Sun StorEdge Network Data REplicator 3.0 Installation Guide
Contents
1. Execute the validation script probe_script described in To Run the Sun StorEdge Validation Script on page 12 Remove any related patches Remove Sun FWC Version 2 0 Management Services software Remove the Sun FWC Version 2 0 software Remove the Sun StorEdge Core Services Version 2 0 software packages Remove the Sun StorEdge Java and Management Services 2 0 software packages ce dov Sea Install the Sun StorEdge Core Services if needed and SUNWnvm Version 3 0 software packages 9 Reboot your server The etc opt SUNWscm sd cf Configuration File The Sun StorEdge Core Services software installation process converts the information in the Sun FWC Version 2 0 configuration file etc opt SUNWscm sd cf and adds it to the Sun StorEdge data services Version 3 0 configuration The storage device cache is then enabled with the parameters that were specified in the sd cf file Appendix A Sun StorEdge Fast Write Cache Software 33 34 Removing the Sun FWC Version 2 0 Software Note The probe_script described in To Run the Sun StorEdge Validation Script on page 12 lists the packages you must remove before upgrading and the order in which to remove them when you use pkgrm 1M You must remove the packages in the order listed When uninstalling the order in which you remove packages matters Note You might have already removed the Core and Management Services software and patches if you upgraded2. caract res est prot g par un copyright et licenci par des fournisseurs de Sun Des parties de ce produit pourront tre d riv es des syst mes Berkeley BSD licenci s par l Universit de Californie UNIX est une marque d pos e aux Etats Unis et dans d autres pays et licenci e exclusivement par X Open Company Ltd Sun Sun Microsystems le logo Sun AnswerBook2 docs sun com Sun StorEdge SunATM Sun Enterprise et Solaris sont des marques de fabrique ou des marques d pos es ou marques de service de Sun Microsystems Inc aux Etats Unis et dans d autres pays Toutes les marques SPARC sont utilis es sous licence et sont des marques de fabrique ou des marques d pos es de SPARC International Inc aux Etats Unis et dans d autres pays Les produits portant les marques SPARC sont bas s sur une architecture d velopp e par Sun Microsystems Inc L interface d utilisation graphique OPEN LOOK et Sun a t d velopp e par Sun Microsystems Inc pour ses utilisateurs et licenci s Sun reconna t les efforts de pionniers de Xerox pour la recherche et le d veloppement du concept des interfaces d utilisation visuelle ou graphique pour l industrie de l informatique Sun d tient une licence non exclusive de Xerox sur l interface d utilisation graphique Xerox cette licence couvrant galement les licenci s de Sun qui mettent en place l interface d utilisation graphique OPEN LOOK et qui en outre se conforment aux licences crites
3. 24 Log on as the root user Execute the validation script probe _script described in To Run the Sun StorEdge Validation Script on page 12 Run this script as a check to make sure that you have removed the recommended Version 2 0 software patches and packages Insert the Sun SNDR software CD into the CD ROM drive Make sure that Volume Manager is running and that the CD ROM drive is mounted according to the procedure described in Step 3 in To Install the Sun SNDR Software on page 13 Install the packages according to the procedures described in To Install the Sun SNDR Software on page 13 Reboot your server shutdown y i 6 g 0 Caution Do not execute the probe_script script after you have installed Version 3 0 of the Sun SNDR Instant Image and SUNWnvm software Generally you should only run the script as part of the upgrade process from Version 2 0 to Version 3 0 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Converting Bitmap Files to Bitmap Volumes Note This procedure works correctly on enabled Sun SNDR volume sets If you used the default configuration file named etc opt SUNWrdc rdc cf to specify all volumes under Sun SNDR Version 2 0 software control the upgrade process uses this configuration information to enable volumes under the Version 3 0 software See Configuration Files From Version 2 0 on page 18 If you u
4. Sun SNDR software uses regular raw devices to store bitmaps These raw devices should be stored on a disk separate from the disk that contains the data Configure RAID such as mirrored partitions for these bitmap devices and ensure that the mirrored members are not stored on the same disk as the data In a clustered environment a bitmap must reside only on a volume The bitmap volume in this case must be part of the same disk group or cluster resource group as the corresponding primary or secondary data volume A bitmap maintained on disk can persist across a system crash depending on the setting of rdc_bitmap_mode in usr kernel drv rdc conf For example rdc_bitmap_mode Sets the mode of the RDC bitmap operation acceptable values ar 1 0 autodetect bitmap mode depending on the state of SDBC default force bitmap writes for every write operation so an update resync can be performed after a crash or reboot only write the bitmap on shutdown so a full resync is required after a crash but an update resync is required after a reboot rdc_bitmap_mode 0 If your server is configured in a clustered environment set the bitmap mode to 1 If your server is not configured in a clustered environment you can also choose the bitmap mode setting of 1 to improve error or disaster recovery Bitmap Size Requirements The bitmap size can be calculated using the following formula m 1 Kbyte 4 Kbyte
5. This step helps ensure that the host names in the etc hosts file are read and known by the machine running the Sun SNDR software If you use the Internet Protocol version 6 IPv6 transport protocol for replication configure the IPv4 and IPv6 stack concurrently on the host for the interface where the Sun SNDR software is utilized To use the IPv6 protocol ensure that you define the IPv4 and IPv6 interfaces with the same name You must define the primary and secondary hosts such that the same transport protocol is used by both machines To check that the address types are defined correctly use the ping 1M command m From the primary host ping s sechost where sechost is the secondary host name m From the secondary host ping s prihost where prihost is the primary host name For example ping displays the following for IPv6 addresses ping s fredl PING ipv2 56 data bytes 64 64 64 64 64 64 bytes from fredl fe80 a00 20ff feae 85fa icmp_seg 0 time 1 ms bytes from fredl fe80 a00 20ff feae 85fa icmp_seq l time 0 ms bytes from fredl fe80 a00 20ff feae 85fa icmp_seq 2 time 0 ms bytes from fredl fe80 a00 20ff feae 85fa icmp_seq 3 time 0 ms bytes from fredl fe80 a00 20ff feae 85fa icmp_seg 4 time 0 ms bytes from fredl fe80 a00 20ff feae 85fa icmp_seg 5 time 0 ms Sun StorEdge Network Data Replicator 3 0 Installation Guide 15 12 Complete t
