Subscribe to this informationPreparing the virtual SCSI configuration for partition mobility
You need to verify that the virtual SCSI configuration is configured correctly so that you can successfully move the mobile partition from the source server to the destination server by using the Hardware Management Console (HMC). This includes tasks such as verifying the reserve_policy of the physical volumes, and verifying that the virtual devices have the same unique identifier, physical identifier, or IEEE volume attribute.
The destination server must provide the same virtual SCSI configuration as the source server. In this configuration, the mobile partition can access its physical storage on the storage area network (SAN) after it moves to the destination server.
The Peer-to-Peer Remote Copy (PPRC) feature is supported on the virtual target device. The hardware-based disaster recovery solutions Global Mirror and Metro Mirror are based on PPRC. These solutions provide real-time mirroring of disks within an Enterprise Storage Server® or between two distant Enterprise Storage Servers.
To prepare the virtual SCSI configuration for active or inactive partition mobility, complete the following tasks.
| Storage planning tasks | Active mobility task | Inactive mobility task | Information resources |
|---|---|---|---|
| 1. Verify that the physical storage that is used by the mobile partition is assigned to at least one Virtual I/O Server (VIOS) partition on the source server and to at least one VIOS partition on the destination server. | X | X | IBM® System Storage® SAN Volume Controller |
| 2. Verify that the reserve attributes on the physical volumes are the same for the source and destination VIOS partitions. | X | X | Setting the reserve policy attributes of a device |
| 3. Verify that the virtual devices have the same unique identifier, physical identifier, or an IEEE volume attribute. | X | X | Identifying exportable disks |
| 4. Verify that the virtual SCSI adapters on the mobile partition can access the virtual SCSI adapters on the source VIOS partition. | X | X | Verifying the virtual adapter connections between the mobile partition and the Virtual I/O Server logical partitions on the source server |
| 5. Optional: Specify a new name for one or more virtual target devices to use on the destination VIOS partition. | X | X | Specifying a new name for a virtual target device to use on a destination VIOS partition |
| 6. Verify that the mobile partition has access to the physical storage on the SAN. | X | X | Verifying that the mobile partition has access to its physical storage |
| 7. If you changed any partition profile attributes, restart the mobile partition for the new values to take effect. | X | X | Shutting down and restarting logical partitions |
