Snapshot/Image Service User Guide
Contents
1. Event Creating Image Change the snapshot name Create Disk delete Group Management Explanation ID g0536ad 1 a 73d 4320 b20e a6f01b013539c snapshot Type root volume ucloud server User manual Volume Size GB 20 00 GB OS Type SUSE Linux Enterpris Snapshot Size GBi 1 95 GB After entering name of image to be used click OK button Create Image Image of snapshot testdd is created Please enter the name of image Image Name Create Image lt takes approximately 20 minutes on the 1066 basis of actual reserve of volume Size and the completion will be notified via email Would you create Create Image Image creation request is completed You can check the created image on My Image menu You can check the created image on My Image menu ucloud server My Image Current State of Service Image Name state Cloud Server capimg Fedora release 13 64 bit waiting Disk My Snapshot testiImage 1234 SUSE Linus Enterprise Serveri ge Network Network Traffic Statistics Check API Key Event Group Management Select Account artoflifes naver com Volumn Size public ownership etting Date of Creatio 2012 09 26 16 49 0 00 GE Closed 2012 09 21 1227 20 00 GB sharing E delete State is shown as Waiting and it is changed into Use upon completion of image creation 4 Create Volume service on created snapshot You can create volume Disk wit2. VM creation with user image gt Multiple identical VM can be created with created image Volume creation gt Volume can be created with created snapshot VM attach of created volume gt Created volume can be attached to detached from VM create Image providing service in a state of stopped VM root Snapshot volume create volume create snapshot data volume Snapshot Mew create volume volume II Service screen setting This chapter guide use of Snapshot Image service on ucloud portal 1 Creating Snapshot Go to Cloud Console ucloud server Cloud Server to create snapshot After selecting server for snapshot creation click Snapshot at the bottom right X Warning Since snapshot is function for backing up VM volume as virtual disk image contents on memory of VM or on CPU are not saved It is recommended to perform operations of snapshot creation with stopped VM for stable snapshot creation After entering name of snapshot to be created click OK button Since then creation of snapshot is operated and you can check the results on My Snapshot menu Upon completion of creation the state changes from Creating Use clleh ucloud biz ucloud server additional ucloud server Cloud server Select Account artoflife3 naver com add a server Select State Total Server Name Server Name State
3. You can access to the created server after setting up port forwarding ucloud server Cloud server Select Account Jartoflifes naver com gt EEEE Current State of Service Select State Total Server Name Cloud Server specification Console Disk Type server Name CPU RAM View My Snapshot My Image capimage Centos 5 4 32 bit MEI vcore 1 00 GB Network testimage SUSE Linux Enterprise Server 11 32 bit Boet 1 vCore 1 00 GB Network Traffic statistics Check API Key 123 Other PY 64 bit RETO 4 vCore 4 00 GB Event testServer SUSE Linux Enterprise Server 11 32 bit BAME 1 vcore 1 00 GB Group Management change charge plan Details Server capdd d66a4c 1d 6298 4 td Address of z User manual Name a380 9cea4be889b0 ie intenal IP 12 27 1596 E Port forwarding Date of Creation ucloud server 09262012 16 23 05 Plan Monthly Plan ucloud CPU 4 yvCore 2 00 GHz Memory 4 00 GB Simple monthly Calculator Og SUSE Linux Enterprise Server 11 32 bit State Service Rate Total 100 00 GB Classification server 1 USD 1119 Won NE Sen 25 2012 l l Mame Type Capacity Date of Creation Create Snapshot lmage ROOT 4 435 Root 20 00 GE 09 26 2012 16 25 05 Creation and restoration guide of snapshot on Data volume composed with Linux LVM How to compose LVM on ucloud server 20GB of ROOT Disk and 80GB of Data Disk are provided upon Linux VM creation by default If additional Data Disk is needed maxim
