On 17.09.2015 at 20:35, Chris Murphy wrote:
You can use Btrfs in the guest to get at least notification of SDC.
Yes, but I'd rather not depend on all potential guest OSes having btrfs
or something similar.
Another way is to put a conventional fs image on e.g. GlusterFS with
checksumming enabled (and at least distributed+replicated filtering).
This sounds interesting! I'll have a look at this.
If you do this directly on Btrfs, maybe you can mitigate some of the
fragmentation issues with bcache or dmcache;
Thanks, I did not know about these. bcache seems to be more or less what
"zpool add foo cache /dev/ssd" does. Definitely worth a look.
> and for persistent snapshotting, use qcow2 to do it instead of Btrfs.
You'd use Btrfs
snapshots to create a subvolume for doing backups of the images, and
then get rid of the Btrfs snapshot.
Good idea.
Thanks!
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