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SnapShot Specifications B–3
Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide
Reduction of data pool
capacity
Possible only when all the pairs that use
the data pool have been released.
Expansion of data pool volume No.
Formatting of volumes in a
pair
No.
Pairing with an expanded
volume
Only P-VOL can be expanded
Formatting or expanding V-
VOL
No.
Deletion of the V-VOL Only possible when P-VOL and V-VOL are
in simplex status and not paired.
Swap V-VOL for P-VOL No.
Concurrent use with
ShadowImage
SnapShot and ShadowImage can be used
at the same time on the same array.
However, SnapShot volumes cannot be
paired with ShadowImage volumes.
SnapShot use with expanded
volumes
Yes.
Concurrent use with LUN
Manager
Yes.
Concurrent use with Password
Protection
Yes.
Potential effect caused by a P-
VOL failure
V-VOL data also exists in the P-VOL,
therefore P-VOL failure results in a V-VOL
failure also.
Table B-1: General Specifications
Item Specification