* 2010-10-09 unresponsive power cycled. 
 * 2010-10-09 Sep 10 18:38:01 unresponsive power cycled.  RAID1 out of sync and rebuilt. raid rsync completed by 21:15
 * 2011-08-09T15:35:15  system unresponsive, [wiki:ippc11-2011-08-09-crash messages during boot], power cycled by gavin	
 * 2011-10-17T14:32:16  system unresponsive, nothing displayed on console, power cycled by gavin
 * 2011-11-07T16:00 same as above. cycled by Mark.
 * 2011-11-07T21:00 same as above. cycled by Mark and would not reboot this time. left off for couple hours and then booted.
 * 2011-11-14T14:50 same as above, but tried to force down by running 8 cpu loads. again, would not reboot after down. 
 * 2012-03-05T14xx looked as if ippc11 had a memory allocation error in ppStack. Serge tried running memtester and when killed the program left the load >60 while idle. Rebooted and memory allocation error in ppStack no longer present.