HSG80 ACS Solution Software V8.6 for Windows NT and Windows 2000 Installation and Configuration Guide

2–24 HSG80 ACS Solution Software Version 8.6 for Windows NT and Windows 2000 Installation and
Configuration Guide
If you use CLI commands to configure the storageset or device manually, the
configuration procedure found in Chapter 5 of this guide indicates when and how to
enable each switch. The Compaq StorageWorks HSG80 Array Controller ACS Version 8.6
CLI Reference Guide contains the details of the CLI commands and their switches.
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.