The MegaRAID SCSI 320-0 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.

Table 2.2

Logical Drive States

 

 

State

Description

 

 

Optimal

The drive operating condition is good. All configured drives are

 

online.

 

 

Degraded

The drive operating condition is not optimal. One of the

 

configured drives has failed or is offline.

 

 

Failed

The drive has failed.

 

 

Offline

The drive is not available to MegaRAID SCSI 320-0.

 

 

2.3.13 SCSI Drive States

A SCSI disk drive can be in one of the states described in Table 2.3.

Table 2.3

SCSI Drive States

 

 

State

Description

 

 

Online

The drive is functioning normally and is a part of a configured

(ONLIN)

logical drive.

 

 

Ready

The drive is functioning normally but is not part of a configured

(READY)

logical drive and is not designated as a hot spare.

 

 

Hot Spare

The drive is powered up and ready for use as a spare in case an

(HOTSP)

online drive fails.

 

 

Fail

A fault has occurred in the drive, placing it out of service.

(FAIL)

 

 

 

Rebuild

The drive is being rebuilt with data from a failed drive.

(REB)

 

 

 

2-10Introduction to RAID

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