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List:       linux-lvm
Subject:    Re: [linux-lvm] New LVM2 release 2.02.89: Thinly-provisioned	logical volumes
From:       Alasdair G Kergon <agk () redhat ! com>
Date:       2012-01-31 13:23:18
Message-ID: 20120131132318.GH16447 () agk-dp ! fab ! redhat ! com
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On Tue, Jan 31, 2012 at 05:52:21PM +0800, Busby.Cheung wrote:
> I tryed to use this LVM2 to create thin pool and thin lv, but it said PE was \
> required. The VG I used is free, can anyone help me? Should any more args be \
> needed? Is there any more detailed HowTo file than man file?
  

For now, you need either 2 PVs in the VG, or use --alloc anywhere with 1 PV, or
split the allocation manually like:

> [root@host2 ~]# lvcreate  -L100M -T vg_pool/pool -V 1T --name thin_lv /dev/sdl:0 \
> /dev/sdl:1-

I have a patch that fixes this problem, but I'm still testing it.

Alasdair


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