Hitachi AMS2100 User Manual page 72

Table 2-4: Pair Statuses before/after the DP Pool Capacity Depletion
Pair Statuses before the DP
Pool Capacity Depletion
Simplex
Reverse Synchronizing
Paired
Split
Failure
NOTE: When write is performed to the P-VOL or V-VOL to which the
capacity depletion DP pool belongs, the copy cannot be continued and the
pair status becomes a Failure.
Table 2-5: DP Pool Statuses and Availability of SnapShot Pair Operation
Pair Operation
Create pair 0
Create pair 0
(split option)
2-20
Hitachi AMS 2000 Family Copy-on-Write SnapShot User Guide
When the DP pool is depleted after operating the SnapShot pair
that uses the DP-VOL created by Dynamic Provisioning, the pair
status of the pair concerned may be a Failure.
the pair statuses before and after the DP pool capacity depletion.
When the pair status becomes a Failure caused by the DP pool
capacity depletion, add the DP pool capacity whose capacity is
depleted, and execute the pair operation again.
Pair Statuses after the
Depletion belonging to
Simplex
Reverse Synchronizing
Failure (See Note)
Paired
Split
Failure (See Note)
Failure
• DP pool status and availability of pair operation
When using the DP-VOL created by Dynamic Provisioning for a P-
VOL or a data pool of the SnapShot pair, the pair operation may
not be executed depending on the status of the DP pool to which
the DP-VOL belongs.
availability of the SnapShot pair operation. When the pair
operation fails due to the DP pool status, correct the DP pool
status and execute the pair operation again.
DP Pool Statuses, DP Pool Capacity Statuses, and DP Pool Optimization
Capacity in
Normal
Growth
0
0
Planning and design
DP Pool Capacity
P-VOL
Table 2-5 shows the DP pool status and
Statuses
Capacity
Regressed
Depletion
x 0
x 0
Table 2-4 shows
Pair Statuses after the DP
Pool Capacity Depletion
belonging to data pool
Simplex
Reverse Synchronizing
Failure (See Note)
Paired
Split
Failure (See Note)
Failure
DP in
Blocked Optimization
x 0
x 0