What:		/sys/block/dm-<num>/dm/name
Date:		January 2009
KernelVersion:	2.6.29
Contact:	dm-devel@redhat.com
Description:	Device-mapper device name.
		Read-only string containing mapped device name.
Users:		util-linux, device-mapper udev rules

What:		/sys/block/dm-<num>/dm/uuid
Date:		January 2009
KernelVersion:	2.6.29
Contact:	dm-devel@redhat.com
Description:	Device-mapper device UUID.
		Read-only string containing DM-UUID or empty string
		if DM-UUID is not set.
Users:		util-linux, device-mapper udev rules

What:		/sys/block/dm-<num>/dm/suspended
Date:		June 2009
KernelVersion:	2.6.31
Contact:	dm-devel@redhat.com
Description:	Device-mapper device suspend state.
		Contains the value 1 while the device is suspended.
		Otherwise it contains 0. Read-only attribute.
Users:		util-linux, device-mapper udev rules
