add backup driver in nas storage like gluster or local disk etc..

Registered by inhye.park on 2014-02-13

add backup driver plugin in nas storage like gluster or local disk
- cinder/backup/drivers/nas.py

<This is backup step>.
1. Mount volume to backup_path
2. Check File system Type
3. Save file list
4. Tar Archive

<This is restore step.>
1. Format volume to restore
2. Mount volume to backup_path
3. Tar extract

If using this logic, Incremental backup is also possible.

Blueprint information

Status:
Complete
Approver:
John Griffith
Priority:
Undefined
Drafter:
inhye.park
Direction:
Needs approval
Assignee:
inhye.park
Definition:
Obsolete
Series goal:
Accepted for future
Implementation:
Needs Code Review
Milestone target:
milestone icon next
Started by
inhye.park on 2014-02-14
Completed by
Sean McGinnis on 2015-10-18

Related branches

Sprints

Whiteboard

(smcginnis): Marking obsolete as this has been sitting out there for a long time. If this is still needed, please submit a new bp.

Good thing for J release

Gerrit topic: https://review.openstack.org/#q,topic:bp/add-backup-driver-nas-storage,n,z

Addressed by: https://review.openstack.org/82996
    Add Nas backup driver in nas storage like gluster or local disk.

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I'll take a look at the review, but to echo the comments I made ont he summit session whiteboard (not sure of the best place to make them, so I'll make them everywhere:

Backup does not and should not look inside the volume. Doing so means:
a) You can only backup a limited range of FS types
b) You risk big security holes with crafted malformed filesystems
c) The block device you restore will be different to the one you backed up since creation order etc affects the on-disk layout

Just copy the raw blocks, and compress/dedupe as makes sense. Filesystem level stuff is a manilla thing, not a cinder thing.

--
Duncan Thomas

------------
I refactored the driver to use the qemu-img convert tool to dump out the image. This should address your concerns Duncan. Please re-review to ensure things are fixed.

Thanks,
Kevin

kfox1111 - this was completed as part of the posix driver work that got merged.

(?)

Work Items

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