Data retention utility, Auto lun, Business copy – HP StorageWorks XP Remote Web Console Software User Manual
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Data Retention Utility
Data Retention Utility can set four different kinds of access attributes on the volumes: Read/Write, Read
Only, Protect, and S-VOL Disable. XP Snapshot cannot create a pair by specifying a volume whose
access attribute is S-VOL Disable as the S-VOL. In addition, if the S-VOL Disable attribute is set on the
P-VOL of the XP Snapshot pair, you cannot restore the pair.
By using Data Retention Utility, you can set the Read/Write, Read Only, Protect, or S-VOL Disable
attribute on the volumes that are already used by the XP Snapshot pairs. However, when the pair is in the
following status, you cannot set the S-VOL Disable attribute on the pair volumes:
•
COPY*
•
SMPL(PD)*
•
COPY(RS)*
•
COPY(RS-R)
•
PSUE*
Note*:
You can set S-VOL Disable on the P-VOL even if the pair status is COPY, SMPL(PD), COPY(RS), or
PSUE.
For detailed information about setting the access attribute, see the HP StorageWorks XP24000 Data
Retention Utility User’s Guide.
Auto LUN
Regardless of the status of the migration plans of Auto LUN, you cannot perform any XP Snapshot
operations on a volume that is used by the migration plan. In order to use an XP Snapshot P-VOL as the
source volume for the migration plan, you need to create the XP Snapshot pair first, and then create the
migration plan.
When the XP Snapshot P-VOL and the source volume for the migration plan are shared, you can execute
the migration plan only when the XP Snapshot pair is in PAIR status. Deleting and canceling the migration
plan are always allowed. These operations are not affected by the XP Snapshot pair status.
For detailed information about the status of the migration plan and Auto LUN operations, see the HP
StorageWorks XP24000 Auto LUN Software User's Guide.
Business Copy
When the XP Snapshot P-VOL and the volume of a Business Copy pair are shared, the relationship
between the Business Copy pair status and XP Snapshot operations is as shown in
and
Table 5 XP Snapshot Operations When XP Snapshot P-VOL and Business Copy P-VOL
Are Shared
XP Snapshot Operations
Business Copy Pair Status
COPY PAIR COPY
PSUS PSUS COPY
COPY PSUE
(SP)
(SP)
(RS)
(RS-R)
Creating
pairs
(paircreate)
OK
OK
OK
OK
OK
OK
No
OK
Storing snapshot data
(pairsplit)
NA
OK
OK
OK
OK
OK
No
OK
Restoring pairs (pairresync
−restore)
NA
No
No
No
OK
No
No
OK
Deleting snapshot data
(pairresync)
NA
OK
OK
OK
OK
OK
OK
OK
Deleting pairs (pairsplit −S)
NA
OK
OK
OK
OK
OK
OK
OK
XP24000 Snapshot User's Guide
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