[one-users] VMWare DATASTORE with iSCSI

Tino Vazquez tinova at opennebula.org
Thu May 12 03:12:22 PDT 2011


Hi,

On Wed, May 11, 2011 at 3:23 PM, Gian Uberto Lauri <saint at eng.it> wrote:
>>>>>> "TV" == Tino Vazquez <tinova at opennebula.org> writes:
>
> TV> iSCSI only allows mounting one part of the disk per
> TV> host.
>
> Sorry  ? Are  you meaning  that only  one host  may mount  a partition
> throught iSCSI  ? I would  comment that is  a limitation of  a certain
> iSCSI  san, since  EMC2 let  me mount  the same  partition on  several
> hosts, warning me that I have to use a shared F.S.
>

Oh, I see. We don't have experience with iSCSI, but if using a shared
FS like GFS2 allows sharing a disk between different nodes, then this
is cearly useful for an OpenNebula cloud.

> TV> We can provide support to the development to such a driver if
> TV> anyone is up for the challenge, and will be more than happy to
> TV> evaluate it and include it as a component in the ecosystem.
>
> I did some tests using GFS2, with all the nodes in a single cluster. I
> used the NFS driver without any problem.

Nice!! If I may ask, with which hypervisor?

Regards,

-Tino

>
> I  have to  disable this  installation in  the near  future and  could
> discard this  setup since I lack  a true fence device  and the cluster
> may get unstable...
>
> --
> ing. Gian Uberto Lauri
> Ricercatore / Reasearcher
> Laboratorio Ricerca e Sviluppo / Research & Development Lab.
> Area Calcolo Distribuito / Distributed Computation Area
>
> GianUberto.Lauri at eng.it
>
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>
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