IBM V系统存储 hyperswap实施手册英文文档格式.docx

1、修订日期修订前版本号V1.0整体文档的编写2016.12.23注：技术交流邮箱 一、Configuring an IBM HyperSwap topology systemA HyperSwap topology system assists with high availability and site disaster recovery. A HyperSwap topology system can be configured through site allocation and topology change command-line （CLI） commands. The mana

2、gement GUI configures a HyperSwap topology with the Modify System Topology wizard, which guides you through all the steps easily.1.1 About this taskTo access the Modify System Topology wizard, select Monitoring System. In the Actions menu, select Modify System Topology. Configuring site information

3、for the systemTo configure a HyperSwap system topology, you must assign enclosures, external storage systems, and hosts to a specific site. Creating HyperSwap volumesYou can use the management GUI or the command-line interface （CLI） to create HyperSwap volumes. A HyperSwap volume has one copy on eac

4、h site. Converting an existing volume to a HyperSwap volumeYou can use the management GUI or the command-line interface to convert a basic volume to a HyperSwap volume. You convert the basic volume by adding another copy of the volume in a second site. 二、Configuring site information for the system T

5、o configure a HyperSwap system topology, you must assign enclosures, external storage systems, and hosts to a specific site.2.1 Using the management GUIYou can use the Modify System Topology wizard in the management GUI to easily configure the site names and assign objects on your system to a site.

6、The Modify Topology wizard automatically detects any Fibre Channel-attached storage, but iSCSI storage must be added manually before the site assignments can be configured. You can use either the management GUI or the command-line interface to add Storwize systems. Dell EqualLogfic systems can be co

7、nfigured with the command-line interface only. Complete the following steps to configure the topology for the system and to optionally add iSCSI-attached storage:1. In the management GUI, select Monitoring System. In the Actions menu, select Modify System Topology.2. Follow the wizard to complete th

8、e configuration of the HyperSwap topology. 3. If you are using iSCSI-attached external storage, you must add the storage to the system and specify the site using the Add iSCSI External Storage wizard. To access the wizard, select Pools External Storage Add iSCSI External Storage. 4. Select IBM Storw

9、ize as the external storage system that you are adding. The system supports iSCSI connections to Storwize family products and to Dell Equallogic systems, but you must configure Dell EqualLogic systems with the command-line interface. 5. Enter the information for the source and target ports for the i

10、SCSI connection and specify the site for the iSCSI-attached storage.2.2 Using the CLIYou can also use the command-line interface to configure site information and configure the system as a HyperSwap topology. Separate commands are used for each configuring site definitions for the necessary objects

11、on the system. Although you do not need to name sites, creating names that are based on the location or use of the site simplifies management of the HyperSwap topology. Complete the following steps to configure site information and set the system as a HyperSwap topology:1. For easier management of t

12、he HyperSwap topology, create specific names for each site on the system. If names are not specified, sites can be referred to by their default name or numeric ID. Enter the following command to create specific names for each site. chsite -name losangeles 1In this example, site 1 is now named losang

13、eles. To rename the other sites in the HyperSwap topology, issue the same command with names for the other sites:chsite -name sandiego 2chsite -name quorum 3In this example, site 2 is now named sandiego and site 3 is named quorum. Note: IP quorum applications can be used at a third site to provide a

14、 tie-break if there is a loss of connectivity between site 1 and site 2. For more information, see the IP quorum configuration information.2. Enter the following commands to assign existing node canisters in each control enclosure （I/O group） to sites:chnodecanister -site losangeles canister1chnodec

15、anister -site losangeles canister2Both node canisters in a control enclosure must be assigned to the same site. In this example, the I/O group that contains canister1 and canister2 are assigned to the site losangeles. To assign the node canisters in another I/O group to the other site, enter the fol

16、lowing commands:chnodecanister -site sandiego canister3chnodecanister -site sandiego canister4In this example, the I/O group that contains canister3 and canister4 are assigned to the site sandiego. You must assign a site for all node canisters in the system.3. Enter the following command to assign e

