1-8
Introduction
Hotspares
The ICP9014RO or ICP9024RO RAID controllers support
hotspares—drives that are reserved to replace a failing drive in a
redundant array. If a drive fails, the hotspare will replace it and the
array is automatically rebuilt. Two types of hotspares can be used:
■
Global
—Protects every array that the drive has enough
available capacity to protect.
■
Dedicated
—Protects only the array that it has been assigned to
protect.
Audible Alarm
The ICP9014RO or ICP9024RO RAID controllers are equipped with
an audible alarm that alerts you to situations that affect safety of
your data.
Sounding the Alarm
The alarm sounds under the following circumstances:
■
When the controller is running, and a drive fails. For example, if
a drive becomes unplugged, the alarm sounds.
■
When restarting the system, if an array is degraded. For
example, if a drive is missing from a three-drive RAID 5, the
alarms sounds.
■
If an array can’t be configured. For example, if a drive is missing
from a RAID 0, or if two drives are missing from a RAID-5, the
alarm sounds.
Silencing the Alarm
The alarm continues to sound until one of the following actions is
taken:
■
The array with the failed member is deleted.
■
If the array is redundant, a rebuild begins.
The alarm feature can be disabled using SCSI
Select
or ICP Storage
Manager. For details on disabling it throug SCSI
Select
, see
. Also refer to the ICP Storage Manager online Help.
