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

autogrow 2
selfsufficient 1
};
Using disk group split and join with storage pools
Storage pools form the smallest unit that can participate in disk group split and
join operations.
See the section “Reorganizing the Contents of Disk Groups” in the “Creating and
Administering Disk Groups” section of the Veritas Volume Manager Administrator’s
Guide for details.
Only clone storage pools can be moved between disk groups; data pools must
remain in the disk group in which they were created.
The following command is used to split one or more clone pools from a source
disk group to a newly-created target disk group:
# vxdg split sourcedg targetdg clonepool ...
All volumes (including instant snapshots) within the specified clone pools are
moved to clone pools within the target disk group.
Any disk group that contains a clone pool must also contain a data pool. If a clone
pool is split from a disk group, an empty data pool is also created in the
newly-created target disk group.
The following command is used to join two disk groups by merging the contents
of the source disk group with the target disk group and then removing the source
disk group:
# vxdg join sourcedg targetdg
All volumes (including full-sized instant snapshots) within the clone pool in the
source disk group are moved to a clone pool of the same name within the target
disk group.
When two disk groups containing storage pools are joined, only one of the data
pools may contain any disks, and the set of templates that are associated with
one data pool must be a subset (including the null set) of the templates that are
associated with the other data pool. The join operation fails if both data pools
contain disks, if the sets of templates are overlapping or disjoint. At the end of
the join operation, the data pool that contains the most templates is retained and
the other data pool is deleted.
You can use the following command to move a clone pool between disk groups:
53Storage pools
Using disk group split and join with storage pools