You can unconfigure a storage system by removing all of
the elements of the storage configuration.
Before you begin
Remove or backup all of the data that is stored on the storage
system. Ensure that any data left on the storage system is no longer
needed. Ensure that the host is no longer sending I/O to volumes before
you begin this task.
Procedure
Complete the following steps in the DS8000
Storage Management GUI to
unconfigure the storage system.
- If you have fixed block (FB) volumes that are connected
to an open systems host, unmap the volumes from the host by using
the Unmap All Volumes action on the Volumes
by Host page.
- Remove all hosts by using the Remove action
on the Hosts page.
-
Remove any Copy Services relationships from the volumes. This step must be completed by using
the DS command-line interface (DS CLI).
- Delete all volumes by using the Delete action
on the Volumes page.
Note: Aliases
that are assigned to count key data (CKD) volumes are deleted automatically.
- If you have CKD logical subsystems (LSSs) on the storage
system, delete all LSSs by using the Delete action
on the Volumes by LSS page.
Note: LSS is synonymous with logical control unit (LCU) and subsystem identification (SSID).
- Delete all pools by using the Delete action
on the Arrays by Pool page.
When the
pools are deleted, all arrays are automatically unassigned and formatted.
When an array is formatted, the RAID level and storage type are unconfigured
and secure erase removes all data from the drives in the array.
- Optional: If remote authentication is enabled,
clear the remote authentication policy settings by using the DS CLI.
- Optional:
If encryption is enabled, disable encryption on the Encryption tab of
the Security settings page.
- Optional: If multitenancy scopes are used on
the storage system, delete the multitenancy scope settings by using
the DS CLI.
- Optional:
Disable Easy Tier settings on the Easy Tier tab of the System
settings page.
- Optional:
Remove all users, except for one administrator and one security administrator, by using the
Remove action on the Users page.
- Optional:
Reset the passwords for the remaining administrator and security administrator, by using the
Reset Password action on the Users page.