Avago Technologies AcceleRAID 170LP - Manual (Page 85)

Glossary
Manual No. DB11-000024-00 G-27
During the automatic rebuild process, system activity continues as normal.
System performance may degrade slightly during the rebuild process.
To use the standby rebuild feature, you should always maintain a standby
SCSI disk in your system. When a disk fails, the standby disk will
automatically replace the failed drive and the data will be rebuilt. The system
administrator can disconnect and remove the bad disk and replace it with a
new disk. The administrator can then make this new disk a standby.
The standby replacement table has a limit of 8 automatic replacements in any
session (from power-on/reset to the next power-off/reset). When the limit of
8 is reached and a disk failure occurs, the standby replacement will occur but
will not be recorded in the replacement table.
To clear the “standby replacement” table, reboot the system from a DOS
bootable floppy, run the configuration utility and select the option ‘view/
update configuration’ from the main menu. A red box labeled ‘Drive Remap
List’ will be displayed. Selecting the box will allow you to continue. You
should save the configuration without making any changes, and exit the
configuration utility. This will clear the replacement table. You may now
proceed to boot your system and continue normal operations.
In normal use, the replacement table limit of 8 should not cause any
problems. Assuming that a disk fails about once a year (drives we support
generally come with a 5-year warranty), the system would run continuously
for a minimum of 8 years before the table would need to be cleared.
Storage Area Network (SAN)
A high-speed, open-standard scalable network of storage devices and servers
providing accelerated data access.
Storage Device
A collective term for disks, tape transports, and other mechanisms capable of
non-volatile data storage.
Sub-System Storage
A collection of disks providing data storage space to a system user.