HP StorageWorks HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide (AA-RV1HA-TE, March 2005)

Backing Up, Cloning, and Moving Data
179HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide
Creating Clones for Backup
Use the Clone utility to duplicate the data on any unpartitioned single-disk unit,
stripeset, mirrorset, or striped mirrorset in preparation for backup. When the
cloning operation is complete, you can back up the Clones rather than the
storageset or single-disk unit, which can continue to service its I/O load. When
you are cloning a mirrorset, Clone does not need to create a temporary mirrorset.
Instead, it adds a temporary member to the mirrorset and copies the data onto this
new member.
The Clone utility creates a temporary, two-member mirrorset for each member in
a single-disk unit or stripeset. Each temporary mirrorset contains one disk drive
from the unit you are cloning and one disk drive onto which Clone copies the data.
During the copy operation, the unit remains online and active so that the Clones
contain the most up-to-date data.
After the Clone utility copies the data from the members to the Clones, it restores
the unit to its original configuration and creates a Clone unit you can back up. The
Clone utility uses the steps shown in Figure 44 to duplicate each member of a unit.
Figure 44: Clone utility steps for duplicating unit members
Unit
Disk10300
Unit
Disk10300
Clone of Disk10300
Clone Unit
Temporary mirrorset
Unit
Disk10300
New member
Unit
Disk10300
New member
Temporary mirrorset
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