From: Zdenek Kabelac <zkabelac@redhat.com>
To: Raymond Jennings <shentino@gmail.com>
Cc: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] thin discards
Date: Mon, 22 Jul 2013 12:16:24 +0200 [thread overview]
Message-ID: <51ED0678.1020703@redhat.com> (raw)
In-Reply-To: <CAGDaZ_rkTHaq3dr9BQ50=cOtErYepMb0V96uszjb+gsrp_sqBw@mail.gmail.com>
Dne 22.7.2013 12:12, Raymond Jennings napsal(a):
> I tried to run a fstrim on a mounted snapshot (regular snapshot, not thin
> snapshot) and got zip.
>
I've been talking about thin snapshots.
Of course - for old non-thin snapshot - TRIM is not supported.
(And it doesn't look like anything simple to implement)
Zdenek
>
>
> On Mon, Jul 22, 2013 at 2:47 AM, Zdenek Kabelac <zkabelac@redhat.com
> <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
>
>
next prev parent reply other threads:[~2013-07-22 10:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-15 15:32 [linux-lvm] thin discards Raymond Jennings
2013-07-16 10:16 ` Zdenek Kabelac
2013-07-16 11:33 ` Raymond Jennings
2013-07-21 7:10 ` Raymond Jennings
2013-07-21 10:47 ` Zdenek Kabelac
2013-07-21 11:01 ` Raymond Jennings
2013-07-21 19:40 ` Zdenek Kabelac
2013-07-22 9:47 ` Zdenek Kabelac
2013-07-22 10:12 ` Raymond Jennings
2013-07-22 10:16 ` Zdenek Kabelac [this message]
2013-07-24 3:12 ` Raymond Jennings
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