Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

About data pools
A data storage pool is the first storage pool that is created within a disk group.
All other storage pools that are subsequently created within a disk group are clone
pools.
Only one data pool can be created within a disk group. It should not usually be
necessary to move a data pool to another disk group. However, if this is required,
only an entire data pool can be moved. An individual application volume within
a data pool cannot be moved. If you want to move a data pool into a different disk
group, you must ensure that the data pool contains only those objects that you
require.
About clone pools
A clone storage pool contains one or more full-sized instant volume snapshot
replicas of volumes within a data pool. (A volume snapshot is an image of a
volume’s contents at the moment in time that the snapshot was taken. See the
Veritas Volume Manager Administrator’s Guide for more information about volume
snapshots.)
Full-sized, linked break-off and space-optimized instant snapshots are supported
for use with ISP. Third-mirror break-off volume snapshots are not supported.
In the release of VxVM 5.0, the introduction of linked break-off snapshot volumes
means that it is unnecessary to set up a clone pool. A linked break-off snapshot
volume can have different layout and characteristics from its parent volume, it
can be set up in a data pool in a different disk group, and it retains its identity if
it is relinked to its parent volume and subsequently broken off again.
A clone pool can be moved into another disk group, but an individual snapshot
within it cannot. If you want to move a clone pool into a different disk group, you
must ensure that the clone pool contains only those snapshots that you require.
As an alternative, consider using linked break-off snapshots, as these can be
created in a different disk group and storage pool from their parent volume.
About storage pool sets
A storage pool set is a bundled definition of the capabilities of a data pool and its
clone pools. For convenience, you can use a storage pool set definition to define
both pools in a single operation.
See “Storage pool set” on page 206.
Understanding ISP
About ISP concepts
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