Did you look at http://code.google.com/p/ganeti/ ?
- Support for Xen virtualization:
- Support for PVM and HVM instances
- Live migration support
- Virtual console (on PVM) or VNC (on HVM) to control instances
- Support for virtio or emulated devices
.....
- Disk management:
- Plain LVM volumes
- Files (from Ganeti 2.0)
- across-the-network raid1 (using DRBD <http://www.drbd.org/>) for
quick recovery in case of physical system failure
- Instance disk partitioning supported from Ganeti 2.0
- Export/import mechanism for backup purposes or migration between
clusters, or
- Automated instance migration across clusters (since Ganeti 2.2)
Lucas de Souza Santos (ldss)
On Tue, Mar 6, 2012 at 2:11 PM, Andreas Balg <a.b...@xincs.eu> wrote:
>
> Hi there maybe have a look at GlusterFs -
>
> We have a running setup here (8 Nodes, 100 VMs) that share localstorage -
> but we use GlusterFS (running in Dom0 - yes something you should not do
> under no circumstances I know) instead of DRBD - and of course there is no
> iSCSI or other block-level storage in this set-up but NFS or just a BIG
> folder of apparently local Storage using native glusterFS that works well
> by now
>
> - maybe you'll have alook at such an option ...
>
> Gruss
>
> Andreas Balg
>
>
>
>
>
> Am Dienstag, 06. März 2012 11:22 CET, George Shuklin <
> george.shuk...@gmail.com> schrieb:
>
>
> Good day.
>
> We've tried that for internal laboratory. Problem: sometime drbd do
> additional IO and making storage out of sync. We've spend few weeks on
> this set up (primary/primary drbd, and iscsi export with LVMoISCSI SR),
> but it getting unstable after some time, so we gave up.
>
>
>
> On 06.03.2012 13:47, Denis Cardon wrote:
> > Hello everyone,
> >
> > I wanted to know if any of you had some experience with building a
> > redundant xcp/xenserver cluster based on drbd. In this setup I would
> > like to avoid a separate iscsi SAN, and have replicated local storage.
> >
> > There are docs on the internet showing how to set up a dual primary
> > drbd SR on xenserver/xcp. It works fine with live migration and all,
> > but when trying disaster scenario, like severing the drbd replication
> > link, one gets a split brain scenario that cannot be unsolved. It
> > should be doable if xapi had a smart understanding of drbd, but
> > currently it is just a SR like others. So it is a no-go for the time
> > being.
> >
> > I also tried a drbd primary-secondary scenario, with re-export with
> > iet iscsi target, but for the moment I have unresolved performance
> > issues (will try also with scst target).
> >
> > So I wanted to know if any of you had any experience or hints with
> > this kind of setup : a dual active/active XCP servers with local SR
> > replicated with primary-secondary DRBD, re-exported with iscsi or aoe
> > or whatever.
> >
> > Cheers,
> >
> > Denis Cardon
> >
>
>
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