the environment and generates performance reports All Level Il reports which include port statistics require CUP and FMS Keep RMF active in the system 24 hours a day and run it at a dispatching priority above that of other address spaces in the system If you do reports a
92. n most FICON environments only fencing the port and logging the alert are desired The following are the default thresholds e Low0O High 1 000 errors per minute FICON Administrator s Guide 53 1002154 01 FICON information You can display link incidents registered listeners node identification data and FRU failures as described in the following sections Link incidents FICON information 5 The registered link incident record RLIR ELS contains the link incident information sent to a listener N Port To display link incidents connect to the switch log in as user and enter one of the following commands For the local switch ficonShow rlir e For all switches defined in the fabric ficonShow rlir fabric Identifying ports The ficonShow rlir command displays among other information a tag field for the switch port You can use this tag to identify the port on which a FICON link incident occurred The tag field is a concatenation of the switch domain ID and port number in hexadecimal format The following example shows a link incident for the switch port at domain ID 120 port 93 785d in hex switch admin ficonshow Fmt Type PID Porc 0x18 F 7854800 93 Port Status Link Failure Type Registered Port WWN 50 05 07 64 01 40 16 03 50 05 07 64 00 c1 69 ca Type number Model number Manufacturer Plant of Manufacture Sequence Number tag Switch Port WWN 20 5d 00 60 69 80 45 7c 10 00
93. n this chapter epi OD OU VIBUM aula ise eh shied Genesi Hd lat idi Ra ea teas i te gal gba lada as d e uc i ll e TJOON GODOBDISA cada ed Cassese SOR RRRSA ROSA BEAR Ane BAUR d 4 9 pICOBAOUDEIEUGESIDR ca ei px Lt Pee eee ee Oma ga E dequo Re do 6 SPCC OSS COP oM PESE IM uoo ba ep dieci ata le acm SUME as a el x aan el i 8 FIGON COMMANGS a saa aeria px o EROR PEOCKEAUARCEE ORA ER EORR RESO 13 FICON overview IBM Fibre Connection FICON is an industry standard high speed input output 1 0 interface for mainframe connections to storage devices This guide discusses support offered by Fabric OS in intermix mode operations in which FICON and Fibre Channel technology work together For specific information about intermix mode and other aspects of FICON refer to the IBM Redbook FICON Implementation Guide SG24 6497 01 and Implementing an IBM Brocade SAN with 8 Gbps Directors and Switches SG24 6116 08 NOTE In this guide the term switch is used to refer to a Brocade switch director or backbone platform unless otherwise noted Fabric OS support for FICON The following Fabric OS standard features support FICON fabrics Blade swapping Allows you to swap a blade of the same type so that you can perform a FRU replacement with minimal traffic disruption This feature is available for both FICON and open system environments Blade swapping resolves situations in which the hardware has failed and the channel configurations cannot be ch
94. nabled or disabled after a switch reboot switch admin gt portenable 1 1 FICON Administrator s Guide 53 1002154 01 3 41 3 42 Persistently enabling and disabling ports for CUP FICON Administrator s Guide 53 1002154 01 Chapter Administering FICON Extension Services 4 In this chapter TICOR emulation RI Leu i ad msc ta x xe du mice n dc ke Re LX UR E Qn 43 e FCIP configuration requirements for FICON extension 48 e Configuration requirements for switches and directors 48 Configuring FICON Srila xix nx meR hmm REx ace nee el eee eal erre al 50 Moding FIGON embllelialt casas GE ROCA REOR AUCRAA E RRES S EEE 53 e Displaying FICON emulation performance statistics 53 FICON emulation overview FICON emulation supports FICON traffic over IP WANs using FCIP as the underlying protocol FICON emulation can be extended to support performance enhancements for specific applications through use of the following licensed features IBM z OS Global Mirror formerly eXtended Remote Copy or XRC FICON Tape Emulation tape read and write pipelining The 4Gbps FR4 18i blade uses the following licenses High Performance Extension over FCIP FC Allows creation of tunnels FICON Tape Allows FICON Tape emulation IBM z OS Global Mirror Allows FICON IBM z OS Global Mirror emulation Brocade Accelerator for FICON Enables both FICON tape emulation and IBM z OS Globa
95. nformation on interopmode and M Series switches FICON M Series connections interopmode McDATA fabric mode and McDATA open fabric mode are no longer supported Document conventions This section describes text formatting conventions and important notice formats used in this document Text formatting The narrative text formatting conventions that are used are as follows bold text italic text code text Identifies command names Identifies the names of user manipulated GUI elements Identifies keywords and operands Identifies text to enter at the GUI or CLI Provides emphasis Identifies variables Identifies paths and Internet addresses Identifies document titles Identifies CLI output Identifies command syntax examples For readability command names in the narrative portions of this guide are presented in mixed lettercase for example switchShow In actual examples command lettercase is often all lowercase Otherwise this manual specifically notes those cases in which a command is case sensitive Command syntax conventions Command syntax in this manual follows these conventions command option option argument arg variable value FICON Administrator s Guide 53 1002154 01 Commands are printed in bold Command options are printed in bold Arguments Optional element Variables are printed in italics In the help pages values are underlined or enclosed in angled brackets lt gt
