HP XP RAID Manager Software - Manual (Page 73)

LDEV can be deleted from the device group associating a copy group. The pair status does not
change even if the LDEV is deleted from the device group.
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Use Cases
The following shows use cases that can be deleted an LDEV from a device group.
◦ Deleting an LDEV (simplex volume) not associated with a copy group from a device group.
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Deleting an LDEV (paired volume) not associated with a copy group from a device group.
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Deleting an LDEV (simplex volume) associated with a copy group from a device group.
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Deleting an LDEV (paired volume) associated with a copy group from a device group.
Device group deletion
Deleting an LDEV that configuring a device group by specifying a created device group name and
an LDEV ID of the LDEV to be deleted. If all the LDEVs configuring the device group are deleted
LDEV group function 73