From: Mike Snitzer <snitzer@redhat.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] what use is virtualsize -- or how is it to be used?
Date: Fri, 8 Jul 2011 20:51:33 -0400 [thread overview]
Message-ID: <20110709005133.GA6588@redhat.com> (raw)
In-Reply-To: <defbc387-1bad-4241-b8b4-b0f8a04f2cd8@email.android.com>
On Fri, Jul 08 2011 at 7:17pm -0400,
adultsitesoftware@gmail.com <support@bettercgi.com> wrote:
> Virtual size lets you create a 200G file system om a 20G LV and then lvextend as needed, without the need to resize the filesystem. Read about sparse files for ideas of other uses.
>
> It'd like a sparse device in that blocks need not actually exist until they are written to.
>
> It currently has a performance and flexibility impact that prevents us from using it, though we would like to.
Please have a look at the DM thinp target that was just posted to
dm-devel.
We don't have lvm2 support for this thinp target yet, we are working on
it, but thinp is a much richer solution that should address your needs.
Mike
next prev parent reply other threads:[~2011-07-09 0:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-08 5:22 [linux-lvm] what use is virtualsize -- or how is it to be used? Linda A. Walsh
2011-07-08 23:17 ` adultsitesoftware@gmail.com
2011-07-09 0:51 ` Mike Snitzer [this message]
2011-07-10 17:30 ` Linda A. Walsh
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