HP serviceguard t2808-90006 manual # mdadm --remove /dev/md0

			Disaster Scenarios and Their Handling
Table 4-1	Disaster Scenarios and Their Handling (Continued)
Disaster Scenario		What Happens When	Recovery Process
		This Disaster Occurs
A package (P1) is running on a		The package (P1) continues	Once you restore power to S1, or
node (Node 1). The package uses		to run on Node 1 with the	restore the FC links to S1, the
a mirror (md0) that consists of		mirror that consists of only	corresponding mirror half of S1
two storage components - S1		S2.	(/dev/hpdev/mylink-sde) is
(local to Node 1 -			accessible from Node 1. To make
/dev/hpdev/mylink-sde) and			the restored mirrored half part of
S2 (local to Node 2).			the MD array, complete the
Access to S1 is lost from both			following procedure:
nodes, either due to power			1. Run the following command to
failure to S1 or loss of FC links			remove the mirrored half from
to S1.
			the array:
			# mdadm --remove /dev/md0
			/dev/hpdev/mylink-sde
			2. Run the following command to
			add the mirrored half to the
			array:
			# mdadm --add /dev/md0
			/dev/hpdev/mylink-sde
			The re-mirroring process is
			initiated. When it is complete, the
			extended distance cluster detects
			the added mirror half and accepts
			S1 as part of md0.

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