Veritas Storage Foundation Intelligent Storage Provisioning 5.0 AdministratorÆs Guide, HP-UX 11i v3, First Edition, May 2008

32 Understanding ISP
Sample ISP deployments
Arranging storage by attributes
You can use storage attributes to control how ISP assigns storage to application
volumes. For example, you can use confinement rules to restrict some volumes
to a subset of LUNs which share common attributes, such as caching to enhance
I/O performance, or hardware RAID to provide redundancy and/or enhance
performance.
As described in “About storage pool policies” on page 37, not all attributes of
LUNs are capable of being discovered automatically. You can use disk tags,
administered using the
vxdisk command or the VEA graphical user interface, to
manually attach such attributes to storage.
An example of using attached attributes is shown in Figure 1-10 where the
templates can use the value of the Building attribute to provide the
availability capability of mirroring volumes between different locations at a site.
Figure 1-10 Example usage of attached attributes
Alternatively, you could specify appropriate separation rules to instruct ISP to
mirror volumes between buildings.
Another example of using attached attributes would be to tag certain LUNs
within a storage pool as having the best performance. You could then use
Storage pool
Disk Group
Tem p l a t es
Application volumes
LUNs with
attached
attribute
Building = Bld1
LUNs with
attached
attribute
Building = Bld2
Templates are configured
to provide the capability
of mirroring application
volumes between buildings