Self-monitoring analysis and reporting technology, Virtual disks and disk groups, Self-monitoring analysis and – Dell POWERVAULT MD3600F User Manual

Page 43: Reporting technology

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Planning: MD3600f Series Storage Array Terms and Concepts

43

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 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

1 Organize the physical disks into disk groups.
2 Create virtual disks within these disk groups.
3 Provide host server access.
4 Create mappings to associate the virtual disks with the host servers.

NOTE:

Host server access must be created before mapping virtual disks.

Pending

Failure

Assigned,

Unassigned,

Hot Spare in

use, or Hot

Spare standby

A Self-Monitoring Analysis and

Reporting Technology (SMART) error

is detected on the physical disk in the

indicated slot.

Green flashing

(500 ms), Amber

(500 ms), and

Off (1000ms)

Offline

Not applicable The physical disk has either been spun

down or had a rebuild aborted by

user request.

Green flashing

(3000 ms), Amber

(3000 ms), and

Off (3000ms)

Identify

Assigned,

Unassigned,

Hot Spare in

use, or Hot

Spare standby

The physical disk is being identified. Green flashing

(250 ms)

Table 4-1. RAID Controller Physical Disk States

(continued)

Status

Mode

Description

Physical Disk
Status LED

book.book Page 43 Tuesday, June 18, 2013 3:03 PM

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