clustering is SO AWESOME

[Jamon Camisso]

Madison Kelly wrote:
> The last couple of weeks I've been messing around with clustering here 
> at the office. I've been banging my head against the wall trying to get 
> it working (busted CentOS RPMs aside...).
> 
> Anyway, I've got it working now and oh wow! When it works, it is a thing 
> of beauty. If I had portable enough hardware I would love to give a talk 
> on it.
> 
> For example;
> 
> I've got a simple 2-node cluster running LVM on DRBD. This acts as a 
> base for a set of Xen VMs. I use on-board IPMI as my fence devices and 
> CentOS/Red Hat Cluster suite for the magic.
> 
> I've been testing failure and recovery. Just now I decided to bite the 
> bullet and kill both nodes (simulated power event). This was were things 
> kept falling apart for me up until now. This time though, with the bugs 
> squashed, it recovered fine.

Question, are you using a cluster filesystem on top of your volumes? I'm 
trying to decide between ocfs2 and gfs2 for a san backend shared between 
4 machines. Any suggestions?

Jamon
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