[Linux-cluster] Fencing agents on DELL PowerEdge servers

Andrew C. Dingman adingman at cook-inc.com
Fri Feb 10 21:10:50 UTC 2006

I'm not entirely sure I know which cluster suite versions you mean, but
using the cluster suite sold for with RHEL 3 all the fencing devices
were Perl scripts. I managed to write a couple of my own using the
examples, one a modified agent for APC 7901 power strips and one for
DRAM/MC devices in blad chassis. The DRAC/MC one is vastly simpler, and
it seems that one for a regular drac would be even a bit easier. Cluster
Suite in RHEL 4 supports DRACs out of the box in the GUI, though I
haven't tested it.

If you want my dracmc fencing agent as a starting point for your own
DRAC fencing agent, you can find it posted to this list about a year
ago. There's also one that was in CVS at the time using Dell's "racadm"

On Thu, 2006-02-09 at 13:18 -0200, Celso K. Webber wrote:
> Hello all,
> Would someone please tell me if there is a way to use a Dell DRAC card 
> as a fencing device under Red Hat Cluster Suite v3? I could successfully 
> configure the DRACs and Cluster Suite v4 to use the Dell server's DRACs 
> as fencing devices under Red Hat Cluster Suite v4, but I could not find 
> a way to do that under CS v3 since the fencing agents are in binary 
> format, not in shell script format as they are in CS v4.
> Alternatively, does anyone know if it is possible to use Dell's 
> "ipmitool" and "ipmish" commands over the server's BMC IP so that I 
> could build a fencing agent script for Cluster Suite v4?
> Thanks for your advice.
> Celso.
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