Drive enclosures – scsi only, Hotspares, Audible alarm – Adaptec SATA AND SCSI RAID CONTROLLERS User Manual
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Introduction
Drive Enclosures – SCSI only
Adaptec SCSI controllers support drive enclosures that include
SAF-TE enclosure management hardware per the SAF-TE
specification.
Hotspares
Adaptec RAID controllers support hotspares, drives that are
reserved to replace a failing drive in a redundant array. In the event
of drive failure, hotspares replace failed drives and arrays are
automatically rebuilt.
The Adaptec RAID controllers support two types of hotspares:
■
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
Adaptec RAID controllers are equipped with an audible alarm that
can alert you to situations that affect data safety. This section
discusses the following topics:
■
■
For additional details on how to control the alarm, see
and the Adaptec Storage Manager online Help.
Sounding the Alarm
The alarm sounds under the following circumstances:
■
When the controller is running, the alarm sounds when a drive
fails. For example, if a drive becomes unplugged, the alarm
sounds.
■
When restarting the system, the alarm sounds 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, the alarm sounds. For example,
if a drive is missing from a RAID 0, or if two drives are missing
from a RAID-5, the alarm sounds.