4. My Snapshot Other PY 64 bit 4 vCore 400GB ME My Image Specification Console server Network Network Traffic Statistics Check API Key Event Group Management start stop reboot delete Explanation D ucloud server server 123 fidaaSfa c5bc 4cc3 9750 Address of ae User manual Name 21602450364 Intenalip 14427194215 Date of Creation 09 23 2012 16 05 50 Plan Monthly Plan Eg ucloud CPU 4 Core 2 00 GHz Memory 4 00 GB Simple monthly Calculator 0S Other PY 64 bit State rire Total 100 00 GB Classification server 3 Sep 25 2012 Name Type Capacity Date of Creation Create Snapshot Image ROOT 40880 Root 20 00 GB 09 23 2012 16 05 51 Foram DATA 40880 Data 80 00 GB 09 23 2012 16 05 51 HA Create Snapshot ROOT 40880 s snapshot is created Enter Snapshot Name Snapshot Name Only include combination of English alphabet numbers and _ are enterable with 3 50 letters Create Snapshot it takes approximately 20 minutes on the 10GB basis of actual reserve of volume Size You will be notified via email upon completion Would you create ee hacia Create Snapshot Snapshot creation request is completed You can check the created snapshot on My Snapshot menu olleh ucloud biz ucloud server additional ucloud server My Snapshot select Account ifes nayer com Current state of service 2 C Server Name Yolumn Mame Snapshot name State Date of Creation Clou
5. previous submit Service Highlight Order Now Support olleh ucloud biz ucloud server additional ucloud server Disk Select Account artoflife3 naver com addastorage Current State of Service Select State Total Disk Name search Cloud Server Capacity My Snapshot detach Ad 00 GB hy Image Imag BOOT 41435 capdd connect 20 00 GB Network DAT Ad 1425 capdd connect 80 00 GB Network Traffic Statistics Check API Key Event DATA 41434 capimage connect 90 00 GB ROOT 41434 capimage connect 20 00 GB Group Management State is shown as Creating and it is changed into Separation upon completion of volume Disk creation You can use the created volume Disk by attaching to server VM you want with Connect to Server menu as below 5 Creating VM by utilizing user image You can create VM with created user image Service Highlight Order Now Support olleh ucloud biz ucloud server additional ucloud server My Image select Account artoflifesS naver com Current State of Service F Image Name OS Type State Date of Creatio ann oe Public huel Cloud Server Disk My Snapshot Network Network Traffic Statistics Check API Key i Event Server Application f Change the image name delete Group Management Details Image ID 08d 963e4 1f73 4d37 846d 599f6c 231bf2 ucloud server o User manual Image Size GB 1 95 GB snapshot Name testSnapshot ucloud Aft
6. d Server Disk 1 testhojin ROOT d0726 testSnapshot ize 2012 09 21 12 18 hy Image Network Network Traffic Statistics Check API Key El Event Change the snapshot name Create Disk delete Group Management Explanation ID 30d2d46d 26d6 42bd b1e5 f5f94t fala snapshot Type data volume ucloud server User manual volume Size GB 50 00 G6 0S Type SUSE Linus Enterpris State is shown as Waiting and it is changed into Use upon completion of snapshot creation X Wa rning Please refer to from page 14 of this manual or Creation and restoration guide of snapshot on Data volume composed with Linux LVM on Customer Center _ Library for creation and restoration of snapshot on data volume composed with Linux LVM 2 Direct creation of Image on VM Image on root volume can be directly created from VM X Warning The service available only when VM is stopped ucloud server Cloud server Select Account art naver com addaserver Current State of Service Select State Total Server Name Cloud Server Specification Console Disk Type server Name Os state CPU RAM hen 4vCore 400GB ME My Snapshot server 123 Other PY 64 bit My Image PServer testServer2 SUSE Linux Enterprise Server 11 32 fi Network Network Traffic Statistics Check AFI Key Event Group Management start Ji delete change P W change charge plan Expla
7. er selecting image on the list of create images to create VM click Request Server button OS type is selected the same with image type Request VM creation by entering server stipulation server specification and server name Subsequent operations of server creation are identical with those of ucloud server creation Go to Cloud Server page check creation state of requested VM and get password for VM returned X Although identical VM is created Private IP and part of VM s config information is subject to change OG Apply cloud server 01 02 Select cloudserver Confirm OS spec VAT excluded pe Classification Type SUSE Linux Defaut 0S Enterprise Serveri1 130000 won month 217 won hour SP1 32bit Select server Monthly Plan hourly plan WAT excluded Apply cloud server 01 select cloudserver Check for Service History Unit wonfmonth VAT excluded aes os My image SUSE Linux Enterprise Server11 SP1 32bit 130000 won month sacs baa You selected the product above as monthly plan Billed 235 000won month Would you request a cloud server with selected details above Previous submit Check Cloud Server Request Would you request a cloud server Notices Defaut password is created in creating server Please wait until the completion of creation t may take 10 minutes at maximum to create a Server Password will be sent when creation of cloud server is completed
