HP StorageWorks HSG80 ACS Solution Software V8.8 for Sun Solaris Installation and Configuration Guide (AA-RV1RA-TE, March 2005)

Backing Up, Cloning, and Moving Data
194 HSG80 ACS Solution Software V8.8 for Sun Solaris Installation and Configuration Guide
Run Clone - Works the same as v86. In other words a unique WWID is always
allocated to the clone unit.
Clonew of a Snap - The user wants to clone a snap unit without using any
more WWIDs. The clone created from the snap unit will be created using the
linked WWID associated with the snap unit.
Exception: A new WWID will be allocated if the snapshot was created using the
use_parent_wwid switch. Each WWID only has one linked WWID variation. If
the linked WWID is already in use, then a new unique WWID is allocated.
Snap of a Clone - The user want to snapshot a clone without using any more
WWIDs, and issues “CLI> add snap d3 disk10300 d2 use_parent_wwid”. D3, the
snapshot unit, will be created with the linked WWID associated with d2.
Exception: A new WWID will be allocated if the clone was created using the “run
clonew” command. Each WWID only has one linked WWID variation. If the
linked WWID is already in use, then a new unique WWID is allocated.
Manual Clone Creation - The user has his own set of scripts that create
clones, and wants to update them to use linked WWIDs. At some point in the
script there will be an “add unit” command. The switch “parent_wwid=<unit>”
must be provided.
For example,
CLI> add unit d2 disk10100 parent_wwid=d1
would create a unit d2 from device disk10100 whose WWID would be the linked
WWID associated with unit d1.
Exception: A new WWID will be allocated if the linked WWID associated with
d1 is already in use (for example, a clone or snapshot is already using the linked
WWID)