96. nnel if 2 byte addressing has been previously used on that channel This is necessary even when the specified path is not cascaded Packets are being dropped between two FICON units Probable cause and recommended action When planning cable needs the following criteria must be considered Distance considerations Fiber Optics Sub Assembly FOSA type SW or LW Cable specifications SM or MM Patch Panel Connections between FOSA ports link loss 3 5 dB per Maximum allowable link budget dB loss From a cabling point of view the most important factor of a Fibre Channel link is the selection of the Fibre Optical Sub Assembly FOSA and matching cable type to support the required distance Both ends of the optical link must have the matching FOSA SFP types FICON Administrator s Guide 53 1002154 01 Symptom Common FICON issues 5 Channel path with 2 byte addressing does not come online Probable cause and recommended action Ask the operator what CHPID he is attempting to bring online In FICON environments only the egress ports are defined in the IOCDS The CHPID number of the channel appears in the node list but only if the channel path has logged in If the channel path will not come online it may not have completed a Fibre Channel fabric login If this is the case you will have to rely on customer documentation to determine what switch port the channel is connected to Next ask the operator what type of error
97. ns For more information on switch numbering refer to the IBM publication FICONG Implementation Guide SG24 6497 00 In the following sample IOCP configuration file the UNIT value for FICON CUP definitions is 2032 for any FICON director regardless of vendor or platform All Brocade switches require UNIT 2032 for the CUP definition All Domain IDs are specified in hex values in the IOCP and not in decimal values CNTLUNIT CUNUMBR 0D8 UNITADD 00 UNIT 2032 PATH 50 51 LINK 61FE 61FE IODEVICE ADDRESS 0D8 1 CUNUMBR 0D8 UNIT 2032 STADET Y UNITADD 00 CNTLUNIT CUNUMBR 0D9 UNITADD 00 UNIT 2032 PATH 8A 8B LINK 22FE 22FE IODEVICE ADDRESS 0D9 1 CUNUMBR 0D9 UNIT 2032 STADET Y UNITADD 00 CNTLUNIT CUNUMBR 0DB UNITADD 00 UNIT 2032 PATH 5A 5B LINK 25FE 25FE IODEVICE ADDRESS 0DB 1 CUNUMBR 0DB UNIT 2032 STADET Y UNITADD 00 Setting the mode register bits Consider the following when changing mode register bits e The UAM bit can only be set by host programming e All mode register bits except UAM are saved across power on off cycles the UAM bit is reset to O following a power on Mode register bits can be changed when the switch is offline or online If the ACP or HCP bits are changed when the switch is online they will take effect any time between the completion of the current command and the end of the CCW command chain or the next alternate manager operation 1 Conne
98. of SAN specific terms visit the Storage Networking Industry Association online dictionary at http www snia org education dictionary FICON Administrator s Guide 53 1002154 01 Notice to the reader This document may contain references to the trademarks of the following corporations These trademarks are the properties of their respective companies and corporations These references are made for informational purposes only Corporation Referenced Trademarks and Products International Business Machines Corp IBM FICON S 390 z OS zSeries Series z Redbooks z OS Global Mirror Teradata Corporation Teradata Optica Technologies Inc Prizm FICON to ESCON converter and ESBT Bus Tag Interface Module for Prizm Additional information This section lists additional Brocade and industry specific documentation that you might find helpful Brocade resources To get up to the minute information go to http my brocade com and register at no cost for a user ID and password For additional Brocade documentation visit the Brocade SAN Info Center and click the Resource Library location http www brocade com Release notes are available on the MyBrocade website and are also bundled with the Fabric OS firmware Other industry resources e White papers online demonstrations and data sheets are available through the Brocade website at http www brocade com products software jhtml e Best practice guides white papers
99. omiguring PICOM CUP LscchsibkegstPPPXORPOG IPSI EE RC RS RE o Configuring FICON CUP in Virtual Fabrics leere 32 Determining physical port assignment 0 000 c eee eee eee da FMS mode and FICON CUP iosccrpe up CERE RFEEETEER EY Ea 34 La Mode resister CIE ACTI PETERET TT TIT 37 e Setting the MIBHPTO VAG i sse EAR E XACEROORAGOR ERE Baas Rees 40 e Persistently enabling and disabling ports for CUP 05 40 Control Unit Port overview The Control Unit Port CUP provides an interface defined by IBM that defines the Channel Command Words CCW that the FICON host can use for managing the switch The protocol used is the IBM version of the ANSI FC SB3 single byte command code specification which defines the protocol used for transporting CCWs to the switch and for the switch to direct data and status back CUP is an optional licensed feature The CUP provides an interface for host in band management and collection of FICON director performance metrics using the RMF 74 7 record more commonly known as the FICON Director Activity Report Host based management programs manage the FICON directors and switches by sending commands to the switch Control Unit defined in the IOCDS and Hardware Configuration Definition HCD A FICON director or switch that supports CUP can be controlled by one or more host based management programs or director consoles Control of the FICON directors can be shared between these option
100. or of the switch with respect to CUP itself and with respect to the behavior of other management interfaces The mode register bits are described in Table 4 TABLE 4 FICON CUP mode register bits ACP Alternate control prohibited Because the Fabric OS CLI Web Tools and Brocade Network Advisor are considered to be switch consoles this bit has no effect on their operation Attempts to set CUP parameters through SNMP are denied when this bit is set on The default setting is 1 on ASM Active Saved mode When this bit is set on all CUP configuration parameters are persistent meaning that they will be saved in nonvolatile storage in the IPL file that is applied upon a cold reboot or a power cycle The default setting is 1 on DCAM Switch clock alert mode When this bit is set on a warning is issued when the date tsClockServer or tsTimeZone commands are entered to set the time and date on the switch The default setting is O off HCP Host control prohibited When this bit is set on the host is not allowed to set CUP parameters The default setting is O off POSC Programmed offline state control If the bit is set 1 the command from the host will set the switch offline If the bit is off O the command from the host will be rejected and the switch will not go offline The default setting is 1 on UAM User alert mode When this bit is set on a warning is issued when an action is attempted that will write CUP param
