mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 12:46:41 +07:00
0276dca6c1
This adds a force close option, so we can force the unmapping of a rbd device that is open. If a path/device is blacklisted, apps like multipathd can map a new device and then unmap the old one. The unmapping cleanup would then be handled by the generic hotunplug code paths in multipahd like is done for iSCSI, FC/FCOE, SAS, etc. Signed-off-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
122 lines
3.1 KiB
Plaintext
122 lines
3.1 KiB
Plaintext
What: /sys/bus/rbd/
|
|
Date: November 2010
|
|
Contact: Yehuda Sadeh <yehuda@newdream.net>,
|
|
Sage Weil <sage@newdream.net>
|
|
Description:
|
|
|
|
Being used for adding and removing rbd block devices.
|
|
|
|
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.
|
|
|
|
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: December 2013
|
|
KernelVersion: 3.14
|
|
Contact: Sage Weil <sage@inktank.com>
|
|
Description: 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,
|
|
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: December 2013
|
|
KernelVersion: 3.14
|
|
Contact: Sage Weil <sage@inktank.com>
|
|
Description: 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,
|
|
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.
|
|
|
|
Entries under /sys/bus/rbd/devices/<dev-id>/
|
|
--------------------------------------------
|
|
|
|
client_addr
|
|
|
|
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'. (August 2016, since 4.9.)
|
|
|
|
client_id
|
|
|
|
The ceph unique client id that was assigned for this specific session.
|
|
|
|
cluster_fsid
|
|
|
|
The ceph cluster UUID. (August 2016, since 4.9.)
|
|
|
|
config_info
|
|
|
|
The string written into /sys/bus/rbd/add{,_single_major}. (August
|
|
2016, since 4.9.)
|
|
|
|
features
|
|
|
|
A hexadecimal encoding of the feature bits for this image.
|
|
|
|
major
|
|
|
|
The block device major number.
|
|
|
|
minor
|
|
|
|
The block device minor number. (December 2013, since 3.14.)
|
|
|
|
name
|
|
|
|
The name of the rbd image.
|
|
|
|
image_id
|
|
|
|
The unique id for the rbd image. (For rbd image format 1
|
|
this is empty.)
|
|
|
|
pool
|
|
|
|
The name of the storage pool where this rbd image resides.
|
|
An rbd image name is unique within its pool.
|
|
|
|
pool_id
|
|
|
|
The unique identifier for the rbd image's pool. This is
|
|
a permanent attribute of the pool. A pool's id will never
|
|
change.
|
|
|
|
size
|
|
|
|
The size (in bytes) of the mapped block device.
|
|
|
|
refresh
|
|
|
|
Writing to this file will reread the image header data and set
|
|
all relevant datastructures accordingly.
|
|
|
|
current_snap
|
|
|
|
The current snapshot for which the device is mapped.
|
|
|
|
snap_id
|
|
|
|
The current snapshot's id. (August 2016, since 4.9.)
|
|
|
|
parent
|
|
|
|
Information identifying the chain of parent images in a layered rbd
|
|
image. Entries are separated by empty lines.
|