From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Fri, 24 Oct 2014 10:18:49 -0400
From: Mike Snitzer <snitzer@redhat.com>
Message-ID: <20141024141849.GB29345@redhat.com>
References: <544A5D76.2010800@mglug.de>
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In-Reply-To: <544A5D76.2010800@mglug.de>
Subject: Re: [linux-lvm] What todo if metadata grows faster than pool data
Reply-To: LVM general discussion and development <linux-lvm@redhat.com>
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To: Oliver Rath <rath@mglug.de>
Cc: LVM general discussion and development <linux-lvm@redhat.com>

On Fri, Oct 24 2014 at 10:08am -0400,
Oliver Rath <rath@mglug.de> wrote:

> Hi list,
> 
> in my thinpool-volume the used data is now 50% but the used metadata
> size is 82%. What happens, if the metadata a running full, bevor data is
> full? Do I have to modify metadata size explicitly or does lvm this
> automaticly? How can I do this?

You'll want to grow the metadata volume.  Newer versions of the
dm-thinp kernel code and lvm2 userspace code make this possible.

See the "Manually manage free metadata space of a thin pool LV" section
of the lvmthin.7 manpage in a recent lvm2 release.