Chapter 11. External storage virtualization 659
To remove the external storage systems from the IBM Storwize V5030 control and keep
the volumes and their data on other external storage systems, complete the following
steps:
a. Migrate volumes and their data to other internal or external storage pools on the IBM
Storwize V5030, as described in Chapter 7, “Storage migration” on page 349.
b. Remove the storage pools to which the original external storage systems belong, or
you can keep the storage pools and remove the MDisks of that external storage from
the storage pools.
c. Export the volumes that were migrated in step a to image mode with the new MDisks
on the target external storage systems. For more information about the restrictions and
prerequisites for migration, see Chapter 7, “Storage migration” on page 349.
You must record pre-migration information, for example, the original Small Computer
System Interface (SCSI) identifiers (IDs) that the volumes used when they were
mapped to hosts. Certain operating systems do not support a change of the SCSI ID
during migration. Unzone and disconnect the external storage systems from the IBM
Storwize V5030.
d. Click Detect MDisks for the IBM Storwize V5030 to discover the removal of the
external storage systems.
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