6. amp Sun RS microsystems Sun StorEdge Network Data Replicator 3 0 Installation Guide Sun Microsystems Inc 901 San Antonio Road Palo Alto CA 94303 U S A 650 960 1300 Part No 806 7514 10 June 2001 Revision A Send comments about this document to docfeedback sun com Copyright 2001 Sun Microsystems Inc 901 San Antonio Road Palo Alto CA 94303 4900 U S A All rights reserved This product or document is distributed under licenses restricting its use copying distribution and decompilation No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors if any Third party software including font technology is copyrighted and licensed from Sun suppliers Parts of the product may be derived from Berkeley BSD systems licensed from the University of California UNIX is a registered trademark in the U S and other countries exclusively licensed through X Open Company Ltd Sun Sun Microsystems the Sun logo AnswerBook2 docs sun com Sun StorEdge SunATM Sun Enterprise and Solaris are trademarks registered trademarks or service marks of Sun Microsystems Inc in the U S and other countries All SPARC trademarks are used under license and are trademarks or registered trademarks of SPARC International Inc in the U S and other countries Products bearing SPARC trademarks are based upon an architecture developed by Sun Microsystems In
7. approximately 1 4 Mbytes e The Sun StorEdge configuration location requires 500 Kbytes see About The Configuration Location on page 7 e Supporting packages require approximately 3 Mbytes Sun StorEdge Network Data Replicator 3 0 Installation Guide 5 6 Preparing for Installation Note Read the pkgrm 1M and pkgask 1M man pages When installing and using the Sun SNDR software consider the information in the following sections Installation Order of the Sun StorEdge Software Install the Core Services software first followed by the Sun StorEdge data services software The order of installation for the Sun StorEdge data services software does not matter You can install the Sun SNDR or Sun StorEdge Instant Image software in any order after you install the Core Services software Upgrading from Version 2 0 If you are upgrading from the Sun SNDR software Version 2 0 see To Run the Sun StorEdge Validation Script on page 12 before installing Version 3 0 Bitmap Files Are Not Supported in Version 3 0 If you used files as bitmaps in the Sun SNDR Version 2 0 software you must convert them to volumes after you upgrade from Version 2 0 to Version 3 0 The Sun SNDR software Version 3 0 software does not support bitmap files See Converting Bitmap Files to Bitmap Volumes on page 27 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Using a Response File for Sun StorEdge Dat
8. de Sun LA DOCUMENTATION EST FOURNIE EN L ETAT ET TOUTES AUTRES CONDITIONS DECLARATIONS ET GARANTIES EXPRESSES OU TACITES SONT FORMELLEMENT EXCLUES DANS LA MESURE AUTORISEE PAR LA LOI APPLICABLE Y COMPRIS NOTAMMENT TOUTE GARANTIE IMPLICITE RELATIVE A LA QUALITE MARCHANDE A L APTITUDE A UNE UTILISATION PARTICULIERE OU A L ABSENCE DE CONTREFA ON QS aos CA Adobe PostScript Contents Sun StorEdge Network Data Replicator 3 0 Installation Guide 1 Introduction 1 Sun StorEdge Fast Write Cache 2 Related Documentation 3 Documentation Conventions 4 Installation Requirements 5 Preparing for Installation 6 Installation Order of the Sun StorEdge Software 6 Upgrading from Version 2 0 6 Bitmap Files Are Not Supported in Version 3 0 6 Using a Response File for Sun StorEdge Data Services Configuration During Installation 7 v To Use a Text Editor to Create a Response File 7 To Use the pkgask Utility 8 About Bitmaps 9 Network Interruptions 10 Installing the Sun SNDR Software 11 v To Run the Sun StorEdge Validation Script 12 v To Install the Sun SNDR Software 13 iv Installing the Sun StorEdge Software at Different Times 17 Configuring the Sun SNDR Software 18 Configuration Files From Version 2 0 18 Automatic Update Resynchronization 19 v To Enable Automatic Update Resynchronization 19 Using the dscfg Command to Back Up and Restore Configuration Information 20 v To Back Up Configuration Information 20 v To Restore Conf
9. editions include Instant Image 2 0 and Instant Image Version 2 0 1 Sun StorEdge Target Emulation Version 1 2 Sun StorEdge Fast Write Cache Version 2 0 and Sun SNDR software For example you cannot use Sun StorEdge Instant Image software Version 2 0 with Sun SNDR software Version 3 0 When you plan to install or upgrade to a Version 3 0 data service you must uninstall all Version 2 0 and 2 0 1 data services and patches Sun SNDR software Version 2 0 and its related packages include configuration files with a cf suffix in the etc opt SUNWpkg directories See Configuration Files From Version 2 0 on page 18 m Sun SNDR software Version 3 0 enables you to keep using the same volumes that you used with Sun SNDR software Version 2 0 as specified in the rdc cf rdc_ii cf and sv cf configuration files The upgrade procedure described here requires that you remove the Version 2 0 software When you remove the Version 2 0 software the de installation process using pkgrm 1M preserves the rde cf rdc_ii cf and sv cf configuration files in their original locations When the Sun SNDR software Version 3 0 installation process finds them in their original locations it converts them for use with Version 3 0 See Configuration Files From Version 2 0 on page 18 m Sun StorEdge Instant Image software Version 2 0 does not have a configuration file To create a configuration file that Instant Image software Version 3 0 can use enter the followin
10. the Instant Image and Sun SNDR Version 2 0 software to Version 3 0 To Remove the Sun FWC Version 2 0 Software Caution Do not execute the probe_script script after you have installed Version 3 0 of the Sun SNDR Instant Image and SUNWnvm software Generally you should only run the script as part of the upgrade process from Version 2 0 to Version 3 0 Log on as the root user Stop the Sun FWC Version 2 0 software and management services usr opt SUNWesm bin esm orderly stop Execute the validation script probe _script described in To Run the Sun StorEdge Validation Script on page 12 Run this script to generate a list of the recommended Version 2 0 software packages to remove Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 4 Remove the Sun FWC 2 0 Fast Write Cache and data services patches using patchrm 1M m Forall Solaris operating environments remove the following patch 109628 nn Sun StorEdge Fast Write Cache software patch where nn specifies the patch revision m For the Solaris 7 operating environment remove the following patches in the order listed 109973 nn Sun StorEdge Fast Write Cache software patch 109969 nn Sun StorEdge Core Services software patch where nn specifies the patch revision m For the Solaris 8 operating environment remove the following patches in the order listed 109974 nn Sun StorEdge Fast Write Cach
