[Linux-cluster] After APC switch was called with fence_node - server stays shut down - what can be modified?

[Alan A]

I am using HP Proliant DL385s - new ones with Dual Quad Core AMD Opteron(tm)
Processor 2384 and 32G of memory. I am using APC Power Switches for fencing.
When I issue fence_node clusternode1 - sometimes it works like a charm and
sometimes server stays down, like it was shutdown, although power on the APC
switches was reinstated. I can see the green light on the APC Switches but
if the node stays shutdown there is no green light on the Power Supplies.
What could be wrong, what should I check?

-- 
Alan A.
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