101. or the local switch or for the fabric if specified FICON Administrator s Guide 53 1002154 01 Chapter Administering FICON Fabrics 2 In this chapter User Security CONSIDGEFATIONS usse kh kak eb eae a biked EUR SIRE RR eel 15 Preparing aswiteh Tor FIGON a asus xe kECATERFRAYARSXATFERXMURERGKGA RES 17 e Configuring switched point to point FICON lssseleseesenns 18 Conhiguring cascaded PIGON 1 2 uecuaceusscc amc ern S xam acre canes x Rid 21 FICON and FICON CUP in Virtual FADICE as caaxacares reap ere RR ER 22 Clearing the FICON management database 0 0 0 0c eee eee 24 User security considerations To administer FICON you must have one of the following roles associated with your login name on the switch e Admin e Operator e SwitchAdmin FabricAdmin The User and BasicSwitchAdmin roles are view only The ZoneAdmin and SecurityAdmin roles have no access In an Admin Domain aware fabric if you use the FICON commands ficonShow ficonClear ficonCupShow and ficonCupSet for any Admin Domain other than ADO and AD255 the current switch must be a member of that Admin Domain The output is not filtered based on the Admin Domain Meeting Query Security Attribute requirements In a cascaded switch configuration FICON channels use a Query Security Attributes ELS QSA function to determine whether they are connected to a high integrity fabric When a FICON channel is connected to a fabric that
102. orage systems constantly synchronize between the two storage sites FICON Administrator s Guide 53 1002154 01 Traffic Isolation Zoning 5 Channel Flow A N Flow B CU A CUB FIGURE 14 Typical triangular setup During normal operation the routes from any device on one director are a one hop path to either of the other two directors However if the path between any pair of directors fails then a two hop path is available Multi hop paths are not certified for FICON configurations To get around the multiple hop issue use Enhanced TI Zoning to prohibit the connection between E Ports on the directors For this setup you must define a device in two zones with failover disabled Figure 15 shows that the setup allows a source device to reach two separate destinations over exclusive one hop paths while preventing the source device from taking the two hop path in the event of a failure FICON Administrator s Guide 65 53 1002154 01 66 Traffic Isolation Zoning Channel Flow A FIGURE 15 Triangular topology with Enhanced TI Zones Figure 15 shows the following TI Zone definitions for the triangular topology e Blue Zone includes the channel ISL 1 and CU A e Green Zone includes the channel ISL 2 and CU B e Red Zone includes the CU A ISL 3 and CU B Using these definitions with failover disabled the topology achieves the desired behavior The channel can reach CU A only over ISL 1 and CU B only over ISL 2 If ei
103. rations for tape devices for archival purposes they are addressed first FICON Administrator s Guide 45 53 1002154 01 4 46 FICON emulation overview Tape Write Pipelining FICON Tape Write Pipelining refer to Figure 11 improves performance for a variety of applications when writing to tape over extended distances FICON Tape Write Pipelining locally acknowledges write data records enabling the host to generate more records while previous records are in transit across the IP WAN If an exception status is received from the device the writing of data and emulation is terminated System z Virtual Tape hosts Brocade Brocade Controller FICON extension blade extension switch Tape Director s with emulation with emulation Library for FICON for FICON Local acknowledgements 1 1 L 1 L 1 1 1 1 1 I 1 L L L 1 1 1 1 1 1 1 l l I Li l 1 1 1 1 1 1 1 L l Li 1 Write sequences are pre acknowledged 1 1 1 1 l 1 L 1 L 1 1 1 1 1 1 1 I l l L to host and data is continuously sent to the network Final ending status is presented to host FIGURE 11 Tape Write Pipelining Tape Read Pipelining Write data is streamed to remote device lt Final ending status is returned to local device P network N p Write commands h Local acknowledgement Write channel programs are presented to the tape device FICON Tape Read Pipelining Figure 12 on page 4
104. rator s Guide 58 1002154 01 FICON overview 1 Platforms supporting FICON FICON protocol is supported on the following Brocade models for this release e Brocade DCX and DCX 4S Backbones FC8 16 and FC8 32 port blades FR4 18i and FX8 24 FCIP blades and the FC10 6 10 Gbps port blade for ISL connections The DCX the FC8 48 blade is only supported in a logical switch defined for zero based addressing e Brocade 5100 and 5300 switches e Brocade 6510 switch e The Brocade 7800 Extension Switch and the Brocade FR4 18i for the Brocade DCX and DCX 4S and FX8 24 blade for the Brocade DCX and DCX 4S provide FICON over IP extension The following port blades are not supported in a FICON environment unless otherwise noted e FCOE10 24 e FS8 18 e 6FC4 48 e Inthe DCX the FC8 48 blade is only supported in a logical switch defined for zero based addressing e FC8 64 In an Admin Domain enabled fabric you should put all of the ports on the FC8 48 and FC8 64 blades in an Admin Domain other than the one used for FICON ports The ports on these blades should not belong to the zone in which FICON devices are present In all switches and directors that have FICON devices attached or where FICON traffic will be carried the port based routing policy is required set aptPolicy option 1 Exchange based routing set aptPolicy option 3 is only supported when Lossless is specified It is recommended that you enable Lossless regardless of
105. re written at the requested intervals and other work is not delayed because of locks held by RMF 1 FICON configurations e Systems Operations SysOps SysOps provides the ability to monitor and control all subsystems in a sysplex from any system in the sysplex This includes controlled startup controlled shutdown and automated recovery of software resources e Sysplex In IBM mainframe computers a Systems Complex commonly called a sysplex allows multiple processors to be joined into a single unit sharing the same sysplex name and Couple Data Sets FICON configurations There are two types of FICON configurations that are supported using Brocade Fabric OS switched point to point and cascaded topologies Switched point to point A single switch configuration is called switched point to point and requires that the channel is configured to use single byte addressing If the channel is set up for 2 byte addressing then the cascaded configuration setup applies Figure 2 illustrates an example of the switched point to point configuration FICON CU FC Switch FICON CU FC FIGURE 2 Switched point to point FICON 6 FICON Administrator s Guide 53 1002154 01 FICON Administrator s Guide 53 1002154 01 FICON configurations 1 Cascaded FICON Cascaded FICON refers to an implementation of FICON that involves one or more FICON channel paths defined over two FICON switches connected to each other using an Inter S
