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

[Piotr Szałamacha <piotr@xxxxxxxxxxxx>]

Hello

> 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.
Thanks for your answer but if I understand well you assume in your 
answer that domu's sharing block device are located on the same physical 
server while they are not.
I would like to create on four physical servers virtual machines that 
must to have simultaneous access to the same FC volume (blck device) - 
therefore no communication between domus0 will be established to 
synchronize writes as you suggests: "yes, write access to more than one".
Is it possible to do something I'd like to do?

Thanks for your help.

Piotr

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Piotr Szałamacha                 Horyzont Technologie Internetowe
E-mail: piotr@xxxxxxxxxxxx           Web: http://www.horyzont.net
tel. +48 61 858 22 55, +48 61 622 95 00, fax. +48 61 858 22 56
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