8. h created snapshot After selecting snapshot for volume Disk creation and clicking Create Disk button create volume Service Highlight Order Now Support clleh ucloud biz ucloud server additional ucloud server My Snapshot Select Account artoflife3 nayer com Current State of Service server Mame Yoluma Mame snapshot name state Date of Creation Cloud Server Disk My Snapshot testhojin ROOT 40726 testSnapshot hy Image Network Network Traffic Statistics Check API Key E Event sreating Ima Change the snapshot name f Create Disk delete Group Management Details ID 30d2d46d z6d6 42bd b1e54994 falat snapshot Type data volume ucloud server User manual Volume Size GB Ad 00 GE OS Type SUSE Linus Enterpris Snapshot Size GB 211 MB ucloud Enter plan options monthly or hourly rate and storage name Volume Disk capacity is sized as same as that of disk creating snapshot Volume storage applications 01 o lect Volume storage Select Product VAT Excluded Price per 106GB 1 200won month per 10GB 26won 10hours Storage Capaciy0 00 GB ane conten Only English alphabet and numbers enterable 25Byte After checking duplication select Next Volume storage applications 01 Select Volume storage Request Storage Rate of Product Use YAT Excluded Storage Capacity Plan Request Details Payment Amount 50 00 GE Monthly Plan 6 000won month
9. nation ucloud server Server testServer2 1140696d 5162 7 Address of User manual Name 4534 bc63 901519 cac12 Intenal IP 12 27 1352 107 eup por forwarding Date of mia ereatcn O9f2 1 2012 1349 33 Plan Monthly Flan ucloud CFU 1 vCore 2 00 GHz Memory 1 00 GE Simple monthly Calculator Os SUSE Linux Enterprise Server 11 32 bit State Service Rate Disk Total 150 00 GE add Disk Classification server 1 USD 1119 Won Sep 25 2012 Name Type Capacity Date of Creation Create Snapshot lmage dd Data 50 00 GE 09 23 2012 13 11 16 Snapshot ROGOT 40745 Raat 20 00 GE O9 21 2012 13 43 33 Snapshot O 0 2 DAT A d07ds Data 80 00 GE O9f21 2012 13 43 33 Snapshot Refer to the following guide in 3 Creating user image on created snapshot for subsequent procedures 3 Creating user image on created snapshot You can create user image with created snapshot After selecting snapshot to create image root disk taken as snapshot available only for volumes named ROOT and clicking Create Image create user image olleh ucloud biz ucloud server additional ucloud server My Snapshot Select Account artoflites naver com Current State of Service E server Name Volumn Name snapshot name State Date of Creation Cloud Server E testhojin testhojinDisk testsnapshat ZE 2012 09 21 12 03 E Disk MySnapshot be i testhojin ROOT d0r2e testSnapshat e 2012 09 21 1418 hy Image Network Network Traffic Statistics Check API Key i
10. s rpc_pipefs type rpc_pipefs rw After checking an existing mounted LV with the command of mount umount it Check it is umount with the command of mount again lvchange root TestServer a Change state of LV by entering lvchange a n LV route Disconnect from disk server ucloud server Disk Select Account ar naver com 7 BOC pore Current State of Service Select State Total gt Disk Name Cloud Server d Capacity Type Disk Name Applied Server ee e A My Snapshot ROOT 41420 testImage 20 00 GB My Image a DATA 41420 testimage connec 80 00 GB Network ROOT d0880 123 connec 20 00 GB Network Traffic Statistics oT DATA 40880 123 connec 80 00 GB Check API Key Event I testServer2 connec 50 00 GB gt Group Management cnal Ige charge pian Details ucloud server User manual Disk Name Plan Monthly Plan Applied server Date of Creation ucloud Capacity 50 00 GB Classification server Simple monthly Calculator Management console gt Disk gt Select the relevant disk gt Click Disconnect from Server button testServer2 09 23 2012 13 11 16 u clo U d se rve r Select Account artotlitese nayver com Current State of Service ka Disk Hame search Cloud Server Disk Disk Name Applied Server State My snapshot ROOT 41420 testiImage My Image Network Disconnect from Server Network Traffic Statistics Check AFI Key Event Would you di
