[Linux-cluster] Shared storage across clustered VMs?

[Rudi Ahlers]

On 2010/03/05 11:59 AM, Brett Cave wrote:
>
>
> On Thu, Mar 4, 2010 at 4:23 AM, Jeff Karpinski <jeff at 3d0g.net 
> <mailto:jeff at 3d0g.net>> wrote:
>
>     Our assigned Red Hat engineer was on-site today and pointed out
>     the blindingly obvious solution. Can't believe I didn't think of
>     it: Run NFS as a clustered service and have the VMs mount that.
>     That way ANY system - even outside of the cluster - can also
>     access the data.
>
>
> This is what we are doing, works great. We considered presenting the 
> raw devices from our SAN (fc connectivity instead of iSCSI) to the 
> VM's, but opted against it due to dynamics of changing # of VM's and 
> GFS requirements for journals / # of nodes, as well as multicast 
> issues (each dom0 uses a different routed network for VM's). Each VM 
> mounts NFS from its host.
>
>


What kind of security do you apply, both to the NFS cluster, and the 
data that get accessed on it?

-- 
Kind Regards
Rudi Ahlers, SoftDux MD

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