UWMLSC > Beowulf Systems > Medusa
   UPS Testing

Testing Results

Tests completed on 3-18-04

Test 1
Short power failure
This test will effect the 20 nodes attached to one ups.
  • Unplug power cable from ceiling.
  • After one minute plug power cable back into ceiling.
Proper Result: None of the 20 attached nodes should shutdown.
Result: PASSED

Test 2
This test will effect the 20 nodes attached to one ups.

  • The power cord of one ups was pulled from the ceiling.
  • The network cables are unplugged from the highest 10 nodes on the ups
  • The network cable is unplugged from the ups master-node.
  • The power cable is plugged back into the ceiling. (this should be less the 1 min after the power was originally removed from the ceiling)
Proper Result: All 19 slave nodes should shutdown. Master node should not shutdown.
Result: PASSED
(Nodes waited ~2mins before shutting themselves down. I expected the nodes to shutdown after ~20secs. This shows I do not understand exactly how this process works but I did notice all the nodes all shutdown at exactly the same time. There will be more tests of this in the future to try and figure out what is going on.)

Test 3
Long power failure
This test effects 20 nodes

  • Unplug power cable from ceiling.
  • Wait for all 20 nodes to shutdown and plug cable back into ceiling.
Proper Result: All nodes will shutdown.
Result: PASSED (This test is reproduced on 4-1-04)
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