1.
In the Remote Web Console main window, in the
Storage Systems
tree, select
Pool
.
The pool name appears below
Pool
.
2.
From the
Pool
table, select the pool to be recovered.
3.
Click
More Actions
, then select
Restore Pools
.
4.
In the
Confirm
window, confirm the settings, in
Task Name
type a unique name for this task
or accept the default, then click
Apply
.
If
Go to tasks window for status
is checked, the
Tasks
window opens.
The recovery time for pools varies depending on pool usage or THP V-VOL usage. Allow roughly
20 minutes of recovery time for every 100 TB of pool or THP V-VOL usage. Recovery time may
vary depending on the workload of the storage system at the time of recovery.
Decrease pool capacity
About decreasing pool capacity
You can decrease pool capacity by deleting pool-VOLs.
When a pool-VOL is removed from a pool, all the used pages in the pool-VOL are moved to other
pool-VOLs.
When you delete a pool or decrease the pool capacity, the released pool-VOLs (LDEVs) will be
blocked. If they are blocked, format them before using them. If the blocked pool-VOL is an external
volume, use Normal Format when formatting the volume.
You can decrease pool capacity for up to eight tasks at the same time. Do not execute a RAID
Manager command to also decrease the capacity of the pool whose capacity is already in the
process of being decreased.
You cannot decrease pool capacity while doing any of the following to a pool.
•
Creating the pool.
•
Deleting the pool.
•
Increasing the pool.
•
Decreasing the pool.
•
Recovering the pool.
•
Stopping decreasing the pool.
•
Changing the threshold.
•
Reclaiming zero pages.
•
Creating THP V-VOLs.
•
Increasing THP V-VOL capacity.
While the pool capacity is being decreased, if maintenance of cache memory is performed, if the
cache memory fails, or if the I/O load to the THP V-VOL related to the pool is high, decreasing
the pool capacity process might fail. In this case, check the
Tasks
window to determine whether
processing has abnormally ended.
If the processing has ended abnormally, restore the cache memory, then try decreasing the pool
capacity again.
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Configuring thin provisioning