3.1. Creating the VSS_Free and VSS_Reserved Pools on IBM Systems Storage DS8100

This task creates the free volume pool (VSS_FREE Volume Group) and the reserved volume pool (VSS_RESERVED Volume Group) that are used to assign volumes to the virtual host. Before you can use the IBM System Storage support for Microsoft Volume Shadow Copy Service and Virtual Disk Service software, you must specify the volumes that can be used as FlashCopy target volumes. You specify the volumes after you create a VSS_FREE pool and a VSS_RESERVED pool. These pools are represented by virtual hosts that are created on the storage unit. After the virtual hosts are created, you can add volumes to the free pool by assigning a volume to the virtual host. Perform the following steps using the IBM System Storage DS Storage Manager or DS CLI to create the VSS_FREE and VSS_RESERVED pools:

Important: If you are using the DS CLI, you must perform these steps in order.

1. Create a volume group with the name VSS_FREE or a name that is the same type as the Windows Server 2003 or Windows Server 2008 host. For example, SCSI Map 256.

2. Use the following parameters to create a virtual hostconnect on the storage unit that is named VSS_FREE or another name:

-profile Intel – Windows 2003

where Intel – Windows 2003 is the profile to use for the connection.

-addrdiscovery LUNPolling

-volgrp

where volgrp is the name of the volume group you created in step 1.

-wwname 5000000000000000

3. Create a volume group with the name VSS_RESERVED or a name that is the same type as the Windows Server 2003 or Windows Server 2008 host. For example, SCSI Map 256.

4. Use the following parameters to create a virtual hostconnect on the storage unit that is named VSS_RESERVED or another name:

-profile Intel – Windows 2003

where Intel – Windows 2003 is the profile to use for the connection.

-addrdiscovery LUNPolling

-volgrp

where volgrp is the name of the volume group you created in step 3.

-wwname 5000000000000001

5. Create and assign free volumes to the VSS_FREE volume group.

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Note.1: If you already have volumes that are created for the VSS_FREE virtual host, you must assign those volumes to VSS_FREE.

Note.2: The created volumes must be of equivelant size to the volumes you are planning to backup using IBM Tivoli FlashCopy Manager.

Note.3: IBM VDS will identify the designated volume groups & volumes using the virtual host adapters WWN addresses. By default VSS_FREE 5000000000000000 & VSS_RESERVED 5000000000000001 as shown in the configuration in the previous steps. Although its possible to change these addresses, its recommended to stick with the default unless you have these addresses already exist in your environment.

Back to: IBM Tivoli Storage FlashCopy Manager Tutorial Index





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