Table 4-1.

RAID Controller Physical Disk States (continued)

 

 

 

 

 

Status

Mode

Description

Physical Disk

 

 

 

Status LED

 

 

 

 

Pending

Assigned,

A Self-Monitoring Analysis and

Flashing green

Failure

Unassigned,

Reporting Technology (SMART) error

(500 ms), amber

 

Hot Spare in

has been detected on the physical disk

(500 ms), and off

 

use, or Hot

in the indicated slot.

(1000 ms)

 

Spare Standby

 

 

Offline

Not applicable

The physical disk has either been spun

Flashing green

 

 

down or had a rebuild aborted by user

(3000 ms), amber

 

 

request.

(3000 ms), and

 

 

 

off(3000 ms)

Identify

Assigned,

The physical disk is being identified.

Green flashing

 

Unassigned,

 

(250 ms)

 

Hot Spare in

 

 

 

use, or Hot

 

 

 

Spare Standby

 

 

N/A

N/A

The indicated slot is empty, or the

 

 

 

array cannot detect the physical disk.

 

 

 

 

 

If a disk drive rebuild fails because of a source drive failure or because the drive is too small, the MDSM reports a failure of the physical disk even though the LED state on the drive indicates that the rebuild was aborted (green for 3 seconds, amber for 3 seconds, then off for 3 seconds).

Self-Monitoring Analysis and Reporting Technology

SMART monitors the internal performance of all physical disk components to detect faults indicating the potential for physical disk failure. SMART uses this information to report whether failure is imminent so that a physical disk can be replaced before failure occurs. The storage array monitors all attached drives and notifies you when a predicted failure is reported by a physical disk.

Virtual Disks and Disk Groups

When configuring a storage array, you must:

1Organize the physical disks into disk groups.

2Create virtual disks within these disk groups.

Planning: MD3600i Series Storage Array Terms and Concepts

39

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Dell MD3600I, MD3620I owner manual Self-Monitoring Analysis and Reporting Technology, Virtual Disks and Disk Groups