HP XP20000XP24000 Disk Array - Manual (Page 16)

Old
Target
Volume
Old
Source
Volume
Hosts cannot access device. Hosts can access device.
LDEV ID = 0x123 LDEV ID = 0x321 Reserved
Figure 8 Data Flow after an Auto LUN Operation
Note: Immediately after a volume to be migrated and a volume of a migration destination replace each
other, RAID level before the replacement might be displayed or an internal error might occur in the
storage system. In this case, select the Refresh button to update the display of the window.
Interoperability with Other Products
Auto LUN
The requirements and restrictions for performing Auto LUN operations are:
• User types. If the user type of your user ID is storage partition administrator, you cannot use Auto
LUN. For details on the limitations when using Performance Monitor logged in as a storage
partition administrator, see the HP StorageWorks XP24000 Performance Monitor User's Guide.
• Combinations of volumes. The source and target volumes must be managed by the same storage
system. (An external volume can be used for source or target volume.)
Also, a combination of source and target volumes should satisfy the following conditions:
• The
LDKC:CU:LDEV numbers of volumes take the value between 00:00:00 and 00:FE:FF or
between 01:00:00 and 01:FE:FF.
• The source and target volumes have the same emulation type and capacity.
• If the emulation type is not OPEN-V, both the source and target volumes are custom-sized
volume (CV), or both the volumes are normal volumes.
Specify the volumes that satisfy the conditions above as the source and target volumes. The source
and target volumes must be specified by LDEV ID, not VOLSER or port/TID/LUN.
• Source volumes. The following volumes cannot be used as source volumes:
• Volumes set as command devices (reserved for use by the host).
• Volumes which are in an abnormal or inaccessible condition (for example, pinned track,
fenced).
• Volumes used by the IBM 3990 Concurrent Copy (CC) host software function.
• Volumes which have HP StorageWorks XP Cache Residency Manager data or Cache
Residency Manager for Mainframe data stored in cache.
• Volumes used by HP StorageWorks XP Continuous Access Journal Software or Universal
Replicator for Mainframe as a journal volume.
• Volumes which are reserved by a migration program other than Auto LUN.
• Volumes on which RAID Manager is performing volume migration operation.
• Volumes that form an HP StorageWorks XP Snapshot pair.
• Virtual volumes and pool volumes that are used by XP Snapshot.
• Virtual volumes and pool volumes that are used by HP StorageWorks XP Thin Provisioning.
• Volumes being shredded.
16 About Auto LUN Operations