1 What: /sys/block/rnbd<N>/rnbd/unmap_device
5 Description: To unmap a volume, "normal" or "force" has to be written to:
6 /sys/block/rnbd<N>/rnbd/unmap_device
8 When "normal" is used, the operation will fail with EBUSY if any process
9 is using the device. When "force" is used, the device is also unmapped
10 when device is in use. All I/Os that are in progress will fail.
14 # echo "normal" > /sys/block/rnbd0/rnbd/unmap_device
16 What: /sys/block/rnbd<N>/rnbd/state
20 Description: The file contains the current state of the block device. The state file
21 returns "open" when the device is successfully mapped from the server
22 and accepting I/O requests. When the connection to the server gets
23 disconnected in case of an error (e.g. link failure), the state file
24 returns "closed" and all I/O requests submitted to it will fail with -EIO.
26 What: /sys/block/rnbd<N>/rnbd/session
30 Description: RNBD uses RTRS session to transport the data between client and
31 server. The entry "session" contains the name of the session, that
32 was used to establish the RTRS session. It's the same name that
33 was passed as server parameter to the map_device entry.
35 What: /sys/block/rnbd<N>/rnbd/mapping_path
39 Description: Contains the path that was passed as "device_path" to the map_device
42 What: /sys/block/rnbd<N>/rnbd/access_mode
46 Description: Contains the device access mode: ro, rw or migration.
48 What: /sys/block/rnbd<N>/rnbd/resize
52 Description: Write the number of sectors to change the size of the disk.
54 What: /sys/block/rnbd<N>/rnbd/remap_device
58 Description: Remap the disconnected device if the session is not destroyed yet.
60 What: /sys/block/rnbd<N>/rnbd/nr_poll_queues
64 Description: Contains the number of poll-mode queues