As a pure matter of opinion, I enjoy "fat provisioning" on my filesystems, since I run a desktop and in theory it really cuts down on physical fragmentation.
Snapshots are something I use whenever I need to make a fundamental reconfiguration to the system as a whole that can't be done live, such as resizing or reconfiguring the root filesystem.
This would preclude the unquestionable usage of thin volumes.
On Mon, Jul 22, 2013 at 3:16 AM, Zdenek Kabelac <zkabelac@redhat.com> wrote:
Dne 22.7.2013 12:12, Raymond Jennings napsal(a):I've been talking about thin snapshots.
I tried to run a fstrim on a mounted snapshot (regular snapshot, not thin
snapshot) and got zip.
Of course - for old non-thin snapshot - TRIM is not supported.
(And it doesn't look like anything simple to implement)
Zdenek
<mailto:zkabelac@redhat.com>> wrote:
Dne 21.7.2013 21:40, Zdenek Kabelac napsal(a):
Dne 21.7.2013 13:01, Raymond Jennings napsal(a):
Do snapshots behave the same way as thin volumes wrt discards?
Yes, snapshots are just like any other thin volumes.
Just a side note - until I think 3.9 kernel there used to be
bug, which had wrong ref-counting of shared blocks.
Zdenek
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