From: Joe Thornber <joe@fib011235813.fsnet.co.uk>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] LV Fragmentation determination
Date: Wed Nov 6 07:38:02 2002 [thread overview]
Message-ID: <20021106133803.GA22411@reti> (raw)
In-Reply-To: <95154593687.20021106141700@tnonline.net>
On Wed, Nov 06, 2002 at 02:17:00PM +0100, Anders Widman wrote:
> >> First off, can LV's become fragmented across a PV/VG? If yes then...
>
> > Yes, they can.
>
> >>
> >> I'm looking for an easy way to determine how fragmented an LV might been
> >> inside the VG. Is there any command I can run that'll give me nice
> >> estimate on this?
>
> > You can analyze the "lvdisplay -v" output on your LVs in question.
> > That shows you the mapping information and therefore, if your LVs are
> > fragemented.
>
> Will LVM include a defragment procedure?
LVM2 will at some point, in that arbitrary remappings will be
supported. However I'm not convinced that this is a big problem, the
extents are 4M after all.
- Joe
next prev parent reply other threads:[~2002-11-06 7:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-06 2:24 [linux-lvm] LV Fragmentation determination Donald Thompson
2002-11-06 3:20 ` Jon Bendtsen
2002-11-06 7:00 ` Heinz J . Mauelshagen
2002-11-06 7:17 ` Anders Widman
2002-11-06 7:38 ` Joe Thornber [this message]
2002-11-07 11:05 ` Heinz J . Mauelshagen
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