[Linux-cluster] virtualization on top of Red Hat cluster

Balagopal Pillai pillai at mathstat.dal.ca
Mon Jan 26 11:56:33 UTC 2009

It is a good idea to also check out whether there are any issues with 
running these services in a cluster in an active-active configuration.
For example with samba, if you are going to serve the same gfs volume as 
an smb volume using multiple vm's, then you would need
to use the cluster implementation - http://ctdb.samba.org/


Geoffrey wrote:
> We would like to find out if there are other folks attempting to do 
> what we are trying to do.  We are having all kinds of problems.
> We are trying to set up an 8 node cluster and run a number of virtual 
> machines on top of this cluster.  The boxes are running Red Hat 5 and 
> we are using Xen.
> Before going into the actual issues we are running into, I thought we 
> should first find out if there are others who are doing this, or 
> attempting to do this.
> This includes a separate virtual server for the following services: 
> squid, ldap, mail server, dns, samba, email and a handful of 
> Xservers/application servers.
> The specific hardware includes:
> 8 Dell 19150 nodes w/ rh5.2 xen
> Each node has 32GB of ram and 8 cores (xeon 2.66)
> EMC San CX-310
> 2 Brocade 5000 fibre switches
> Any feedback from anyone attempting or currently running a similar 
> solution (virtualization on top of cluster) would be greatly appreciated.

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