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IBM V系统存储 hyperswap实施手册文档信息(文档编号IBM SVC-70)文挡名称作者电话QQIBM V系统存储 hyperswap实施手册朱亚铭13951968365150111099文档修订记录编号修订内容简述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 ymzhu2005163.com一、Configuring an IBM HyperSwap topology system窗体顶端窗体底端A 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 management 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 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 each 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 窗体顶端窗体底端To 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. 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 configured 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 the 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 Storwize 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 iSCSI 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 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 the 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 losangeles. 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 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 canister1chnodecanister -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 following commands:chnodecanister -site sandiego canister3chnodecanister -site sandiego canister4In this example, the I/O group that contains
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