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Re: [Xen-users] Xen4 + Remus + iSCSI

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen4 + Remus + iSCSI
From: Łukasz Oleś <lukaszoles@xxxxxxxxx>
Date: Wed, 21 Jul 2010 00:07:22 +0200
Delivery-date: Tue, 20 Jul 2010 15:08:38 -0700
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On Sunday 20 June 2010 14:56:12 Thomas von Stetten wrote:
> Hello,
> 
> 
> 
> we are using debian, xen 3.x and a iscsi-storage with ext4 as filesystem.
> Heartbeat is used for xen-ha.
> 
> Now we like to change to xen 4 and remus.
> 
> The iscsi SAN is available on active-Dom0 and backup-Dom0.
> 
> I don´t have to use the disk buffering, as I understand remus right,
> because the file system on both machines is the same.
> 
> With ext4 we don´t had problems at the xen3-Cluster on live migration. Also
> on tested hardware crashes.
> 
> 
> 
> Is it right to disable the disk replication and the remus will work fine
> for ha?
> 

No, it wont work. See 
http://wiki.xen.org/xenwiki/Remus http://nss.cs.ubc.ca/remus/doc.html and 
http://lists.xensource.com/archives/html/xen-devel/2010-07/msg00402.html

--
Łukasz Oleś

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