Pair operations

For you to be able to manage UR pairs, you should know commands and options that control those pairs.

The following table lists the UR pair operations and provides the corresponding RAID Manager commands.

Operation	Options	In HDvM - SN?	RAID Manager command and options
Create UR Pairs	Copy Type	Yes	paircreate None
	LU Selection	Yes	paircreate None¹
	Base Secondary Volume	Yes	paircreate None²
	Mirror Selection	Yes	paircreate None¹
	CTG ID	Yes	paircreate -f[g] `fence` [CTG ID]
	Initial Copy Type	Yes	paircreate [-nocopy \| -nocsus]
	Initial Copy Priority	Yes	paircreate None
	Error Level	Yes	paircreate None
Split Pairs	Secondary Volume Write	Yes	pairsplit -rw
Split Mirrors	Secondary Volume Write	Yes	None
Split Mirrors	Split Mode	Yes	pairsplit [-P]
Resync Pairs	Copy Priority	Yes	pairresync None
Resync Pairs	Error Level	Yes	pairresync -nomsg
Resync Mirrors	None	Yes	None
Delete Mirrors	Delete Mode	Yes	None
Switch host control³	None	No	pairsplit -R[-S\|B]
Notes: The LU and Mirror options cannot be specified with the paircreate command. Instead, you must specify them in the configuration definition file, in advance, and then run the pair create command. The Base Secondary volume and the Secondary volumes options cannot be specified with the paircreate command. Instead, you must specify them in the configuration definition file, in advance, and then run the pair create command. Switches the control from the primary site host to the secondary site host.