IBM XIV STORAGE SYSTEM, User Manual

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Name Type Description Mandatory Default
hard_size Positive integer Hard size of the
Storage Pool
(actual physical
capacity). N N/A
soft_size Positive integer Soft size of the
Storage Pool
(maximal size of
capacity seen by
the hosts, used for
thin provisioning). N N/A
snapshot_
size
Integer Sets a new value
for the limit on
snapshot capacity
usage of the
Storage Pool. N Leave unchanged.
This command resizes a Storage Pool. The command can either increase or
decrease the Storage Pool size.
The new size of the Storage Pool is specified as an integer multiple of 10
9
bytes,
but the actual size of the created Storage Pool is rounded up to the nearest integer
multiple of 16x2
30
bytes.
Capacity accounting is performed in respect to the free space.
You can either specify both hard_size and soft_size or to only specify size (which
specifies that the hard_size and the soft_size are identical).
v
When increasing a Storage Pool size, the command succeeds only if the free
space holds enough free capacity to allow such an increase in size.
v
When decreasing a Storage Pool size, the command succeeds only if the Storage
Pool itself holds enough free capacity to allow such a reduction in size.
v
If the new size equals the current size, the command succeeds without changes
to the Storage Pool.
This command fails if either the current Storage Pool's size (hard or soft) cannot be
decreased or if free space (hard or soft) cannot be decreased.
Resizing a Pool that stores asynchronous-mirrored volumes or Consistency Groups:
v
The Pool's hard and soft size have to be identical.
Example:
pool_resize pool=DBPool size=1300
Output:
Command Executed Successfully.
Access Control:
User Category Permission
Storage administrator Allowed
Storage integration administrator Allowed
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IBM XIV Storage System User Manual