106. required PTFS MCLs to support 2 byte link addressing DRV3g and MCL 711206 or later is required e The high integrity fabric feature for the FICON switch must be installed on all switches involved in the cascaded architecture 1 Access control in FICON Figure 4 and Figure 5 show two cascaded configurations These configurations require Channel A to be configured for 2 byte addressing and require IDID and fabric binding It is recommended that there be only two domains in a path from a FICON Channel interface to a FICON Control Unit interface There are exceptions to the two domain rule when extended fabric solutions are deployed Control Channel Switch Switch Unit A Domain ID 21 Domain ID 22 B FIGURE 4 Cascaded configuration two switches 7 7 Control Channel Switch Switch Unit A Domain ID 21 Domain ID 7 22 C Switch Eos Domain ID 23 D FIGURE 5 Cascaded configuration three switches Access control in FICON Zoning is used to control access in a FICON environment A zone consists of a group of ports or WWNs Connectivity is permitted only between connections to the switch that are in the same zone There are three types of zoning WWN port and domain index zoning A zone configuration includes at least one zone In open systems environments and in more complex FICON deployments the zone configuration contains multiple zones
107. rmance Multi hop paths are not certified for FICON configurations Occasionally bad optics and cables can cause errors to occur at a rapid rate that error processing and sending and processing RSCNs can cause fabric performance problems Port fencing allows the user to limit the number of errors a port can receive by forcing a port offline when certain error thresholds are met The port fencing feature is configured through Fabric Watch For more information on configuring Port Fencing refer to the Fabric Watch Administrator s Guide Defining port fencing 1 Optional Clear all alarms 2 Define threshold levels 3 Define alarm action 4 Activate alarming NOTE Establish a Telnet session with a tool such as Putty that allows the columns to be increased This is because some of the displays use more than the standard 80 columns that programs such as HyperTerminal support Recommended number of columns is 120 Settings for FICON environments For typical FICON environments port fencing is usually only set for CRC errors and Invalid Words The default of 1 000 errors per minute is a little high for CRC errors and Invalid Words A more common setting is 50 errors per minute This is high enough to ignore occasional errors and transient errors due to re cabling but low enough to stop problematic optics from causing fabric issues By default the alarms are set to fence the port log an alert send an e mail and set an SNMP trap I
108. s There are 39 CUP commands or CCWs for monitoring and control of the FICON director functions CUP commands are oriented towards management of a single Switch even though the use of CUP in a cascaded FICON environment is fully supported NOTE The CUP port address will always be xxFExx Port Addresses xxFE and xxFF are unavailable to assign to physical ports when FMS is enabled FICON Administrator s Guide 27 53 1002154 01 3 28 Control Unit Port overview FICON director FICON director System Automation Embedded OS390 application port l 0 CPs FICON Switch Embedded port Management Application Server FIGURE 9 FICON CUP Figure 9 is a simplified representation of a FICON environment and how CUP fits into that environment FICON directors with FMS enabled use port address FE as the embedded internal port for host connectivity to the CUP and port address FF is reserved Therefore addresses FE and FF cannot be used for assignment to physical ports when FMS is enabled If physical ports have been assigned addresses FE or FF by default prior to enabling FMS they will be automatically disabled when FMS is enabled If there are active devices connected to the ports then the ports must first be disabled manually in order to enable FMS Because these ports are not available after enabling FMS mode you should first move any fiber connected to either of them to another free port On logical swit
109. s or directors with different domain IDs be aware of IBM requirements for high integrity fabrics e n configurations with ISLs ensure that ISL paths are properly configured to meet FICON emulation requirements for a determinate path for FICON commands and responses e When running FICON emulation features over an FCIP tunnel it is highly recommended that both switches providing the FCIP tunnel are using the same Fabric OS release level High integrity fabric requirements for cascaded configurations You can use extended FICON connections between or through Brocade 7800 Extension Switches or the FR4 18i or FX8 24 blade to create a cascaded FICON switched configuration The fabric must be set up to provide a secure or high integrity fabric to enable this configuration to operate in an IBM environment See Chapter 2 Administering FICON Fabrics for an explanation of these requirements FICON emulation requirement for a determinate path FICON emulation processing creates FICON commands and responses on extended CHPIDs and intercepts all exchanges between a channel and a CU For FICON Emulation processing to function correctly all the exchanges between a channel and CU must take a single tunnel path There are two ways to ensure a determinate path for FICON commands and responses e Define only one FCIP tunnel between sites FICON Administrator s Guide 53 1002154 01 Configuration requirements for switches and directors 4 e Use
