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Re: [Xen-users] how xen recognizes fibre channel based storage resources

To: "Piotr Szałamacha" <piotr@xxxxxxxxxxxx>
Subject: Re: [Xen-users] how xen recognizes fibre channel based storage resources
From: "Javier Guerra" <javier@xxxxxxxxxxx>
Date: Fri, 6 Jun 2008 19:39:04 -0500
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
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On Fri, Jun 6, 2008 at 3:17 PM, Piotr Szałamacha <piotr@xxxxxxxxxxxx> wrote:
> If I understand well dom0 sees all as local disks: scsi disk in physicall
> server and connected via HBA fibre channel resource. And if I create dom1
> partially (system part) located on local scsi disk and partially (shared
> part) on FC array - then how other domu's located on other physical machines
> will see this shared ocfs-ed volume?

you can share the same block device to several DomUs, just add 'w!' to
the options to say: "yes, write access to more than one".  if you use
only 'w', Xen would complain at the second DomU that tries to use it,
which is a reasonable safeguard when you don't use cluster-aware
filesystems.

-- 
Javier
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