11. the Sun SNDR Software When you enable the Sun SNDR software using the usr opt SUNWesm sbin sndradm command you can specify a configuration file containing information about the volume set you can also enter this information from the command line volumes primary and secondary hosts bitmaps Sun SNDR software operating mode and so on See the rdc cf 4 man page and Sun StorEdge Network Data Replicator Version 3 0 Software System Administrator s Guide for more information about this configuration file format Configuration Files From Version 2 0 If you upgrade from Sun SNDR software Version 2 0 to Version 3 0 the Sun SNDR software converts your Version 2 0 configuration files to the latest format during installation The Sun SNDR Version 2 0 software uses three configuration files m The default configuration file named etc opt SUNWrdc rdc cf is used to specify volume set information for volumes under the Sun SNDR software control You could also create a customized configuration file depending on your server connection and disaster recovery plans in the Sun SNDR software Version 2 0 if this customized configuration file is named etc opt SUNWrdc rdc cf the Sun SNDR 3 0 installation process will use it If it is not named rdc cf include this information in the rdc cf file so that you can use it in Version 3 0 m The etc opt SUNWrdc rdc_ii cf configuration file is used to list all secondary volumes on which Sun StorEdge Instant I
12. who wish to continue using the Sun FWC product 31 Differences Between the SUNWnvm Version 3 0 and Sun FWC Version 2 0 Software Packages a You can use the Sun FWC Version 2 0 software in the Solaris 2 6 operating environment and subsequent compatible versions You can use the SUNWnvm Version 3 0 software in the Solaris 7 operating environment and subsequent compatible versions m The Sun FWC Version 2 0 software includes a graphical user interface to administer its features and the SUNWnvm Version 3 0 software package does not Use the command line interface fwcadm and scmadm utilities to administer the SUNWnvm Version 3 0 features The Sun StorEdge Fast Write Cache 2 0 System Administrator s Guide part number 806 2064 describes the fwcadm utility See the scmadm man page m The Sun FWC Version 2 0 software includes a cache parameter configuration file named etc opt SUNWscm sd cf The Version 3 0 software package does not Use the fwcadm and scmadm utilities to change configuration parameters 32 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Preparing to Upgrade the Sun FWC Version 2 0 Software Note Read the pkgrm 1M and pkgask 1M man pages TABLE 1 shows the general steps to upgrade the Sun FWC Version 2 0 software to the Version 3 0 software TABLE1 Sun FWC Upgrade Steps Summary 1 Perform an orderly shutdown of any Version 2 0 and 2 0 1 Sun StorEdge data services software 2
13. a Services Configuration During Installation When you install the Sun StorEdge Core Services software the installation process prompts you for a location for the Sun StorEdge data service configuration All Sun StorEdge data services use this location You can respond during the installation or you can use a response file you specify when you run the install_core script See To Install the Sun SNDR Software on page 13 You can create a response file two ways m Using a text editor m Using the pkgask 1M utility About The Configuration Location The configuration location must be a file name or block device for the single configuration location used by all Sun StorEdge data service software you plan to install For example dev dsk clt1d0s7 or config If you select a file name its file system must be the root or usr file system If you select a volume manager controlled volume it must be available when the Sun StorEdge data services software is started The Sun StorEdge configuration location requires 500 Kbytes of disk space If you specify a file for the configuration location the file of the appropriate size is automatically created To Use a Text Editor to Create a Response File Open an ASCII file using a text editor such as vi 1 or ed 1 Enter a single line in the file F ILE_LOC response where response is a file name or block device for the single configuration location Sun StorEdge Netw
14. a Replicator 3 0 System Administrator s Guide Perform the restore procedure if the volume where the configuration resides fails v To Back Up Configuration Information Note Perform this step after you have set up an initial configuration and anytime you change your configuration for example adding and deleting volumes Write the configuration information to an ASCII file usr opt SUNWscm sbin dscfg 1 gt ASCII output file v To Restore Configuration Information Caution Perform the restore procedure only if the Sun StorEdge data services software Instant Image Sun SNDR and Fast Write Cache is not in use In clustered environments no node can be using the data service software 1 Initialize the configuration file All data services information will be lost The command prompts you to confirm the action before any action is taken usr opt SUNWscm sbin dscfg i 20 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 2 Load the configuration file parsing rules for the ASCII file usr opt SUNWscm sbin dscfg i p etc opt SUNWesm pconfig 3 Add the configuration file you created in To Back Up Configuration Information on page 20 usr opt SUNWscm sbin dscfg a ASCII output file Note If the original configuration location becomes corrupted you can change it using the dscfg s full_path command Use this
15. c The OPEN LOOK and Sun Graphical User Interface was developed by Sun Microsystems Inc for its users and licensees Sun acknowledges the pioneering efforts of Xerox in researching and developing the concept of visual or graphical user interfaces for the computer industry Sun holds anon exclusive license from Xerox to the Xerox Graphical User Interface which license also covers Sun s licensees who implement OPEN LOOK GUIs and otherwise comply with Sun s written license agreements Federal Acquisitions Commercial Software Government Users Subject to Standard License Terms and Conditions DOCUMENTATION IS PROVIDED AS IS AND ALL EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NON INFRINGEMENT ARE DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID Copyright 2001 Sun Microsystems Inc 901 San Antonio Road Palo Alto CA 94303 4900 Etats Unis Tous droits r serv s Ce produit ou document est distribu avec des licences qui en restreignent l utilisation la copie la distribution et la d compilation Aucune partie de ce produit ou document ne peut tre reproduite sous aucune forme par quelque moyen que ce soit sans l autorisation pr alable et crite de Sun et de ses bailleurs de licence s il y en a Le logiciel d tenu par des tiers et qui comprend la technologie relative aux polices de