110. ses on page 79 e Verify the FICON CUP license is installed e Check the state of the CUP port by running the ficonCupShow fmsmode command If it is disabled type the ficonCupSet f msmode enable command to enable it If this is on a directory enter the haFailover command to ensure both CPs are set correctly Verify that the director has a Fabric OS v6 1 0 or later Ensure no device is plugged into port 254 on the Brocade 48000 or Brocade DCX enterprise class platform Verify with the systems programmer that the CUP ports are defined properly FICON ports are defined as part of the sysgen process The z OS systems programmer can verify if the CUP ports are defined properly FICON Administrator s Guide 81 53 1002154 01 5 Troubleshooting NPIV Verify the ports 254 and 255 display the Disabled FMS Mode by entering the switchShow command If not enter the portDisable command on the appropriate models for the related ports On a Brocade 48000 disable 10 30 and 10 31 Ona Brocade DCX Backbone disable 12 30 and 12 31 Troubleshooting NPIV 82 You should capture all pertinent data from the General information to gather for all cases on page 79 and Gathering additional information on page 81 NPIV licenses must be installed on v5 0 x There is no license requirement for Fabric OS v5 1 0 and later FICON Administrator s Guide 53 1002154 01 Configuration Information Record Appendix A You
111. ssion on the FCIP tunnel Configure FICON emulation on the tunnel that is solution specific If you have more than one tunnel being configured take the following actions e If there is more then one tunnel to the same destination and their tunnel commit rates are different configure the link cost values the same e Configure TI Zones ensuring that if there are multiple E Ports of different link costs from one switch to another switch within TI Zones configure the link cost values to be the same FICON Administrator s Guide 53 1002154 01 Configuring FICON emulation 4 Configuring emulation on the FR4 18i blade The following example shows FICON emulation on ge1 over tunnel ID O with FICON IBM z OS Global Mirror emulation tape write pipelining tape read pipelining TIN TIR and device level ACK emulation enabled The default values are assumed for wrtMaxPipe wrtMaxDev wrtTimer and wrtMaxChains An oxidbase value of 0x7000 is specified switch admin gt portcfg ficon gel 0 config x 1 w 1 r 1 t 1 1 1 oxidbase 0x7000 Configuring emulation on the 7800 switch and FX8 24 blade The following example shows FICON emulation for VE Port 23 on a 7800 extension switch with Teradata read Teradata write printer emulation tape write pipelining tape read pipelining TIN TIR and device level ACK emulation enabled The default values are assumed for max read pipe max write pipe write timer and write chain An oxidbase value of Ox7000 is
112. t across an IP WAN Updates to the primary disk volumes are completed by the production applications and then staged in control unit cache to be read by the SDM SDM then writes the updates to the secondary volumes The latency introduced by greater distance creates delays in anticipated responses to certain commands The FICON pacing mechanism may interpret delays as an indication of a large data transfer that could monopolize a shared resource and react by throttling the 1 0 IBM z OS Global Mirror emulation provides local responses to remote hosts eliminating distance related delays You can use the Brocade 7800 an FR4 18i or an FX8 24 blade with FICON emulation Tape emulation Tape emulation also called tape pipelining refers to the concept of maintaining a series of I O operations across a host WAN device environment and should not be confused with the normal FICON streaming of CCWs and data in a single command chain Normally tape access methods can be expected to read data sequentially until they reach the end of file delimiters tape marks or to write data sequentially until either the data set is closed or an end of tape condition occurs multi volume file The emulation design strategy attempts to optimize performance for sequential reads and writes while accommodating any other non conforming conditions in a lower performance non emulating frame shuttle Since write operations can be expected to comprise the larger percentage of I O ope
113. tabase 24 clearing the RLIR database 13 configuration file fmsmode 63 restoring in a FICON environment 62 configuring switch single 17 Control Unit Port cannot access the switch 78 creating the SCC policy 16 CUP 13 27 D disabling IDID mode 13 disabling the management server mode 13 displaying information 71 DLS 79 domain ID insistent 2 Dynamic Load Sharing 79 E enabling IDID mode 13 FICON Administrator s Guide 53 1002154 01 extension configuration requirements 48 DASD application 44 determinate path 48 emulation 50 emulation concepts 43 emulation configuration values 51 emulation monitoring 53 FCIP tunnels 48 performance 53 Traffic Isolation zoning 49 F fabric binding 11 Fibre Channel Association xi FICON CUP 13 27 FMS mode disabling 35 displaying 35 enabling 35 OxFE and OxFF addresses 36 setting up FICON CUP 35 upgrade considerations 36 FRU failures 72 G gathering additional information 79 81 Global Mirror emulation 44 IBM z OS Global Mirror emulation 44 identifying ports from the tag field 71 IDID 2 insistent domain ID 2 intermix mode 1 invalid attachment isolated state 15 87 L link incidents 14 link incidents displaying 14 71 LIRR 14 M mainframe RMF utility 78 meeting QSA requirements 15 N node identification data 72 node identification display 14 0 Optica Prizm support 47 OxFE and OxFF addresses for
114. tate Proto 255 12 28 OlfcO0 N8 No Module Disabled FICON Administrator s Guide 33 53 1002154 01 3 FMS mode and FICON CUP 253 12 29 01fd00 N8 No Module Disabled switch FID2 admin portaddress findpid 01fc00 Index Slot Port ID 252 12 28 Ox lfc00 FMS mode and FICON CUP 34 For Fabric OS 7 0 and later a FICON CUP license is required to enable FMS mode The FMS mode setting can be changed whether the switch is disabled or enabled If FMS mode is changed while the switch is enabled a device reset is performed for the control device and an RSCN is generated with PID OXDDFEOO where OxDD is the domain ID of the switch When FMS mode is enabled the following Fabric OS commands return a switch busy response if they are issued when the host based management application is performing a write operation This serialization prevents interference from out of band management applications when a host based management program is being used to administer the switch bladeDisable bladeDisable bladeEnable bladeEnable portDisable switchCfgPersistentDisable portEnable switchDisable portName switchEnable portShow switchName portSwap switchShow NOTE You cannot use the portCfgPersistentEnable and portCfgPersistentDisable commands to persistently enable and disable ports when FMS mode is on See the procedure Persistently enabling and disabling ports for CUP on page 40 for instructions Changing FMS mode from
