NOTE:
Following are cases that the formatted pool capacity may decrease:
•
New pages are being allocated.
•
LDEV format is being performed on the pool-VOL.
•
Correction copy is being executed.
Viewing the progress of rebalancing the usage level among parity groups
The Storage Administrator (Provisioning) role is required to perform this task.
1.
In the
Storage Systems
tree on the left pane of the top window, select
Pool
.
2.
From the
Pools
table on the right, click the row of a pool you want to confirm the progress of
rebalancing the usage level among parity groups.
3.
Click
More Actions
to select
View Pool Management Status
.
The
View Pool Management Status
window appears.
NOTE:
Following are cases that the progress ratio may not increase:
•
The usage level is being rebalanced among the parity groups in pools other than the selected
pool.
•
Tier relocation is performed.
Increasing pool capacity
The Storage Administrator (Provisioning) role is required to perform this task.
Adding the pool-VOL to the pool created for Thin Provisioning or Smart Tiers increases the pool
capacity. The amount of pool capacity registered in the pool represents the pool capacity. You
need to check the pool free capacity to determine if additional pool capacity is required. You
cannot increase the pool capacity while it is being shrunk.
Notes on using Thin Provisioning
•
The internal volume, and the external volume whose
Cache Mode
is set to
Disable
cannot
coexist.
•
The external volume whose
Cache Mode
is set to
Enable
, and the external volume whose
Cache
Mode
is set to
Disable
cannot coexist.
Notes on using Smart Tiers
•
When pool-VOLs with the available monitoring information are added in a pool, tier relocation
is performed. When pool-VOLs with no available monitoring information are added in a pool,
the page usage rate is averaged out in a tier.
•
If the pool-VOL is the external volume, set
Enable
for
Cache Mode
.
•
If the pool-VOLs are added, the tier relocation being performed stops.
To increase pool capacity:
1.
In the Remote Web Console main window, in the
Storage Systems
tree, select
Pool
.
2.
From the
Pools
table, select the pool for which you want to increase the capacity. You cannot
increase pool capacity for multiple pools.
3.
Click
Expand Pool
.
4.
In the
Expand Pool
window, select the pool-VOL.
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Configuring thin provisioning