[Linux-cluster] two fencing problems

Bryan Cardillo dillo at seas.upenn.edu
Tue Dec 6 03:42:51 UTC 2005

On Mon, Dec 05, 2005 at 07:40:16PM -0500, Greg Forte wrote:
> two (probably related) questions concerning fencing and APC AP7900 units:
> 1) fence_apc doesn't appear to be compatible with these units - when I run:
> sudo /sbin/fence_apc -a <ipaddy> -l <usr> -p <pwd> -n1 -T -v
> it comes back with:
> failed: unrecognised menu response
> The output file shows that it's getting as far as the "Outlet 
> Control/Configuration" menu, but never selects the specified port.
> This is on RHEL ES4 update 2 with fence-1.32.6-0 installed.
> Does anyone have this working with AP7900s, and if so did you have to 
> hack the fence_apc script or is there just something I'm missing?

        I'm in the process of testing the attached patch, basically
        just had to remove a portion of the match for the `Control
        Outlet' option.

>  2) in the cluster configuration tool (GUI), there's no place to 
> specify the port to cycle for an "APC Power Device".  I tried adding 
> "port=#" to the <fencedevice ...> tags in the cluster.conf file, but the 
> cluster configuration tool didn't like that.  And of course, I was 
> unable to test if this actually works anyway because of problem #1 :-(
> Anyway, assuming I get fence_apc to work, how do I specify ports in the 
> cluster configuration tool?  or is this not supported?  In which case 
> can I add the port option in the cluster.conf like I'm trying to do and 
> have it work?  I have system-config-cluster-1.0.16-1.0 installed.

        here is the clusternode elem I'm using, with the port
        specified, and seems to work so far.  as far as I know, this
        must be specified in the cluster.conf manually.

<clusternode name="node1" votes="1">
        <method name="pdu">
            <device name="pdu" port="1"/>

        hope this helps.

        Bryan Cardillo
        Penn Bioinformatics Core
        University of Pennsylvania
-------------- next part --------------
--- /sbin/fence_apc	2005-10-27 16:12:19.000000000 -0400
+++ fence_apc	2005-12-05 22:33:04.000000000 -0500
@@ -247,7 +247,7 @@
 			/--\s*Outlet Control.*(\d+)\s*-\s+Outlet\s+$opt_n\D[^\n]*\s(?-i:ON|OFF)\*?\s/ism ||
 			# Administrator Outlet Control menu
-			/--\s*Outlet $opt_n\D.*(\d+)\s*-\s*control outlet\s+$opt_n\D/ism
+			/--\s*Outlet $opt_n\D.*(\d+)\s*-\s*control outlet/ism
 		) {

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