RE: [Xen-users] Quorum disk problem

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

Oops... this is another mailing list repeat. Just ignore my response :)

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Kedziora Marek
> Sent: Thursday, 31 January 2008 18:55
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Quorum disk problem
> 
> Hi!
> I have a problem setting up cluster of w2k3 servers. My configurations
> looks like this:
> 
> server1: dom0 (centos5): virtual1 (w2k3)
> server2: dom0 (centos5): virtual2 (w2k3)
> 
> I want to make a cluster with two nodes: virtual1 and virtual2.
> I have a quorum disk set up on SAN, both dom0 configures it via HBA
> (qlogic card with HP driver) as scsi /dev/sdb:
> 
> SAN.quorum -> server1 hba (/dev/sdb) -> virtual1
> SAN.quorum -> server2 hba (/dev/sdb) -> virtual2
> 
> Then it is passed as block device to domU with this xen config:
> 
> disk = [ ..<other disks>..., 'phy:/dev/sdb:sdb:w' ]
> 
> Everything would be fine except that changes made to quorum disk
> on active node are not seen after changing active node to the other
> one. It looks like all changes are cached somewhere and active node
> writes to this same disk as it would be two different disks. After
> rebooting both nodes only changes from first active node are written to
> disk.
> 
> Could you please help me in setting up the quorum disk ?
> TIA
> Best regards
> Marek Kedziora
> 
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