Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009
allocated to volumes. For example, a storage pool might be composed entirely of
LUNs that have a hardware snapshot capability (for example, EMC Business
Continuity Volumes).
Figure 1-7 shows how to Set the AutoGrow policy to pool to ensure that the entire
storage pool remains snapshot-capable.
Figure 1-7
Effect of setting the value of the AutoGrow policy to pool
Storage pool
Disk Group
Templates
Application volumes
Policies:
AutoGrow = pool
LUNs outside
the storage pool
cannot be used
LUNs with
snapshot
capability
If the AutoGrow policy level were to remain set to the default value of diskgroup,
this would allow the ISP to aggregate LUNs from the disk group.
Setting the storage pool policies away from their default values may not be
desirable if you want to maintain close control over how a storage pool is used.
Figure 1-8 illustrates how setting the AutoGrow policy to diskgroup allows LUNs
from the same disk group that are outside the storage pool to be used, and setting
the SelfSufficient policy to host allows templates that provide the required
capabilities to be imported from outside the storage pool or disk group.
29Understanding ISP
Sample ISP deployments