[dm-devel] Announce: unlimited number of shared snapshots
Mikulas Patocka
mpatocka at redhat.com
Thu Nov 27 05:41:36 UTC 2008
Hi
I made first release of my snapshot storage that can hold unlimited number
of snapshots and share data between them:
http://people.redhat.com/mpatocka/patches/kernel/new-snapshots/
How-to-use is at the beginning of dm-multisnapshot.patch
If you see some errors, report them.
This storage uses btree with the key (chunk number, snapshot range). It
uses log-structured storage, so that it is safe w.r.t. crash.
TODO:
- reclaim allocated space, allow deleting snapshots
- writable snapshots
Mikulas
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