mirror of
https://github.com/torvalds/linux.git
synced 2024-12-22 19:01:37 +00:00
bd15134a73
The existing sysfs interface has been updated to be in the same format as described in Documentation/ABI/README. This will be useful for scripting and tracking changes in the ABI. Attributes have been grouped by functionality and/or the date on which they were added. There are a couple of more changes: - The attributes have been annotated with file permissions RO/RW/WO. - Added description of the bus attribute supported_features Signed-off-by: Aishwarya Pant <aishpant@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
163 lines
4.7 KiB
Plaintext
163 lines
4.7 KiB
Plaintext
What: /sys/bus/rbd/add
|
|
Date: Oct, 2010
|
|
KernelVersion: v2.6.37
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(WO) Add rbd block device.
|
|
|
|
Usage: <mon ip addr> <options> <pool name> <rbd image name> [<snap name>]
|
|
|
|
$ echo "192.168.0.1 name=admin rbd foo" > /sys/bus/rbd/add
|
|
|
|
The snapshot name can be "-" or omitted to map the image
|
|
read/write. A <dev-id> will be assigned for any registered block
|
|
device. If snapshot is used, it will be mapped read-only.
|
|
|
|
|
|
What: /sys/bus/rbd/remove
|
|
Date: Oct, 2010
|
|
KernelVersion: v2.6.37
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(WO) Remove rbd block device.
|
|
|
|
Usage: <dev-id> [force]
|
|
|
|
$ echo 2 > /sys/bus/rbd/remove
|
|
|
|
Optional "force" argument which when passed will wait for
|
|
running requests and then unmap the image. Requests sent to the
|
|
driver after initiating the removal will be failed. (August
|
|
2016, since 4.9.)
|
|
|
|
|
|
What: /sys/bus/rbd/add_single_major
|
|
Date: Dec, 2013
|
|
KernelVersion: v3.14
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(WO) Available only if rbd module is inserted with single_major
|
|
parameter set to true.
|
|
|
|
Usage is the same as for /sys/bus/rbd/add. If present, this
|
|
should be used instead of the latter: any attempts to use
|
|
/sys/bus/rbd/add if /sys/bus/rbd/add_single_major is available
|
|
will fail for backwards compatibility reasons.
|
|
|
|
|
|
What: /sys/bus/rbd/remove_single_major
|
|
Date: Dec, 2013
|
|
KernelVersion: v3.14
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(WO) Available only if rbd module is inserted with single_major
|
|
parameter set to true.
|
|
|
|
Usage is the same as for /sys/bus/rbd/remove. If present, this
|
|
should be used instead of the latter: any attempts to use
|
|
/sys/bus/rbd/remove if /sys/bus/rbd/remove_single_major is
|
|
available will fail for backwards compatibility reasons.
|
|
|
|
|
|
What: /sys/bus/rbd/supported_features
|
|
Date: Mar, 2017
|
|
KernelVersion: v4.11
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(RO) Displays the features supported by the rbd module so that
|
|
userspace can generate meaningful error messages and spell out
|
|
unsupported features that need to be disabled.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/size
|
|
What: /sys/bus/rbd/devices/<dev-id>/major
|
|
What: /sys/bus/rbd/devices/<dev-id>/client_id
|
|
What: /sys/bus/rbd/devices/<dev-id>/pool
|
|
What: /sys/bus/rbd/devices/<dev-id>/name
|
|
What: /sys/bus/rbd/devices/<dev-id>/refresh
|
|
What: /sys/bus/rbd/devices/<dev-id>/current_snap
|
|
Date: Oct, 2010
|
|
KernelVersion: v2.6.37
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
size: (RO) The size (in bytes) of the mapped block
|
|
device.
|
|
|
|
major: (RO) The block device major number.
|
|
|
|
client_id: (RO) The ceph unique client id that was assigned
|
|
for this specific session.
|
|
|
|
pool: (RO) The name of the storage pool where this rbd
|
|
image resides. An rbd image name is unique
|
|
within its pool.
|
|
|
|
name: (RO) The name of the rbd image.
|
|
|
|
refresh: (WO) Writing to this file will reread the image
|
|
header data and set all relevant data structures
|
|
accordingly.
|
|
|
|
current_snap: (RO) The current snapshot for which the device
|
|
is mapped.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/pool_id
|
|
Date: Jul, 2012
|
|
KernelVersion: v3.6
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(RO) The unique identifier for the rbd image's pool. This is a
|
|
permanent attribute of the pool. A pool's id will never change.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/image_id
|
|
What: /sys/bus/rbd/devices/<dev-id>/features
|
|
Date: Oct, 2012
|
|
KernelVersion: v3.7
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
image_id: (RO) The unique id for the rbd image. (For rbd
|
|
image format 1 this is empty.)
|
|
|
|
features: (RO) A hexadecimal encoding of the feature bits
|
|
for this image.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/parent
|
|
Date: Nov, 2012
|
|
KernelVersion: v3.8
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(RO) Information identifying the chain of parent images in a
|
|
layered rbd image. Entries are separated by empty lines.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/minor
|
|
Date: Dec, 2013
|
|
KernelVersion: v3.14
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
(RO) The block device minor number.
|
|
|
|
|
|
What: /sys/bus/rbd/devices/<dev-id>/snap_id
|
|
What: /sys/bus/rbd/devices/<dev-id>/config_info
|
|
What: /sys/bus/rbd/devices/<dev-id>/cluster_fsid
|
|
What: /sys/bus/rbd/devices/<dev-id>/client_addr
|
|
Date: Aug, 2016
|
|
KernelVersion: v4.9
|
|
Contact: Sage Weil <sage@newdream.net>
|
|
Description:
|
|
snap_id: (RO) The current snapshot's id.
|
|
|
|
config_info: (RO) The string written into
|
|
/sys/bus/rbd/add{,_single_major}.
|
|
|
|
cluster_fsid: (RO) The ceph cluster UUID.
|
|
|
|
client_addr: (RO) The ceph unique client
|
|
entity_addr_t (address + nonce). The format is
|
|
<address>:<port>/<nonce>: '1.2.3.4:1234/5678' or
|
|
'[1:2:3:4:5:6:7:8]:1234/5678'.
|