HSG80 ACS Solution Software V8.6 for SGI IRIX Installation and Configuration Guide

2–28 HSG80 ACS Solution Software Version 8.6 for SGI Irix Installation and Configuration Guide
The
SHOW DEVICES FULL command shows which disks are used to backup configuration
information.
Destroy/Nodestroy
Specify whether to destroy or retain the user data and metadata when a disk is initialized
after it has been used in a mirrorset or as a single-disk unit.
NOTE: The DESTROY and NODESTROY switches are only valid for mirrorsets and striped
mirrorsets.
■
DESTROY (default) overwrites the user data and forced-error metadata when a disk
drive is initialized.
■ NODESTROY preserves the user data and forced-error metadata when a disk drive is
initialized. Use NODESTROY to create a single-disk unit from any disk drive that has
been used as a member of a mirrorset. See the
REDUCED command in the Compaq
StorageWorks HSG80 Array Controller ACS Version 8.6 CLI Reference Guide for
information on removing disk drives from a mirrorset.
NODESTROY is ignored for members of a RAIDset.
Geometry
The geometry parameters of a storageset can be specified. The geometry switches are:
■ CAPACITY—the number of logical blocks. The range is from 1 to the maximum
container size.
■ CYLINDERS—the number of cylinders used. The range is from 1 to 16777215.
■ HEADS—the number of disk heads used. The range is from 1 to 255.
■ SECTORS_PER_TRACK—the number of sectors per track used. The range is from 1
to 255.
Unit Switches
Several switches control the characteristics of units. The unit switches are described under
the
SET unit-number command in the Compaq StorageWorks HSG80 Array Controller ACS
Version 8.6 CLI Reference Guide.