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

[Balagopal Pillai]

As long as you are not trying to serve the same shared file system 
through the same service, like samba
for example through multiple vm's for load balancing and/or redundancy, 
this shouldn't apply.

Balagopal

Geoffrey wrote:
> Balagopal Pillai wrote:
>> 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/
>
> Let me try this again, as I fat fingered the send...
>
> We are not using gfs, does this still apply?
>
>>
>> Balagopal
>>
>> 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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>>
>
>