115. the IPL file the port becomes persistently disabled The port displays as persistently disabled through the portCfgPersistentDisable command but is blocked in the IPL file e If the ASM bit is off and the port is blocked in the IPL file the port will become persistently disabled The port displays as persistently disabled through the portCfgPersistentDisable command and remains blocked in the IPL file e If the ASM bit is off and the port is unblocked in the IPL file the port will become persistently disabled The port does not display as persistently disabled through the portCfgPersistentDisable command and remains unblocked in the IPL file Clearing the FICON management database Perform the following steps to clear RLIR and RNID records from the FICON management database 1 Connectto the switch and log in as admin 2 Enter ficonClear rlir to remove all the RLIR records from the local RLIR database 24 FICON Administrator s Guide 53 1002154 01 Clearing the FICON management database 2 3 Enter ficonClear rnid to remove all the RNID records marked not current from the local RNID database FICON Administrator s Guide 25 53 1002154 01 26 2 Clearing the FICON management database FICON Administrator s Guide 53 1002154 01 Chapter Configuring FICON CUP 3 In this chapter SEA UNITRON Ea sr ead Rara nr Recent e eR nica a d bc a Zt Port arid switch naming standards for FMS 2s asassksarkR rr RE Rune 30 e C
116. the routing policy Latency guideline The maximum allowable network round trip latency is typically 200 ms This is application dependent and for some applications it may be lower For synchronous mirroring applications the maximum latency is typically less than 10 ms These values are to maintain data throughput performance However many synchronous applications can run in asynchronous mode allowing more than one outstanding I O per transaction Packet loss guideline The end to end network should maintain less than 1 percent packet loss for optimum performance Performance degradation is exponential as packet loss increases above 1 percent It is highly recommended that you obtain an Service Level Agreement SLA with your network provider that reflects this requirement Storage application guideline Storage applications will operate more efficiently if they are tuned to match the outstanding amount of data to the characteristics of the IP connection such that there is always data being transmitted Generally speaking with higher latency and higher bandwidth more data can exist in the WAN network 1 FICON concepts FICON concepts Figure 1 shows how the traffic in a switched point to point configuration flows in a FICON environment The logical path of the traffic is defined as frames moving from the channel to the switch to the control unit FICON traffic moves from a logical partition LPR and through the channel through a Fi
117. ther ISL should fail connectivity to the destination with the failed ISL is prevented because the exclusive path has failed System Data Mover topology Figure 16 shows a cascaded topology which can be used to support an operations recovery site In this environment host and storage systems exist at both sites which are connected by two directors cascaded together using the System Data Mover SDM application The storage differs between the sites In the production site the storage is DASD to support fast access for production applications In the backup site the storage is tape to support archival operations for system restoration FICON Administrator s Guide 53 1002154 01 Traffic Isolation Zoning 5 Production Backup Site Site FIGURE 16 Typical System Data Mover topology The host in the production site operates the SDM application that reads data from the DASD and writes it to the remote tape The path to the remote site is required to be isolated to support the bandwidth requirements needed to write the data to the remote tape The host in the backup site needs access to the DASD in the production site to support a hot recovery scenario in the event the production host goes down Supporting these two functions requires the ability to define overlapping zones that isolate the tape traffic from the DASD traffic and allow local access to the DASD ports FICON Administrator s Guide 67 53 1002154 01 5 Traffic Isolation Zonin
118. thermore CHPIDs 79 and 7A can only connect to the backup tape at the Backup Site NOTE Zoning does not replace the need to set up the connectivity from the host to storage control units in the HCD or IOCP For more information on zoning refer to the Fabric OS Administrator s Guide 1 Access control in FICON Hosts and CUs Hosts and CUs Director Director 1 Hosts and nah Zone B Director 2 Director 12 Hosts and CUs Primary Site FIGURE 7 Complex cascaded zoning Backup Site Blue Zone A Any CHPID connected to Director 1 except CHPID 79 can get to any control unit connected to Director 1 The zone includes all ports in Director 1 except ports 4 5 and 6 Orange Zone B Any CHPID connected to Director 2 except CHPID 7A can get to any control unit connected to Director 2 The zone includes all ports in Director 2 except ports 4 5 and 6 Green Zone C Any CHPID connected to Director 11 can get to any control unit connected to Director 11 The zone includes all ports in Director 11 except ports 5 and 6 Adding ports 5 and 6 to the zone so that all ports in the director are in the same zone would not affect permitted connectivity and may be a more practical alternative Yellow Zone D Any CHPID connected to Director 12 can get to any control unit connected to Director 12 The zone includes all ports in Director 12 except ports 5 and 6 which are used for ISLs Red Zone
119. this command to bind the 16 bit address to the lower two bytes of a port 24 bit Fibre Channel address switch admin gt portaddress bind slot port 16 bit PID auto Refer to the Fabric OS Command Reference Manual for details on this command NOTE The portAddress bind command is not supported with the portSwap command The auto option enables autobinding on the specified port If the auto feature is enabled the area field of the PID address is bound to a single port Only the high order 8 bits of the 16 bit area field in the PID address specified in the portAddress command are used Following is an example using this command switch admin portaddress bind 12 28 0200 auto This command results in a port that displays as the following Index Slot Port Address 252 r2 28 3e0200 Port addresses that have not been assigned to a logical switch will appear as uninstalled in the PIB s Port Descriptor Changing the addressing mode Changing the addressing mode can have serious implications for the FICON user After changing the addressing mode the following actions occur e Physical ports can receive new area assignments e Port addresses that are referenced in an IOCDS gen can be associated with entirely new physical ports FICON Administrator s Guide 23 53 1002154 01 2 Clearing the FICON management database To change the addressing mode use the following procedure NOTE To access all parameters con
