[CentOS] Fencing a Dell T110 II

Steve Campbell campbell at cnpapers.com
Tue Jan 8 19:38:21 UTC 2013


I think I know the answer to this question based on all of the research 
I've done, but figured I'd ask anyway.

I needed a couple of servers for an HA cluster, and our "order" guy here 
ordered me a couple of Dell PowerEdge T110 II. I'd planned on using IPMI 
to fence these things with, but later found out that this model is only 
one of two PE servers Dell sells that has a stripped down BMC on it, and 
allows only local access. It's my fault for not looking closer at the 
specs, but I figured a PowerEdge server would have the stuff I needed.

So now I'm looking for a way to fence these without purchasing more 
equipment. I thought maybe IF-MIB, but I can't discover enough about 
that to determine whether that'll work for me.

I find it strange that using Conga (luci) from a third administration 
server I can reboot these two Dell nodes, and wonder why that works, how 
it's done, and why that wouldn't work as a fence method.

Any one dealt with this particular Dell PE and fencing in any form other 
than using something like an APC fence?

Thanks for any suggests. I've pretty much wore Google out, and I'm now 
in that round-robin mode of results where everything leads back to the 
same pages on different servers.

steve campbell



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