16. ce for these protocols see the SunATM documentation listed in Related Documentation on page 3 See the network protocol manuals listed in Related Documentation on page 3 for more information about other protocols Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 APPENDIX A Sun StorEdge Fast Write Cache Software This appendix describes how to remove the Sun StorEdge Fast Write Cache Sun FWC Version 2 0 software and install the SUNWnvm Version 3 0 software package available on the Sun StorEdge Core Services CD The SUNWnvm Version 3 0 Package and the Sun FWC Version 2 0 Product The Version 2 0 and Version 3 0 Sun StorEdge data services are binary incompatible If your system includes Version 2 0 of the Sun StorEdge Instant Image software including Instant Image 2 0 1 with STE 1 2 Sun SNDR software or Sun StorEdge Fast Write Cache you must remove them before installing Version 3 0 Sun StorEdge data services For example you cannot use the Sun StorEdge Fast Write Cache product Version 2 0 with the Sun SNDR software Version 3 0 When you plan to install or upgrade to a Version 3 0 data service you must uninstall all Version 2 0 and 2 01 data services However the Sun StorEdge Core Services Version 3 0 CD contains the Sun StorEdge SUNWnvm Version 3 0 software package This package is intended for those users whose systems include Version 2 0 of the Sun FWC hardware and software product and
17. command only if the location becomes corrupted Sun StorEdge Network Data Replicator 3 0 Installation Guide 21 22 Upgrading the Sun SNDR Version 2 0 Software Note Before upgrading read the pkgadd 1M pkgrm 1M and patchrm 1M man pages TABLE 2 shows the general steps to upgrade the Sun SNDR Version 2 0 software to Version 3 0 software TABLE2 Sun SNDR Upgrade Steps Summary 1 Su GON ET SN OT ee If you have the Instant Image Version 2 0 software installed back up the Instant Image configuration information according to the procedure described in Upgrade Considerations on page 23 Perform an orderly shutdown of any Version 2 0 and 2 0 1 Sun StorEdge data services software Execute the validation script probe_script described in To Run the Sun StorEdge Validation Script on page 12 Remove any related patches Remove any Version 2 0 and 2 0 1 Sun StorEdge data services software Remove the Sun StorEdge SNDR and Core Services Version 2 0 software packages Install the Sun StorEdge SNDR and Core Services Version 3 0 software packages Optional Install the sunwnvm Version 3 0 package see Appendix A Convert any Sun SNDR bitmap files to bitmap volumes Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Upgrade Considerations Caution The Version 2 0 editions of any of the Sun StorEdge data services cannot operate with the Version 3 0 editions These
18. e CD into the CD ROM drive that is connected to your system 3 Start the Volume Manager daemon vold 1M if needed and install the Sun StorEdge Core Services software Choose method a or b Note If you are installing more than one Sun StorEdge data service you only need to start the Volume Manager daemon and install the Core Services software once Do not start the daemon and install the Core Services software more than once a To install the Sun StorEdge Core Services software using the installation script type etc init d volmgt start cd cdrom cdrom0 install_core b To install the Sun StorEdge Core Services software using the installation script and a response file see Using a Response File for Sun StorEdge Data Services Configuration During Installation on page 7 type etc init d volmgt start cd cdrom cdrom0 install_core response file where response file is the file you created using the procedures in Using a Response File for Sun StorEdge Data Services Configuration During Installation on page 7 Proceed to Step 6 The Core Services software package installation starts If you did not use a response file the installation process prompts you as follows Proceed to Step 4 Do you want to specify the Sun StorEdge data services configuration location y n Sun StorEdge Network Data Replicator 3 0 Installation Guide 13 4 For a firs
19. e software patch 109970 nn Sun StorEdge Core Services software patch where nn specifies the patch revision If patchrm 1M fails to remove the 06 patch revision level of the patches with the following error you can ignore the error and continue Patch patch 06 is not installed or is invalid where patch is the patch number 5 Remove any supporting packages for your locale a For the French locale enter pkgrm SUNWfmscm b For the Japanese locale enter pkgrm SUNWjmscm Appendix A Sun StorEdge Fast Write Cache Software 35 c For the Chinese locale enter pkgrm SUNWcmscm 6 Remove the Sun FWC Version 2 0 Management Services packages pkgrm SUNWmscmr SUNWmscmu 7 Remove the Sun FWC Version 2 0 package pkgrm SUNWnvm 8 If this is the last Sun StorEdge Version 2 0 or 2 0 1 data service software package you are removing remove the Core Services packages If this is not the last Version 2 0 or 2 0 1 package you are removing skip this step pkgrm SUNWspcsl SUNWspsv SUNWscm SUNWspuni 9 If this is the last Sun StorEdge Version 2 0 or 2 0 1 data service software package you are removing remove the Sun StorEdge Management Services supporting packages If this is not the last Version 2 0 or 2 0 1 package you are removing skip this step Note Do not remove these packages if you have the Sun StorEdge Component Manager
20. emon vold 1M if needed and run the validation script etc init d volmgt start cd cdrom cdrom0 probe_script The probe_script script checks that you are the root user you have the correct version of the Solaris operating environment installed and whether you have Version 2 0 of any Sun StorEdge data services software currently installed If you are not the root user or are not running the Solaris 7 operating environment or subsequent compatible version the script displays messages stating WARNING You re currently not the root user You must be root when you execute the installation scripts WARNING The version of Solaris currently running is less than the minimum version of Solaris required for installation The minimum version of Solaris required is 7 and continues to check if any Sun StorEdge Version 2 0 software is installed If the script detects that the Sun SNDR software Version 2 0 is currently installed on your system perform the procedures described in Upgrading the Sun SNDR Version 2 0 Software on page 22 After the script executes successfully the system displays the following message System is ready for data services 3 0 installation 12 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 v To Install the Sun SNDR Software 1 Log on as the root user You can install this software in single user or multiuser state 2 Insert the Sun StorEdge Core Services softwar
