[Linux-cluster] Minimalist cluster

[Keith Denby]

What is the minimum arrangement of hardware to run a cluster to provide 
HA web services including MySQL?

Can it be done using just two machines with no NAS - each acting as a 
node with storage mirrored across the two machines and conga able to run 
on both?

Can IPMI fencing be used in such a case or is it necessary to have a 
power-controller that serialises requests to control the power?

What risks are inherent in such a minimalist arrangement?

Thanks

-- 
Keith Denby

keith at eddystone.com
01598 763455
07763 483168