3 Contact: Yehuda Sadeh <yehuda@newdream.net>,
4 Sage Weil <sage@newdream.net>
7 Being used for adding and removing rbd block devices.
9 Usage: <mon ip addr> <options> <pool name> <rbd image name> [snap name]
11 $ echo "192.168.0.1 name=admin rbd foo" > /sys/bus/rbd/add
13 The snapshot name can be "-" or omitted to map the image read/write. A <dev-id>
14 will be assigned for any registered block device. If snapshot is used, it will
19 $ echo <dev-id> > /sys/bus/rbd/remove
21 Entries under /sys/bus/rbd/devices/<dev-id>/
22 --------------------------------------------
26 The ceph unique client id that was assigned for this specific session.
30 A hexadecimal encoding of the feature bits for this image.
34 The block device major number.
38 The name of the rbd image.
42 The unique id for the rbd image. (For rbd image format 1
47 The name of the storage pool where this rbd image resides.
48 An rbd image name is unique within its pool.
52 The unique identifier for the rbd image's pool. This is
53 a permanent attribute of the pool. A pool's id will never
58 The size (in bytes) of the mapped block device.
62 Writing to this file will reread the image header data and set
63 all relevant datastructures accordingly.
67 The current snapshot for which the device is mapped.
71 A directory per each snapshot
74 Entries under /sys/bus/rbd/devices/<dev-id>/snap_<snap-name>
75 -------------------------------------------------------------
79 The rados internal snapshot id assigned for this snapshot
83 The size of the image when this snapshot was taken.
87 A hexadecimal encoding of the feature bits for this snapshot.