21. g command as the root user before you remove old versions and install new versions usr opt SUNWesm sbin iiadm i all gt etc opt SUNWesm iiadm out During installation the output of the iiadm command is converted to the Version 3 0 format to be used by the Instant Image software Version 3 0 Sun StorEdge Network Data Replicator 3 0 Installation Guide 23 v To Remove the Sun SNDR Software Version 2 0 Note The probe_script described in To Run the Sun StorEdge Validation Script on page 12 lists the packages you must remove before upgrading The probe_script script also lists the order in which to remove them when you use pkgrm 1M You must remove the packages in the order listed 1 Log on as the root user 2 If you have other Sun StorEdge Version 2 0 data services installed such as Sun StorEdge Instant Image Version 2 0 or 2 0 1 perform an orderly shutdown of these services usr opt SUNWesm bin esm_orderly stop 3 Execute the probe_script validation script described in To Run the Sun StorEdge Validation Script on page 12 4 Remove the Sun StorEdge software specific patches using pat chrm 1M If patchrm fails to remove the 06 patch revision level of the patches with the following error you can ignore the error and continue Patch patch 06 is not installed or is invalid where patch is the patch number m For the Solaris 7 operating environment remove the following patches in
22. ge 22 Install the Sun StorEdge Core Services software Install the Sun SNDR software Edit the etc hosts file Edit the etc nsswitch conf file Install other Sun StorEdge data services software if applicable 9 i OTR 00 Reboot your server Before you start the installation run the Sun StorEdge validation probe_script script described in To Run the Sun StorEdge Validation Script on page 12 Perform the following procedures on the primary and secondary server To install Sun SNDR software requires two CDs m Sun StorEdge Core Services software CD m Sun SNDR software CD Note When you specify a configuration location as prompted by the Sun StorEdge data services installation process the location must be writable by the root user Sun StorEdge Network Data Replicator 3 0 Installation Guide 11 v To Run the Sun StorEdge Validation Script Note The probe_script script also lists any packages that you must remove and the order in which you must remove them when you use pkgrm 1M Caution Do not execute the probe_script script after you have installed Version 3 0 of the Sun SNDR Instant Image and SUNWnvm software Generally you should only run the script as part of the upgrade process from Version 2 0 to Version 3 0 1 Log on as the root user 2 Insert the Sun StorEdge Core Services software CD into the CD ROM drive that is connected to your system 3 Start the Volume Manager da
23. he installation m If you are installing other data services continue installing those data services m If you are installing only the Sun SNDR software or if this is the last data service you are installing ensure that you have ejected the CD and then reboot the system You only need to reboot your system once after you have installed all Sun StorEdge data software products cd eject cdrom etc shutdown y g 0 i 6 16 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Installing the Sun StorEdge Software at Different Times If you have performed one of the following installation sequences m Installed the Sun StorEdge Core Services Version 3 0 software and have rebooted m Installed the Core Services and one or more Version 3 0 data service software packages and have rebooted You must reboot your server as described in the following text after you install another Version 3 0 software package This situation also applies if you want to add data services software at a later date For example if you have m Installed the Core Services software m Installed the Instant Image software Rebooted your server and you wish to install the Sun SNDR software now or at a later date you must m Install the Sun SNDR software m Reboot your server as follows touch reconfigure etc shutdown y g 0 i 6 Sun StorEdge Network Data Replicator 3 0 Installation Guide 17 Configuring
24. iguration Information 20 Upgrading the Sun SNDR Version 2 0 Software 22 Upgrade Considerations 23 v To Remove the Sun SNDR Software Version 2 0 24 v To Upgrade the Sun SNDR Software 26 Converting Bitmap Files to Bitmap Volumes 27 v To Convert Bitmap Files to Volumes 27 Removing and Reinstalling the Sun SNDR Version 3 0 Software 29 v To Remove and Reinstall the Sun SNDR Software 29 Configuring the Link Interface 30 Sun StorEdge Fast Write Cache Software 31 The SUNWnvm Version 3 0 Package and the Sun FWC Version 2 0 Product 31 Differences Between the SUNWnvm Version 3 0 and Sun FWC Version 2 0 Software Packages 32 Preparing to Upgrade the Sun FWC Version 2 0 Software 33 The etc opt SUNWscm sd cf Configuration File 33 Removing the Sun FWC Version 2 0 Software 34 v To Remove the Sun FWC Version 2 0 Software 34 Installing the SUNWnvm Version 3 0 Software 38 v To Install the SUNWnvm Version 3 0 Software 38 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 The fwcadm Administrative Utility 40 Contents v vi Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Sun StorEdge Network Data Replicator 3 0 Installation Guide Caution Do not install or use the Sun StorEdge Version 3 0 Core and data services software on servers in a Sun Cluster 3 0 environment The Version 3 0 software is not co existent with the Sun Cluster 3 0 environment The Version 3 0 software is co existent in the S
25. ility in more detail fwcadm is the administration command for the cache NVRAM card and the Storage Volume SV driver fwcadm must be specified with one of the following parameters m cache enables and disables the cache displays cache statistics destages cache clears the offline state of a failed disk device or reidentifies the specified new or replaced disk device m nvram displays the status of the NVRAM boards m volume enables and disables the SV driver for specified disk devices displays status and dynamically reconfigures the system Syntax Note See the S option in the scmadm man page for a description of the M d e 1 and z options fwcadm cache purge sync redevid diskname fwcadm cache d e fwcadm cache s M d time 1 file r range z fwcadm nvram s fwcadm volume s C tag fwcadm volume d diskname f config file C tag fwcadm volume e diskname f config file C tag diskname config file C tag fwcadm volume r 40 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 cache Options Option Description cache d Disables the cache cache e Enables the storage device cache cache s Displays cache statistics Press the t key to toggle between two screens The first screen shows general statistics about the data cache and the second screen displays total counts cache purge diskname Disca
26. mage software was enabled by the rdc_ii_enable script m The etc opt SUNWspsv sv cf Storage Volume SV driver interface file is used to place the Sun SNDR software volumes under SV control The Sun SNDR software Version 3 0 enables you to keep using the same volumes and volume sets that you used with the Sun SNDR software Version 2 0 as specified inthe rdc cf rdc_ii cf andsv cf configuration files The upgrade procedure described in Upgrading the Sun SNDR Version 2 0 Software on page 22 requires that you remove the Version 2 0 software When you remove the Version 2 0 software the removal process using pkgrm 1M preserves the rdc cf rdc_ii cf and sv cf configuration files in their original locations When the Sun SNDR software Version 3 0 installation process finds them in their original locations it converts them for use with Version 3 0 18 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Automatic Update Resynchronization The usr opt SUNWrdc lib sndrsyncd daemon automates update resynchronization after a network link or machine failure if the Sun StorEdge Instant Image software is also installed it invokes point in time copies when necessary to protect the data volumes being updated during a resynchronization When a network link being used by the Sun SNDR software becomes unavailable the daemon attempts to invoke the Sun SNDR software update commands to resynchronize all volume sets that have auto
