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Fedora and LVMFedora and LVMPosted Nov 1, 2012 12:10 UTC (Thu) by Cato (subscriber, #7643)In reply to: Fedora and LVM by paulj Parent article: Fedora and LVM
LVM snapshots are as buggy as a very buggy thing ... search "lvm bugs snapshots" for more and see the comment from the schroot developer above. They are also very slow because they multiply number of I/Os required for a changed block.
Seriously, do a lot of testing before you rely on LVM snapshots. Or just use btrfs.
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Fedora and LVM Posted Nov 1, 2012 23:02 UTC (Thu) by agk (guest, #23332) [Link]
> LVM snapshots are as buggy as a very buggy thing
They are pretty robust nowadays: the last kernel race I can recall that could lead to incorrect data was found a few years ago now.
But they are not designed to be efficient if they grow large or if you have many of them; and make sure they never run out of space (use the snapshot_autoextend* lvm.conf settings / --monitor y / dmeventd).
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