[CentOS] Cluster with two i386 pcs!

[Mike Fedyk]

John Summerfield wrote:
> Israel.garcia at cimex.com.cu wrote:
>> I want to make a cluster with two simple (INTEL SATA) pcs using CentOS,
>> my question is? Is there something easiest than Linux RedHat Cluster
>> Manager to make a cluster using CentOS with just two pcs?
>>
>> Regards,
>> Israel
> 
> I'm not sure how well it fits with CentOS, but take a look at openmosix. 
> (btw I believe, as far as projects "live" in any geographic location, 
> openmosix lives in Israel).
> 
> If you can hold out for RHEL5/CentOS5 then Xen might be useful. 
> Apparently, and I've not done this, one can boot a Xen guest in one 
> physical box, then migrate it to another while it's running.

You need some sort of shared storage like GFS, iSCSI, or possibly Lustre 
to do the xen VM shift between hosts trick.

Probably the simplest setup would be a heartbeat + drbd + stonith setup 
where each node runs one half of the services and acts as a backup in 
case the other fails.

Mike