LSI Series 520 사용자 설명서
2-10
Introduction to RAID
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
The MegaRAID SCSI 320-1 rebuild rate can be configured between 0%
and 100%. At 0%, the rebuild is only done if the system is not doing
anything else. At 100%, the rebuild has a higher priority than any other
system activity.
and 100%. At 0%, the rebuild is only done if the system is not doing
anything else. At 100%, the rebuild has a higher priority than any other
system activity.
2.3.12 Logical Drive States
describes the logical drive states.
2.3.13 SCSI Drive States
A SCSI disk drive can be in one of the states described in
.
Table 2.2
Logical Drive States
State
Description
Optimal
The drive operating condition is good. All configured drives are
online.
online.
Degraded
The drive operating condition is not optimal. One of the
configured drives has failed or is offline.
configured drives has failed or is offline.
Failed
The drive has failed.
Offline
The drive is not available to MegaRAID SCSI 320-1.
Table 2.3
SCSI Drive States
State
Description
Online
(ONLIN)
(ONLIN)
The drive is functioning normally and is a part of a configured
logical drive.
logical drive.
Ready
(READY)
(READY)
The drive is functioning normally but is not part of a configured
logical drive and is not designated as a hot spare.
logical drive and is not designated as a hot spare.
Hot Spare
(HOTSP)
(HOTSP)
The drive is powered up and ready for use as a spare in case an
online drive fails.
online drive fails.
Fail
(FAIL)
(FAIL)
A fault has occurred in the drive, placing it out of service.
Rebuild
(REB)
(REB)
The drive is being rebuilt with data from a failed drive.