HSG80 ACS Solution Software V8.6 for IBM AIM Installation and Configuration Guide

Table Of Contents
224 HSG80 ACS Solution Software Version 8.6 for IBM AIX Installation and Configuration Guide
Changing Switches
You can change the RAIDset, mirrorset, device, and unit switches at any time. You cannot
change the initialize switches without destroying data on the storageset or device. These
switches are integral to the formatting and can only be changed by re-initializing the
storageset.
CAUTION: Initializing a storageset is similar to formatting a disk drive; all data is
destroyed during this procedure.
Storageset and Partition Switches
The characteristics of a particular storageset can be set by specifying switches when the
storageset is added to the controllers configuration. Once a storageset has been added, the
switches can be changed by using a
SET command. Switches can be set for partitions and
the following types of storagesets:
RAIDset
Mirrorset
Stripesets have no specific switches associated with their
ADD and SET commands.
RAIDset Switches
Use the following types of switches to control how a RAIDset ensures data availability:
Replacement policy
Reconstruction policy
Remove/replace policy
For details on the use of these switches refer to
SET RAIDSET and SET RAIDset-name commands
in the Compaq StorageWorks HSG80 Array Controller ACS Version 8.6 CLI Reference
Guide.