Dell MD3620F Self-Monitoring Analysis and Reporting Technology, Virtual Disks and Disk Groups

Table 4-1. RAID Controller Physical Disk States (continued)

Status	Mode	Description	Physical Disk
			Status LED
Pending	Assigned,	A Self-Monitoring Analysis and	Green flashing
Failure	Unassigned,	Reporting Technology (SMART) error	(500 ms), Amber
	Hot Spare in	is detected on the physical disk in the	(500 ms), and
	use, or Hot	indicated slot.	Off (1000ms)
	Spare standby
Offline	Not applicable	The physical disk has either been spun	Green flashing
		down or had a rebuild aborted by	(3000 ms), Amber
		user request.	(3000 ms), and
			Off (3000ms)
Identify	Assigned,	The physical disk is being identified.	Green flashing
	Unassigned,		(250 ms)
	Hot Spare in
	use, or Hot
	Spare standby

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

1Organize the physical disks into disk groups.

2Create virtual disks within these disk groups.

3Provide host server access.

4Create mappings to associate the virtual disks with the host servers.

NOTE: Host server access must be created before mapping virtual disks.

Planning: MD3600f Series Storage Array Terms and Concepts

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