120. to another free port CUP configuration recommendations The following are recommendations for setting up FICON CUP FICON Administrator s Guide 53 1002154 01 Device Type 2032 Although IBM has developed new machine types for the switches and directors all directors and switches regardless of model or manufacture should be configured as 2032 Paths Define at least two CHPIDs as paths to the CUP in the IOCDS Control Unit statement for the switch to ensure redundancy for host connectivity RMF 74 7 statistics gathering 29 3 Port and switch naming standards for FMS So as not to overwhelm the CUP the recommended best practice in a sysplex environment is to disable FICON switch statistics RMF polling on all but one host system that has inband access to the CUP If no FICON statement is specified the system will gather switch statistics by default so FICON switch statistics should be disabled on all but the system intended to gather statistics Missing Interrupt Handler MIH Set the MIHPTO to three minutes 180 seconds FICON CUP zoning and PDCM considerations The FICON PDCMs control whether or not communication between a pairs ports in the switch is prohibited or allowed PDCMs are a per port construct Each port on the switch has its own PDCM that defines whether communication is allowed between that particular port and each of the other ports in the switch including itself The Allow Prohibit Matrix presents a m
121. trol unit and the device The I O Configuration Data Set IOCDS defines the channels control units and devices to the designated logical partitions LPARs within the server this is defined using the Input Output Configuration Program IOCP The IOCP statements are typically built using the hardware configuration definition HCD The interactive dialog is used to generate your Input Output Definition File IODF invoke the IOCP program and subsequently build your production IOCDS Each FICON director in a fabric must have a unique domain ID and a unique switch ID The switch ID used in the IOCP definitions can be any value between x 00 to x FF The domain ID range for directors is hex x O1 to XEF or decimal 1 to 239 When defining the switch IDs in the IOCP definitions ensure that you use values within the FICON director s range FICON Administrator s Guide 53 1002154 01 Mode register bit settings 3 The switch ID has to be assigned by the user and must be unique within the scope of the definitions IOCP and HCD The domain ID is assigned by the manufacturer and can be customized to a different value It must be unique within the fabric Brocade recommends that the switch ID in IOCP or HCD be set to the same value as the domain ID of the FICON director which is defined to the FICON director at installation time This simplifies the configuration and reduces confusion by having a common designation across all definitio
122. trolled by the configure command you must disable the switch Any configuration change to a logical switch that requires disabling the switch also requires disabling FMS mode 1 Disable FMS mode using the ficonCupSet fmsmode disable command 2 Disable the switch using the switchDisable command 3 Change the address mode using the configure command The configure command runs in interactive mode and presents you with a series of hierarchical menus To change the address mode select the Fabric parameters menu then select the Enable a 256 Area Limit field and enter appropriate option values Refer to the Fabric OS Command Reference Manual for details 4 Enable the switch using the switchEnable command 5 Enable FMS mode using the ficonCupSet fmsmode enable command For more information on these Fabric OS commands refer to the Fabric OS Administrator s Guide Moving ports to a logical switch Ports moved into a logical switch will have the following states based on the Active Saved ASM bit setting NOTE You cannot issue the portCfgPersistentDisable command if FMS mode is enabled When FMS mode is enabled use the portDisable command e If the ASM bit is on and the port is blocked in the internal program load IPL file the port becomes persistently disabled The port displays as persistently disabled through the portCfgPersistentDisable command and remains blocked in the IPL file e fthe ASM bit is on and the port is unblocked in
123. ulated Write CCWs Average Emulated Writes Blocksize Average Writes in Emulated Chains Write emulation slowdowns Slowdowns at Start of Chain Slowdowns at End of chain Single Chain Emulation Counter Write Paced Count Current Host side Write FDCB Count Max Concurrent Write FDCB Count Current Write Limited FDCB Count Tera Read Emulation Statistical Counts decimal Total number of emulated Read Bytes Total number of emulated Read Chains Total number of emulated Read CCWs Average Emulated Bytes per chain Average Emulated Read Blocksize Average CCWs in Emulated Chains Read Block Paced Count Read Not Ready Situations Count Current Read FDCBs Count Max Concurrent Read FDCB Count Current Read Limited FDCB Count FICON Debug Flags ftrace and others Bit 31 0x80000000 1 TRIGGER O Bit 30 0x40000000 1 TRIGGER O Bit 29 0x20000000 1 TRIGGER_O Bit 28 0x10000000 1 TRIGGER_O Bit 27 0x08000000 0 TRIGGER_O Bit 26 0x04000000 1 TRIGGER_O Bit 25 0x02000000 1 TRIGGER_O Bit 24 0x01000000 1 TRIGGER_O Bit 23 0x00800000 1 TRIGGER_O Bit 22 0x00400000 1 TRIGGER_O Bit 21 0x00200000 0 TRIGGER_O Bit 20 0x00100000 0 TRIGGER_O Bit 19 0x00080000 1 D Bit 18 0x00040000 0 TRIGGER_O Bit 17 0x00020000 0 TRIGGER_O Bit 16 0x00010000 1 TRIGGER_O Bit 15 0x00008000 0 TRIGGER_O Bit 4 0x00000010 0 FICON Administrator s Guide 53 1002154 01 1768 1405952 43936 4
