On Wed, 3 Feb 2010, Mike Snitzer wrote:
This patch series adds LVM snapshot support to yum-utils' fs-snapshot
plugin. LVM and DM now support "snapshot-merge" to allow changes stored
in a snapshot LV to be merged back into the snapshot's origin LV.
This LVM/DM support allows for "system rollback" of any filesystem that
is built on LVM logical voluems that can be snapshotted. Adding LVM
snapshot support to the yum-utils fs-snapshot plugin extends the utility
of this plugin beyond btrfs filesystems. The fs-snapshot's support for
LVM snapshots is disabled by default.
I would like to get this support committed upstream at your earliest
convenience. As such I welcome any review/feedback on these changes.
It is my hope that these changes can still make F13 as part of the
"System Rollback" feature. The existing project Feature page could be
extended to include LVM snapshot information:
http://fedoraproject.org/wiki/Features/SystemRollbackWithBtrfs
[please cc me when replying as I'm not subscribed to yum-devel]
My only question about your changes is: how well has this been tested?
Some feature considerations:
1. timing out if a backup is taking too long
2. perhaps extending/improving the information in yum-history to include
which snapshot most immediately preceeded a yum transaction.
thanks,
-sv
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