27. ork Data Replicator 3 0 Installation Guide 7 v To Use the pkgask Utility Note When you specify a configuration location as prompted by the Sun StorEdge data services installation process the location must be writable by the root user 1 Ensure that the Volume Manager daemon vold 1M is running 2 Insert the Sun StorEdge Core Services software CD into the CD ROM drive that is connected to your system 3 To use the pkgask utility to create a response file type pkgask d cdrom cdrom0 CORE r response file SUNWscmu where response file is the response file you will specify when you run the Sun StorEdge Core Services install_core script The pkgask utility prompts you as follows Do you want to specify the Sun StorEdge data services configuration location y n y Where should the Sun StorEdge data services configuration be located 4 Specify a file name or block device For example dev dsk clt1d0s7 or config Note If you select a file name its file system must be the root or usr file system The utility displays Response file lt response file gt was created Processing of request script was successful 8 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 About Bitmaps Note After editing the usr kernel drv rdc conf file reboot your server The Sun SNDR Version 3 0 software does not support bitmap files The
28. put AaBbCc123 Book titles new words or Read Chapter 6 in the User s Guide terms words to be These are called class options emphasized You must be root to do this Command line variable To delete a file type rm filename replace with a real name or value In syntax brackets indicate scmadm d sec r n n n z that an argument is optional arg arg In syntax braces and pipes sndradm R b p s indicate that one of the arguments must be specified Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Installation Requirements Software Hardware Solaris 7 or 8 operating environment or a subsequent compatible version Sun StorEdge Sun SNDR and data service core software see To Install the Sun SNDR Software on page 13 Appropriate software for the selected network transport for example the SunATM or Gigabit Ethernet transports Sun StorEdge Instant Image software is an optional software component Install this package for additional point in time capability A CD ROM drive connected to the host server where the Sun SNDR software is to be installed The Sun SNDR software is supported on server hosts using the Solaris operating environment and any network interface card supported by Sun Hosts include but are not limited to e Sun Enterprise 2x0 through 4x0 servers e Sun Enterprise 3000 through 10000 servers Disk space e The Sun SNDR software requires
29. rds the failed blocks and clears the offline state of the failed device cache sync diskname Destages the failed blocks and clears the offline state of the device cache redevid diskname Allows the re identification of a replaced physical disk This option is necessary only if pinned data exists for the device Pinned data is data on the NVRAM card that has not been flushed to disk nvram Options Option Description nvram s Displays the status of the NVRAM cards Appendix A Sun StorEdge Fast Write Cache Software 41 volume Options Option Description volume d volume e volume r volume s C tag diskname config file C tag Disables the specified SV device or devices specified in the configuration file config file Enables the specified SV devices Reconfigures the SV subsystem It compares the contents of the configuration file to the state of the running system and then enables and disables devices to reconfigure the running system as specified in the configuration file config file Displays the current state of the SV subsystem Specifies the disk device to operate on Specifies a configuration file containing a list of SV disk devices On a clustered node limits operations to only those volumes belonging to the cluster resource group or disk group name specified by tag This option is illegal on a system that is not clustered The special tag local can be
30. s installed remove the Sun StorEdge Core Services software packages pkgrm SUNWspsvu SUNWspsvr SUNWscmu SUNWscmr Reboot your server shutdown y i 6 g 0 When the server completes its startup process log in as root and install the packages according to the procedures described in Installing the Sun SNDR Software on page 11 Note When you reinstall Sun SNDR Version 3 0 software and wish to keep the previously designated configuration location answer n to the prompt Do you want to specify the Sun StorEdge data services configuration location y n Sun StorEdge Network Data Replicator 3 0 Installation Guide 29 7 If you answered y to the question in Step 6 and specified a new configuration location restore your Sun StorEdge data services information as described in Using the dscfg Command to Back Up and Restore Configuration Information on page 20 8 Reboot your server shutdown y i 6 g 0 30 Configuring the Link Interface Although Sun SNDR software is most likely to be used with Sun ATM link level interfaces Sun SNDR software can be used with any link level interface supported by Sun that is TCP IP capable such as Gigabit Ethernet Gigabit Ethernet Fibre Channel and others When using ATM ensure that the configuration supports TCP IP by using either Classical IP or LAN Emulation For more information on configuring the SunATM interfa
31. s per Gbyte of device storage space For example a 2 Gbyte data device requires a bitmap size of 9 Kbytes You can create bitmaps that are larger than the calculated size Sun StorEdge Network Data Replicator 3 0 Installation Guide 9 Network Interruptions If the Sun SNDR software network connection is interrupted operations to Sun SNDR software volumes are blocked temporarily while Sun SNDR software starts its logging mode See the Sun StorEdge Network Data Replicator Version 3 0 Software System Administrator s Guide for more information on handling interruptions and other recovery scenarios 10 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Installing the Sun SNDR Software Caution Do not install or use the Sun StorEdge Version 3 0 Core and data services software on servers in a Sun Cluster 3 0 environment The Version 3 0 software is not co existent with the Sun Cluster 3 0 environment The Version 3 0 software is co existent in the Sun Cluster 2 2 environment where it will not interfere with failover The Version 3 0 core and data services software is cluster aware in the Sun Cluster 3 0 Update 1 environment and provides high availability for the Sun StorEdge software TABLE 1 shows the installation steps summary TABLE 1 Installation Steps Summary 1 Run the probe_script validation script remove old packages if needed and reboot See Upgrading the Sun SNDR Version 2 0 Software on pa