124. which open source software is included in Brocade products view the licensing terms applicable to the open source software and obtain a copy of the programming source code please visit http www brocade com support oscd Brocade Communications Systems Incorporated Corporate and Latin American Headquarters Brocade Communications Systems Inc 130 Holger Way San Jose CA 95134 Tel 1 408 333 8000 Fax 1 408 333 8101 E mail info brocade com European Headquarters Brocade Communications Switzerland S rl Centre Swissair Tour B 4 me tage 29 Route de l A roport Case Postale 105 CH 1215 Gen ve 15 Switzerland Tel 41 22 799 5640 Fax 41 22 799 5641 E mail emea info brocade com Document History Asia Pacific Headquarters Brocade Communications Systems China HK Ltd No 1 Guanghua Road Chao Yang District Units 2718 and 2818 Beijing 100020 China Tel 8610 6588 8888 Fax 8610 6588 9999 E mail china info brocade com Asia Pacific Headquarters Brocade Communications Systems Co Ltd Shenzhen WFOE Citic Plaza No 233 Tian He Road North Unit 1308 13th Floor Guangzhou China Tel 8620 3891 2000 Fax 8620 3891 2111 E mail china info brocade com Title Publication number Summary of changes Date FICON Administrator s Guide 53 1001348 01 New document July 2009 FICON Administrator s Guide 53 1001771 01 Updated document to March 2010 include new features used with FI
125. witch Link ISL The processor interface is connected to one switch while the storage interface is connected to the other This configuration is supported for both disk and tape with multiple processors disk subsystems and tape subsystems sharing the ISLs between the directors Multiple ISLs between the directors are also supported Cascading between a director and a switch from a Brocade DCX enterprise class platform to a Brocade 5100 for example is also supported A cascaded configuration Figure 3 requires a list of authorized switches This authorization feature called fabric binding is available through the Secure Access Control List feature The fabric binding policy allows a predefined list of switches domains to exist in the fabric and prevents other switches from joining the fabric This type of configuration is described in User security considerations on page 15 FICON CU FC Switch FC Switch FICON CU FIGURE 3 Cascaded FICON There are hardware and software requirements specific to cascaded FICON e The FICON directors themselves must be from the same vendor that is both should be from Brocade e The mainframes must be zSeries machines or System z processors z196 z800 890 900 990 z9 BC z9 EC z10 BC and EC Cascaded FICON requires 64 bit architecture to support the 2 byte addressing scheme Cascaded FICON is not supported on 9672 G5 G6 mainframes e Z OS version 1 4 or later or z OS version 1 3 with
126. y no n no y Domain 1 239 97 E_D_TOV 1000 5000 2000 WAN_TOV 0 30000 0 AX HOPS 7 19 7 Data field size 256 2112 2112 Sequence Level Switching 0 1 0 Disable Device Probing 0 1 0 1 R A TOV 4000 120000 10000 Suppress Class F Traffic 0 1 0 Per frame Route Priority 0 1 0 Long Distance Fabric 0 1 0 BB credit 1 27 16 Insistent Domain ID Mode yes y no n yes lt this should be set to y output truncated Unable to vary online FICON CUP port on the switch Probable cause and recommended action Use the haFailover command on an enterprise class chassis This the only known fix as there is no known firmware solution Mainframe RMF utility fails to capture performance data Probable cause and recommended action In Fabric OS v6 0 0 Brocade switches do not fully implement all CUP commands needed to collect all performance data on a switch Upgrade your switch to Fabric OS v6 1 0 where the performance data is captured FICON Administrator s Guide 53 1002154 01 Troubleshooting FICON 5 Troubleshooting FICON This section provides information gathering and troubleshooting techniques necessary to fix your problem General information to gather for all cases The following information needs to be gathered for all FICON setups The output from the standard support commands portLogDump supportSave supportShow the Fabric Manag
127. ying FICON emulation FICON emulation may be enabled on a per FCIP tunnel basis For the FR4 18i blade use the portCfg ficon modify command to make modifications to the feature For the Brocade 7800 switch and FX8 24 blade use the portCfg fciptunnel command For details on command usage refer to the Fabric OS Command Reference An CAUTION You will need to bring the FCIP tunnel down in order to make changes This process is disruptive to all traffic on the tunnel 1 Connect to the switches at both ends of the FCIP tunnel and log in using an account assigned to the admin role Disable the FCIP tunnel at both ends where the FICON emulation feature is enabled Use the command appropriate for your switch or blade model e For the Brocade FR4 18i use the portCfg ficon modify command e For the Brocade 7800 switch or FX8 24 use the portCfg fciptunnel modify command Make matching FICON emulation changes to both ends of the tunnel Enable the FCIP tunnel Displaying FICON emulation performance statistics You can use the portShow command to view the performance statistics and monitor the behavior of FICON emulation You do not need to disable any feature to display statistics 1 Connect to the switch and log in using an account assigned to the admin role 2 Enter the portShow ficon command to display the statistics for the FR4 18i blade Enter portShow extun command to display statistics for the 7800 switch or FX8 24 blade Re
128. yption Switch On the switch ID pull out tab located inside the chassis on the port side on the left e Brocade 5410 M5424 5450 5460 5470 5480 Serial number label attached to the module e Brocade DCX On the bottom right on the port side of the chassis Brocade DCX 4S On the bottom right on the port side of the chassis directly above the cable management comb World Wide Name WWN Use the licenselDShow command to display the switch WWN If you cannot use the licenselDShow command because the switch is inoperable you can get the WWN from the same place as the serial number except for the Brocade DCX For the Brocade DCX access the numbers on the WWN cards by removing the Brocade logo plate at the top of the nonport side of the chassis FICON Administrator s Guide 53 1002154 01 Document feedback Quality is our first concern at Brocade and we have made every effort to ensure the accuracy and completeness of this document However if you find an error or an omission or you think that a topic needs further development we want to hear from you Forward your feedback to documentation brocade com Provide the title and version number of the document and as much detail as possible about your comment including the topic heading and page number and your suggestions for improvement FICON Administrator s Guide xiii 53 1002154 01 xiv FICON Administrator s Guide 53 1002154 01 Chapter Introducing FICON 1 I

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