[linux-lvm] snapshot pools, lvm roadmap
Stuart D. Gathman
stuart at bmsi.com
Wed Jan 5 18:45:49 UTC 2011
On Tue, 4 Jan 2011, Brian Neu wrote:
> For many years, I've greatly desired a snapshotting solution which goes
> above and beyond the current lvm features. I'd love to see the ability to
> instantiate a storage pool for creating snapshots, with either a
> first-in-first-out or even some other method for bumping snapshots when the
> pool fills up. The inefficiency of the former style of lvm snapshots in
> both space and speed and the cumbersome nature of managing them has kept me
> looking for alternatives. Btrfs isn't quite there yet and may not be
> through 2011 or beyond. zfs-fuse can't seem to act as a volume manager and
> I'm having problems with crashes. Frustrated, I'm turning back to lvm.
> So now I'm looking at the lvm wiki and I'm seeing "shared exception
> store". Can someone fill me in on the current status of this effort as
> the wiki was last updated in May-2009 ?
These guys have snapshot pools working as an addon product. It mostly
works using straight device mapper - but they have a kernel patch that is
needed for some deadlock issues.
Stuart D. Gathman <stuart at bmsi.com>
Business Management Systems Inc. Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.
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