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| author | M. Mohan Kumar <mohan@in.ibm.com> | 2013-11-13 22:44:43 +0530 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-11-13 11:39:22 -0800 |
| commit | 81a57679c20ac0ac9b48e313af75036132e3a5ad (patch) | |
| tree | c99c3cf75096a2530b65a3bb5b3c19c2c463b7fa /libglusterfs/src | |
| parent | b222ce817f5f324fe20d4d3614001ed2f177afb8 (diff) | |
bd: Add support to create clone, snapshot and merge of LV images.
Special xattr names "clone" & "snapshot" can be used to create full and
linked clone of the LV images. GFID of destination posix file (to be
mapped) is passed as a value to the xattr. Destination posix file must
exist before running this operation.
These operations form a basis for offloading storage related operations
from QEMU to GlusterFS.
Syntax for full clone: xattr name: "clone" value: "gfid-of-dest-file"
Syntax for linked clone: xattr name: "snapshot" value: "gfid-of-dest-file"
Syntax for merging: xattr name: "merge" value: "path-to-snapshot-file"
Example:
setfattr -n clone -v <gfid-of-dest-file> /media/source
setfattr -n snapshot -v <gfid-of-dest-file> /media/source
setfattr -n merge -v "/media/sn" /media/sn
Change-Id: Id9f984a709d4c2e52a64ae75bb12a8ecb01f8776
BUG: 1028672
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Reviewed-on: http://review.gluster.org/5626
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'libglusterfs/src')
0 files changed, 0 insertions, 0 deletions