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Re: [Xen-users] guest OS High Availability with local storage

  • To: xen-users@xxxxxxxxxxxxx
  • From: dan@xxxxxxxxxx
  • Date: Wed, 05 Sep 2012 08:56:53 -0700
  • Delivery-date: Wed, 05 Sep 2012 15:05:45 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

 From my experience gluster write performance (2 mirrored nodes) is very low, approx 40-45Mb/sec. read is pretty high and it was network saturation  - appr 90-95Mb/sec (i have gigi network). For HA for VMs i'd highly recommend DRDB+Pacemaker+Corosync. Solution is much more advanced, and requires much more efforts, but output will cover all time expenses. I have cluster of 2 nodes with DRBD, some VM images (block devices, using Logical Volumes on top of DRDB) are up to 512G. I don't see any performance loss. Also Pacemaker is well integrated with XEN live migration. So i think it's best solution for "cheap man".

> 2012/9/5 Andrew Wells <agwells0714@xxxxxxxxx>:
>> Actually look into gluster for turning your local storage into shared
>> storage. Works with more than one node and replicates data.
> thanks for for this useful info, also to everyone who shared their opinion
> --
> Regards,
> Umarzuki Mochlis
> http://debmal.my
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users

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