32. sed files to store bitmaps in Version 2 0 you must convert any bitmap files to bitmap volumes after you upgrade from Version 2 0 to Version 3 0 The Sun SNDR Version 3 0 software does not support bitmap files v To Convert Bitmap Files to Volumes 1 Log on as the root user 2 Use the Sun SNDR software to list the volume set information for enabled volume sets For example fas bi fas bi fas bi usr opt SUNWesm sbin sndradm i t7 dev rdsk c2t0d0s1 dev rdsk c2t1d0s0 fast8 dev rdsk c4t96d0s1 tmaps voll ip sync t7 dev rdsk c2t0d0s1 dev rdsk c2t1d0s3 fast8 dev rdsk c4t97d0s1 tmaps vol2 ip sync t7 dev rdsk c2t0d0s1 dev rdsk c2t1d0s4 fast8 dev rdsk c4t98d0s1 tmaps vol3 ip async Note that the output is formatted as follows phost pdev pbitmap shost sdev sbitmap ip sync async where pbitmap and sbitmap are the primary and secondary host bitmaps 3 Check that a bitmap is a volume or file using the file 1M command file bitmapname where bitmapname is the bitmap shown in the sndradm i command output If the file type is ASCII text convert the file to a volume The volume must be the same size or larger than the file Sun StorEdge Network Data Replicator 3 0 Installation Guide 27 4 To convert the bitmap file to a bitmap volume assign new primary and secondary host bitmap volumes to the Sun SNDR volume set This command copies any data from the bitmap file to the bitmap
33. software installed on your system and you plan to use it pkgrm SUNWmjhlp SUNWmjmai SUNWmjacf locale SUNWesmru SUNWesmrt locale SUNWdaert SUNWesm 36 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 where locale1 and locale2 are packages installed for your locale locale1 French SUNWfresm Japanese SUNWjeesm Chinese SUNWcesm locale2 French SUNWfrdae Japanese SUNWjadae Chinese SUNWcdae 10 Optional Remove the Sun StorE dge data service persistence files rm var opt SUNWesm m persistence 11 If this is the last Version 2 0 or 2 0 system now 1 data service that you are removing reboot the etc shutdown y i 6 g 0 Appendix A Sun StorEdge Fast Write Cache Software 37 Installing the SUNWnvm Version 3 0 Software The following procedures describe how to install the SUNWnvm Version 3 0 software The procedures assume you have already installed other data service related packages such as the Sun StorEdge Core Services Sun SNDR and Instant Image Version 3 0 software Note See Installing the Sun StorEdge Software at Different Times on page 17 v To Install the SUNWnvm Version 3 0 Software 1 Log on as the root user You can install this software in single user or multiuser state 2 Insert the Sun StorEdge Core Services software CD into the CD ROM drive that is connected
34. synchronization enabled and are using the network link The daemon is also notified when any Sun SNDR software resynchronization starts or ends If Instant Image software is installed the daemon also performs point in time copy operations using this software On a secondary server the daemon checks whether a file system is currently mounted on the secondary volume and informs the kernel not to allow the synchronization to start if the file system is currently mounted v To Enable Automatic Update Resynchronization On the primary and secondary hosts use this command usr opt SUNWesm sbin sndradm a on g io groupname C tag n config file SNDR set set name where io groupname is the I O group name a tag is the disk group or resource name C tag is used in Sun Cluster 3 0 Update 1 environments only a SNDR set is the fully specified volume set information set name is the volume set name typically shost sdev Note When you use this command on an I O group all volume sets in the I O group are affected Sun StorEdge Network Data Replicator 3 0 Installation Guide 19 Using the dscf g Command to Back Up and Restore Configuration Information You use the usr opt SUNWscm sbin dscfg command to back up and restore the data services information Typically you make any volume set related changes using the usr opt SUNWesm sbin sndradm command described in the Sun StorEdge Network Dat
35. t time installation respond by typing y The Core Services software prompts you as follows Where should the Sun StorEdge data service configuration be located 5 Enter a file name or block device for the single configuration location used by all Sun StorEdge data service software you plan to install For example dev dsk clt1d0s7 or config Note If you select a file name its file system must be the root or usr file system 6 Remove the Sun StorEdge Core Services software CD from the CD ROM drive cd eject cdrom 7 Insert the Sun SNDR CD and install the Sun SNDR software m To install Sun SNDR software using the installation script type cd cdrom cdrom0 install_sndr The package installation starts 8 Remove the Sun SNDR software CD from the CD ROM drive cd eject cdrom 9 Place the names and IP addresses of all machines you plan to use with the Sun SNDR software in the etc hosts file Edit this file on each machine where you are installing and running the Sun SNDR software 14 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 10 11 In the etc nsswitch conf file of each machine where the Sun SNDR software is installed ensure that the hosts section includes the files option For example hosts files nis The Sun SNDR software starts before the host machine naming services start
36. tant Image 3 0 Release Notes 806 7678 Installation and User Sun StorEdge Instant Image 3 0 Installation Guide 806 7675 SunATM 3 0 Installation and User s Guide 805 0331 Sun ATM 4 0 Installation and User s Guide 805 6552 Sun Gigabit Ethernet FC AL P Combination Adapter 806 2385 Installation Guide Sun Gigabit Ethernet S 2 0 Adapter Installation and 805 2784 User s Guide Sun Gigabit Ethernet P 2 0 Adapter Installation and User s Guide 805 2785 Sun Enterprise 10000 InterDomain Networks User 806 4131 Guide System Administration Sun StorEdge Network Data Replicator 3 0 System 806 7512 Administrator s Guide Sun StorEdge Instant Image 3 0 806 7677 System Administrator s Guide TCP IP and Data Communications Administration 805 4003 Guide Sun StorEdge Fast Write Cache 2 0 System 806 2064 Administrator s Guide Sun StorEdge Network Data Replicator 3 0 Installation Guide 3 Application Title Part Number Configuration Sun StorEdge Network Data Replicator 3 0 806 7550 Configuration Guide Sun StorEdge Instant Image 3 0 Configuration Guide 806 7676 10 Sun Enterprise 10000 InterDomain Network 806 5230 Configuration Guide Documentation Conventions Typeface or Symbol Meaning Examples AaBbCc123 The names of commands Edit your login file files and directories Use 1s a to list all files on screen computer output You have mail AaBbCc123 What you type when su contrasted with on screen Password computer out
