Deleting A Primary Logical Drive Or A Secondary Logical Drive; Disabling The Enhanced Remote Mirroring Feature; Deactivating The Enhanced Remote Mirroring Feature; Interaction With Other Features - IBM System Storage DS3000 Programming Manual

To re-establish the link between a primary logical drive and a secondary logical drive, use the create
remoteMirror command.

Deleting a Primary Logical Drive or a Secondary Logical Drive

Use the delete logicalDrive command to remove a primary logical drive or a secondary logical drive
from a storage subsystem. Deleting a logical drive in a mirror relationship removes the mirror
relationship and completely deletes the logical drive from the storage subsystem. You cannot redefine the
mirror relationship until you create a new logical drive or choose an alternate logical drive to replace the
deleted logical drive.
Attention: Possible loss of data access – Deleting a primary logical drive or a secondary logical drive
permanently removes the data from the storage subsystem.

Disabling the Enhanced Remote Mirroring Feature

You disable the Enhanced Remote Mirroring feature to prevent the new mirror relationship from being
created. When you disable the Enhanced Remote Mirroring feature, the feature is in a Disabled/Active
state. In this state, you can maintain and manage previously existing mirror relationships; however, you
cannot create new relationships. To disable the Enhanced Remote Mirroring feature, use this command:
disable storageSubsystem feature=remoteMirror

Deactivating the Enhanced Remote Mirroring Feature

If you no longer require the Enhanced Remote Mirroring feature and you have removed all of the mirror
relationships, you can deactivate the feature. Deactivating the feature re establishes the normal use of
dedicated ports on both storage subsystems and deletes both mirror repository logical drives. To
deactivate the Enhanced Remote Mirroring feature, use this command:
deactivate storageSubsystem feature=remoteMirror

Interaction with Other Features

You can run the Enhanced Remote Mirroring feature while running these premium features:
v Storage Partitioning
v FlashCopy Logical Drive
v VolumeCopy
When you run the Enhanced Remote Mirroring feature with other premium features, you must consider
the requirements of the other premium features to help make sure that you set up a stable storage
subsystem configuration.
In addition to running with the premium features, you can also run the Enhanced Remote Mirroring
feature while running Dynamic Volume Expansion (DVE).

Storage Partitioning

Storage Partitioning is a premium feature that lets hosts share access to logical drives in a storage
subsystem. You create a storage partition when you define any of these logical components in a storage
subsystem:
v A host
v A host group
v A Volume-to-LUN mapping
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Chapter 8. About Enhanced Remote Mirroring premium feature