17、xisting external storage systems to sites: chcontroller site losangeles storagesystem1In this example, storagesystem1 is assigned to site losangeles. To assign a storage system to the other site, enter the following command:chcontroller site sandiego storagesystem2In this example, storagesystem2 is

18、assigned to site sandiego. If you plan to use an external storage system to provide quorum, then you must assign that to the third site. Alternatively, an IP quorum application can be used to provide quorum. For more information, see the IP quorum configuration information. To assign an external sto

19、rage system to the third site, enter the following command:chcontroller site quorum storagesystem3In this example, storagesystem3 is assigned to site quorum.You must assign a site for all storage systems that are present in the configuration.4. Enter the following command to assign existing hosts to

20、 sites:chhost -site losangeles host1In this example, host1 is assigned to site losangeles. If you have other hosts, you can assign them to other sites:chhost -site sandiego host2In this example, host2 is assigned to site sandiego. 5. After all the site assignments are complete for enclosures, storag

21、e systems, and hosts, set the system topology to HyperSwap by entering the following command:chsystem -topology hyperswap6. Optionally, configure bandwidth settings for the background copy operations between each site by entering the following command:chpartnership -linkbandwidthmbits 2048 -backgrou

22、ndcopyrate 50 mysystemBackground copy is the term that is used for the initial synchronization and any subsequent resynchronization traffic for HyperSwap volumes in the system. After you complete these steps, you can configure HyperSwap volumes to create copies at each site. 2.3 Configuring an exter

23、nal iSCSI controller using the CLIAfter you change the system topology to hyperswap and nodes are assigned sites, you can configure an external iSCSI controller by completing the following steps. 1. From the nodes of site 1, discover the iSCSI target controller:2. detectiscsistorageportcandidate src

24、portid 1 -targetip IP1 -site 1 3. Check the status of the discovered targets:4. lsiscsistorageportcandidate id src_port_id target_ipv4 | target_ipv65. target_iscsiname iogroup_list configured status site_id site_name 0 1 IP1 IQN1 1:1:1 no Full 1 site16. From the nodes of site 1, add a session to the

25、 discovered targets:addiscsitorageport -site 1 07. From the nodes of site 1, view the established sessions with the target:8. id src_port_id target_ipv4 | target_ipv6 target_iscsiname9. controller_id iogroup_list status site_id site_name 0 3 IP1 IQN1 5 1:1 full 1 site110. The new controller can be s

26、hown as available by entering the lscontroller command. Assign a site:chcontroller -site 1 controllerID11. From the system nodes of site 2, repeat steps 1 through 5 for discovering and establishing sessions to the same iSCSI controller or a different iSCSI controller. 三、Creating HyperSwap volumesYou

27、 can use the management GUI or the command-line interface （CLI） to create HyperSwap volumes. A HyperSwap volume has one copy on each site.3.1 Before you beginBefore you create HyperSwap volumes, you must configure the HyperSwap topology. See Configuring site information for the system for directions

28、.3.2 About this taskAfter you configure the HyperSwap topology, complete one of the following steps.3.3 Procedure1. If you are using the management GUI, use the Create Volumes wizard to create HyperSwap volumes. 2. If you are using the command-line interface, use the mkvolume command to create a vol

29、ume. For example, a HyperSwap volume is created by specifying two storage pools in independent sites. mkvolume -size 100 -pool site1pool:site2pool四、Converting an existing volume to a HyperSwap volumeYou can use the management GUI or the command-line interface to convert a basic volume to a HyperSwap

30、 volume. You convert the basic volume by adding another copy of the volume in a second site. 4.1 Before you beginBefore you add a copy of the volume, the system must be configured with the HyperSwap system topology. 4.2 About this taskUsing the management GUI:To change a basic volume to a HyperSwap

31、volume in the management GUI, select Volumes, right-click the basic volume, and select Add Volume Copies. Add a copy in a different site to the existing copy.Using the command-line interface （CLI）:In the CLI, the addvolumecopy command adds a copy to a HyperSwap volume, which changes a basic volume into a HyperSwap volume with copies on two separate sites. To add a copy to a basic volume to convert it to a HyperSwap volume, enter the following command:addvolumecopy -pool site2pool volume5In this example, site2pool is the storage pool on