Technical data

2–28 HSG80 ACS Solution Software Version 8.6 for Compaq Tru64 UNIX Installation and Configuration Guide
Save Configuration
The SAVE CONFIGURATION switch is for a single-controller configuration only. This
switch reserves an area on each of the disks that constitutes the container being initialized.
The controller can write subsystem configuration data on this area. If the controller is
replaced, the new controller can read the subsystem configuration from the reserved areas
of disks.
If you specify SAVE_CONFIGURATION for a multi-device storageset, such as a stripeset,
the complete subsystem configuration is periodically written on each disk in the
storageset.
CAUTION: If user data already exists on a storageset, do NOT reinitialize it with the
save configuration option, as this will change the site and position of the user data on
the storageset. Compaq recommends backing up user data prior to reinitializing any
storageset.
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: