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Re: [Xen-users] ISCSI + DRBD + Xen

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] ISCSI + DRBD + Xen
From: Bart Coninckx <bart.coninckx@xxxxxxxxxx>
Date: Wed, 2 Jun 2010 11:39:28 +0200
Cc: Robert Dunkley <Robert@xxxxxxxxx>
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On Wednesday 02 June 2010 11:19:17 Robert Dunkley wrote:
> Hi Everyone,
> I was just wondering if anyone had tried this setup? What was
> performance like?
> I'm thinking of using Infiniband along with SDP (For DRBD) and
> ISCSI-ISER (STGT for Target) to drop latency and speed things up but I
> would be interested in any comments from users on GBE or 10GBE. Do the
> built-in Xen scripts support live migration with ISCSI?
> Thanks,
> Rob
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just in the midst of implementing this. 
I'm using IET on toop of DRBD. The DRBD sync happens on two bonded gigabit 
links. I have yet to install the supervisors. Bottleneck now is the disks 
system. Netperf gives me 180 MB/sec, bonnie++ 120 MB/sec. This is because I 
use a RAID5 on SAS 10K drives currrently. 

Performance obviously will also be related to the number of guests.



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