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From: Stefan Priebe - Profihost AG <s.priebe@profihost.ag>
To: linux-lvm@redhat.com
Subject: [linux-lvm] metadata problems while testing lvm2 git with dm_thin_pool
Date: Fri, 27 Jul 2012 13:57:45 +0200	[thread overview]
Message-ID: <50128239.4030208@profihost.ag> (raw)

Hello list,

i'm testing dm_thin_pool with lvm2 right now. And i'm always running 
into the situation that the metadata get's full.

Kernel: 3.5-rc7
lvm/dmeventd: up2date git version 186a2772

I created my thin disk like this:
lvcreate -L 10G -T thinvol/pool1 -V 100G --name disk1

After some autoresizing lvs looks like this:
# lvs
   LV    VG      Attr     LSize   Pool  Origin Data%  Move Log Copy% 
Convert
   disk1 thinvol Vwi-a-tz 100,00g pool1         22,95 

   pool1 thinvol twi-a-tz  33,77g               67,97

# dmsetup table
thinvol-pool1: 0 70811648 linear 253:4 0
thinvol-disk1: 0 209715200 thin 253:4 1
thinvol-pool1-tpool: 0 70811648 thin-pool 253:2 253:3 128 0 0
thinvol-pool1_tdata: 0 20971520 linear 8:17 2048
thinvol-pool1_tdata: 20971520 49840128 linear 8:17 20998144
MYVOL-thin_pool2_tdata: 0 20971520 linear 8:129 2048
MYVOL-thin_pool2_tdata: 20971520 31227904 linear 8:129 20998144
thinvol-pool1_tmeta: 0 24576 linear 8:17 20973568
MYVOL-thin_pool2_tmeta: 0 24576 linear 8:129 20973568

Last log messages:
lvm[2786]: Monitoring thin thinvol-pool1-tpool.
lvm[2786]: Logical volume pool1 successfully resized
lvm[2786]: Thin thinvol-pool1-tpool is now 100% full.
lvm[2786]: Extending logical volume pool1 to 33,77 GiB
lvm[2786]: Monitoring thin thinvol-pool1-tpool.
lvm[2786]: Logical volume pool1 successfully resized
lvm[2786]: Thin thinvol-pool1-tpool is now 84% full.
lvm[2786]: dm_task_run failed, errno = 22, Invalid argument
lvm[2786]: No longer monitoring thin thinvol-pool1-tpool.
lvm[2786]: No longer monitoring thin thinvol-pool1-tpool.
lvm[2786]: Thin metadata thinvol-pool1-tpool is now 99% full.
lvm[2786]: Resize for thinvol/pool1 is not yet supported.

Greets
Stefan

             reply	other threads:[~2012-07-27 11:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-27 11:57 Stefan Priebe - Profihost AG [this message]
2012-07-30  9:45 ` [linux-lvm] metadata problems while testing lvm2 git with dm_thin_pool Zdenek Kabelac
  -- strict thread matches above, loose matches on Subject: below --
2012-07-27 12:29 Stefan Priebe - Profihost AG
2012-07-27 13:09 ` Sebastian Riemer
2012-07-27 13:31   ` Stefan Priebe - Profihost AG
2012-07-27 13:49     ` Sebastian Riemer
2012-07-27 14:24     ` Zdenek Kabelac
2012-07-27 12:53 Stefan Priebe - Profihost AG

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