LSI MegaRAID SCSI 320-2 RAID Controller Series 518 - Manual (Page 34)

2-10 Introduction to RAID
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
totally dedicated to rebuilding the failed drive. The MegaRAID SCSI 320-
2 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.
2.3.12 Logical Drive States
Table 2.2 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 2.3 .
Table 2.2 Logical Drive States
State Description
Optimal Drive operating condition is good. All configured drives are
online.
Degraded Drive operating condition is not optimal. A configured drive has
failed or is offline.
Failed Drive has failed.
Offline Drive is not available to MegaRAID SCSI 320-2.
Table 2.3 SCSI Drive States
State Description
Online
(ONLIN) The drive is functioning normally and is a part of a configured
logical drive.
Ready
(READY) The drive is functioning normally but is not part of a
configured logical drive and is not designated as a hot spare.
Hot Spare
(HOTSP) The drive is powered up and ready for use as a spare in case
an online drive fails.
Fail (FAIL) A fault has occurred in the drive, placing it out of service.
Rebuild (REB) The drive is being rebuilt with data from a failed drive.