Intel SRCU31 user manual RAID Features, 12.Physical Drive Usage, 13.Disk Actions, Usage and Status

RAID Features

Table 5-12. Physical Drive Usage

Usage	Description
	Drive is available to be configured as part of a RAID volume, defined as a global hot
Available	spare, reformatted or set as pass-through for direct control by the host operating
	system.
In Use	Drive is configured as part of a RAID volume.
Spare	Drive is configured as a global hot spare. See Section 5.1.4.1, “Global Hot Spare” on
	page 5-4for more information.
Pass-through	Drive is not controlled by RAID firmware and thus cannot be a part of a RAID volume.
	The drive will be available to the operating system as an individual disk.
Claim on Reboot	Gives control of the device to the Intel Integrated RAID subsystem. A reboot may be
	required depending on previous usage.

Table 5-13lists available disk actions depending on current usage and status of the disk(s). See Section 4.3.6, “Physical Disks” on page 4-21.

Table 5-13. Disk Actions, Usage and Status

Disk Action	Usage	Status	Description if Submitted and Confirmed
Begin Format	Available	OK
Begin Format	In Use	Failed	Formats a drive or allows the drive to be reformatted after
			a format session has failed.
Begin Format	Available (in	Failed
	red)
	Pass-	OK
	through		Gives control of the drive to the Intel Integrated RAID
Claim for RAID
	Claim on	OK	subsystem.
	Reboot
Identify Drive	Available	OK
Identify Drive	In Use	Failed	Identify a drive. Useful for determining the location of a
Identify Drive	In Use	OK	drive within a storage enclosure.
Identify Drive	Spare	OK
Mark as Failed	Available	Formatted OK	Alerts a user not to use this drive. Usually utilized in
Mark as Failed	In Use	OK	testing scenarios to simulate a failed drive.
Mark as Normal	Available	Formatted OK	Marks drive as no longer failed.
Mark as Normal	In Use	Failed
Mark as Spare	Available	OK	Mark drive as a global hot spare.
Mark Offline	Available	OK
			Marks a drive to an unusable state and removes all RAID
Mark Offline	In Use	Failed
			configuration data from drive. Useful for pulling a drive out
Mark Offline	In Use	OK	of a storage enclosure that does not support drives from
			being removed while online.
Mark Offline	Spare	OK
Mark Online	Available	Offline	Marks a drive for use. Drive is ready for power.
Mark Online	In Use	Offline

5-12 Intel® Server RAID Controller U3-1 User’s Manual Rev 1.0