11. sconnect from the cloud server connect Group Management ucloud server release cancel User manual testServere 03232012 1311 16 Creation Disconnect the connected disk by clicking Make Cancellation
12. ucloud server Snapshot Image Create Volume Service Manual I Information on Service This chapter describes service on how to restore newly create VM Virtual Machine by using snapshot and images created with snapshot and how to attach detach VM by creating additional volume Major functions and characteristics are introduced 1 Service outline Snapshot has a function of saving the current state of VM disk volumes making a user return to the saved state of snapshot whenever required and enabling creation of image and volume Information on VM can be backed up and restored in a short time and all the settings and data of server can also be saved Image is service enabling VM to be newly composed with the same state in creating image or snapshot Create volume is service to create add a new volume by using created snapshot and to attach detach to VM to be used 1 1 Major functions Creting root of ucloud server VM data disk volume snapshot gt First snapshot on volume is subject to Full snapshot from second one to Incremental snapshot gt Full snapshot is again executed on every eighth one in the same volume later on gt Example 1st time Full snapshot 2nd 7th Incremental snapshot 8th Full snapshot 9th 14th Incremental snapshot 15th Full snapshot User image creation gt Image can be created with created snapshot gt Image can also be created directly from VM
13. um five disks with 300GB can be attached to one VM t is OK to make individual File system on each Data Disk but LVM is composed and used if bigger space is needed on single mount point How to compose LVM Refer to ucloud server user manual https ucloudbiz olleh com en us manual ucloud_server_UserManual_v2 1 pdf Creation and restoration of snapshot on LVM By using snapshot function of ucloud server backup of Disk at a particular timing and copy of identical Disk on the created snapshot basis can be created When using by composing LV with various Disks restoration of snapshot based volume can be performed only if snapshots are simultaneously created on each Disk For creating restorable snapshots compatibility should be maintained by stopping VM or unmounting LV so that there is no IO I O In progress I O completed _ Sa e a snapshot a gt text E create volume a Sa Figure 1 Compatibility problem of data occurs when creating Snapshot during I O process C How to restructure LVM volume f snapshots composed with LVM are attached to volume you can check the relevant LV through lvdisplay If the relevant LV cannot be used because it is not active you can use it by making active with the command of Ivchange lvchange ay dev your_lvm lvm_name O Notices for creating snapshot and volume of LVM As in Figure 1 compatibility problem occurs in restoration if snapshot is executed d
14. uring I O occurrence For creating restorable snapshots by meeting compatibility conditions it should be progressed when LV is unmount and IO does not occur Snapshots should be created to all disks composed with LVM at this time When mounting LVM snapshot volume on the same VM errors occur due to metadata duplication Found duplicate PV uuid using dev xx not dev yy Disk cannot be normally operated when the message appears Therefore mount an existing disk after detaching LVM disable in Detaching lvchange an dev your_lvm lvm_name C Others How to remove LVM volume Used LV should be inactivated as below to normally detach volume 1 umount root TestServer mount dev mapper VolGroup00 LogVol00 on type ext3 rw proc on proc type proc rw sysfs on sys type sysfs rw devpts on dev pts type devpts rw gid 5 mode 620 dev xvda1 on boot type ext3 rw tmpfs on dev shm type tmpfs rw none on proc sys fs binfmt_misc type binfmt_misc rw sunrpc on var lib nfs rpc_pipefs type rpc_pipefs rw dev mapper TestVG backup on backup type ext3 rw root TestServer root TestServer dev mapper VolGroup00 LogVol00 on type ext3 rw proc on proc type proc rw sysfs on sys type sysfs rw devpts on dev pts type devpts rw gid 5 mode 620 dev xvda1 on boot type ext3 rw tmpfs on dev shm type tmpfs rw none on proc sys fs binfmt_misc type binfmt_misc rw sunrpc on var lib nf
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