Technical data

4–63
Compaq HSZ80 Array Controller ACS Version 8.3 Maintenance and Service Guide
Clone Utility
Use the Clone utility to duplicate the data on any unpartitioned single-disk unit,
stripeset, mirrorset, or striped mirrorset. Back up the cloned data while the actual
storageset remains online. When the cloning operation is done, 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 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 backup. See
HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide for
more information about using the Clone utility.
Field Replacement Utility
Use the field replacement utility (FRUTIL) to replace a failed controller (in a dual-
redundant configuration) without shutting down the subsystem.You can also use this
menu-driven utility to replace cache modules and external cache batteries. See
Chapter 2, “Replacement Procedures,” for a more detailed explanation of how
FRUTIL is used during rreplacement.