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Re: [Xen-users] Mount block-device rw on more DomU

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Mount block-device rw on more DomU
From: Michael Mey <michael.mey@xxxxxx>
Date: Tue, 14 Feb 2006 11:52:52 +0100
Cc: Marco Natali <marco@xxxxxxxxxx>
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On Monday 13 February 2006 23:44, Marco Natali wrote:
> Hi all
> I would like to install for testing an Oracle RAC on two DomU and I need
> of some block devices simulating an external storage.
> I would like to mount an LVM volume in Dom0 mounted rw by two DomU, but
> when I try to attach the block device I receive this message:
>
>   # xm block-attach oracle1 phy:/dev/vg0/oracle-db /dev/sdb1 rw
>   Error: Device 2065 (vbd) could not be connected.
>   Device /dev/vg0/oracle-db is mounted in a guest domain,
>   and so cannot be mounted now.
>
> Is it possible to force in some way?
>
> Thanks
>
>       Marco Natali
>
>
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> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
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Hi,

you really wouldn't want to do that. The possibility for destroying the 
filesystem during the first few minutes is nearly 100 %. For this purpose, 
you should consider using a cluster filesystem, like gfs, ocfs2 (easier to 
set up) or sth similar.

Michael
-- 
----------------------------------------------------------------------------------------
Michael Mey                                  
Thinking Objects Software GmbH    |   mailto: michael.mey@xxxxxx 
Lilienthalstrasse 2/1             |   phone: +49 711 88770-147
70825 Stuttgart-Korntal, Germany  |   fax: +49 711 88770-449
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