diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-rbd | 29 | ||||
| -rw-r--r-- | Documentation/filesystems/ceph.txt | 4 |
2 files changed, 30 insertions, 3 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd index 2ddd680929d8..f208ac58d613 100644 --- a/Documentation/ABI/testing/sysfs-bus-rbd +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -6,7 +6,7 @@ Description: Being used for adding and removing rbd block devices. -Usage: <mon ip addr> <options> <pool name> <rbd image name> [snap name] +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 @@ -14,9 +14,13 @@ 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. -Removal of a device: +Usage: <dev-id> [force] - $ echo <dev-id> > /sys/bus/rbd/remove + $ 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 @@ -43,10 +47,25 @@ Description: Available only if rbd module is inserted with single_major 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. @@ -92,6 +111,10 @@ 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 diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt index d6030aa33376..f5306ee40ea9 100644 --- a/Documentation/filesystems/ceph.txt +++ b/Documentation/filesystems/ceph.txt @@ -98,6 +98,10 @@ Mount Options size. rsize=X + Specify the maximum read size in bytes. By default there is no + maximum. + + rasize=X Specify the maximum readahead. mount_timeout=X |