37. the order listed 109981 nn Sun StorEdge Network Data Replicator software patch 109969 nn Sun StorEdge Core Services software patch where nn specifies the patch revision For example showrev p grep 109981 Patch 109981 05 Obsoletes Requires 109967 05 Incompatibles Packages SUNWrdcu patchrm 109981 05 24 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 m For the Solaris 8 operating environment remove the following patches in the order listed 109982 nn Sun StorEdge Network Data Replicator software patch 109970 nn Sun StorEdge Core Services software patch where nn specifies the patch revision 5 Remove the Sun SNDR software pkgrm SUNWrdcu SUNWrdcr 6 Remove any other Sun StorEdge data services Version 2 0 software as indicated by the probe_script script See the related Version 2 0 Installation Guide for specific removal steps The Sun StorEdge Instant Image Version 3 0 Installation Guide describes how to remove the Instant Image 2 0 software 7 Remove the Sun StorEdge Core Services software pkgrm SUNWspsv SUNWscm SUNWspuni 8 Reboot your server shutdown y i 6 g 0 Sun StorEdge Network Data Replicator 3 0 Installation Guide 25 26 v To Upgrade the Sun SNDR Software Note Remove the Sun SNDR Version 2 0 software according to procedures in To Remove the Sun SNDR Software Version 2 0 on page
38. tion can be requested and this scoreboard logging information is used to bring the remote site up to date Sun StorEdge Fast Write Cache The Version 2 0 and Version 3 0 Sun StorEdge data services are binary incompatible If your system includes Version 2 0 of the Sun StorEdge Instant Image software including Instant Image 2 0 1 with Sun StorEdge Target Emulation 1 2 Sun SNDR software or Sun StorEdge Fast Write Cache you must remove them before installation For example you cannot use Sun StorEdge Instant Image software Version 2 0 with Sun SNDR software Version 3 0 When you plan to install or upgrade to a Version 3 0 data service you must uninstall all Version 2 0 and 2 0 1 data services However the Sun StorEdge Core Services Version 3 0 CD contains the Sun StorEdge SUNWnvm Version 3 0 software package This package is intended for those users whose systems include Version 2 0 of the Sun FWC hardware and software product and who wish to continue using the Sun FWC product See Appendix A for details Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Related Documentation For the latest version of storage software documentation go to http www sun com products n solutions hardware docs Software Application Title Part Number Man pages sndradm N A dscfg file fwcadm pkgadd pkgrm pkgask scmadm svadm Release Sun StorEdge Network Data Replicator 3 0 Release 806 7513 Notes Sun StorEdge Ins
39. to your system 3 Start the Volume Manager daemon vold 1M if needed and install the SUNWnvm software Note This procedure assumes that you have already installed the Sun StorEdge Core Services software see To Install the Sun SNDR Software on page 13 Step 3 If you are installing more than one Sun StorEdge data service you only need to start the Volume Manager daemon and install the Core Services software once Do not start the daemon and install the Core Services software more than once etc init d volmgt start cd cdrom cdrom0 install_fwe 4 Complete the installation a If you are installing other data services eject the CD and continue installing those data services 38 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 If you are installing only the SUNWnvm Version 3 0 software or if this is the last data service you are installing eject the CD and reboot the system You only need to reboot your system once after you have installed all Sun StorEdge data software products cd eject cdrom etc shutdown y g 0 i 6 a See also Installing the Sun StorEdge Software at Different Times on page 17 Appendix A Sun StorEdge Fast Write Cache Software 39 The fwcadm Administrative Utility Note See the fwcadm man page The Sun StorEdge Fast Write Cache 2 0 System Administrator s Guide part number 806 2064 describes the fwcadm ut
40. un Cluster 2 2 environment where it will not interfere with failover The Version 3 0 core and data services software is cluster aware in the Sun Cluster 3 0 Update 1 environment and provides high availability for the Sun StorEdge software Note If you are upgrading from Version 2 0 please see Upgrading the Sun SNDR Version 2 0 Software on page 22 for important information Introduction This Sun StorEdge Network Data Replicator 3 0 Installation Guide describes installation procedures and product considerations for the Sun StorEdge Network Data Replicator Sun SNDR Version 3 0 software The Sun SNDR software is remote replication software that is used on Sun servers to provide redundant storage of critical information across physically separate sites The replication that occurs during a synchronization is performed synchronously Subsequent writes can be performed synchronously or asynchronously In synchronous mode a write operation is not confirmed as complete until the remote volume has been updated In asynchronous mode a write operation is confirmed as complete before the remote volume has been updated 2 Once replication has been established when interruptions in service occur for example a disk or link failure primary volume blocks that are being updated locally but have not been transmitted to the secondary site are tracked When the Sun SNDR software data service is restored fast update resynchroniza
41. used to limit operations to only those volumes which cannot switchover to other nodes in the cluster 42 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001
42. volume m To change a primary host bitmap issue the command from the primary host m To change a secondary host bitmap issue the command from the secondary host m Optionally to ensure consistency for status reporting issue the command from both hosts For example to change a secondary host bitmap issue the command from the secondary host first and then issue it from the primary host usr opt SUNWesm sbin sndradm R b p new primary bitmap set name where set name is the name of the Sun SNDR software volume set as assigned by the Sun SDNR software The Sun SDNR software assigns a default volume set name of shost sdev where shost is the secondary host name and sdev is the secondary volume partition name separated by a colon 28 Sun StorEdge Network Data Replicator 3 0 Installation Guide June 2001 Removing and Reinstalling the Sun SNDR Version 3 0 Software Perform the following procedures on each server where you plan to reinstall the Sun SNDR Version 3 0 software See also Installing the Sun StorEdge Software at Different Times on page 17 To Remove and Reinstall the Sun SNDR Software Log on as the root user Back up your Sun StorEdge data services information as described in Using the dscfg Command to Back Up and Restore Configuration Information on page 20 Remove the Sun SDNR software packages pkgrm SUNWrdcu SUNWrdcr If no other Sun StorEdge data services software i
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