On Sat, Dec 4, 2010 at 10:05 AM, Rick Fochtman <[email protected]> wrote: > --------------------------------------------<unsnip>------------------------------------------- > I had almost the exact same experience during the "CHICAGO FLOOD" of 1992, > only our power was down for 2 weeks! Edison dropped the power without > warning to keep water leakage from causing transformer explosions and we > didn't HAVE a UPS. Edison had to inspect every transformer vault in the Loop > before they would restart power and there were still a number of problems. > > Rick
The site manager who was in charge of the building when the UPS was installed had retired. The site had a problem develop with the spinning motor that converted battery power to A/C for the data center. A bearing was out and the motor could not turn. They replaced the bearing a couple of times but kept failing. So they ordered other replacement parts and were on Utility power only until it could be fixed. Weekly UPS testing was disabled. Sunday 1730, power went out. All power in the neighborhood was on, no breakers were thrown. 1800 power came back on and restarted the systems. 2 mainframes, 2 ESS F20s, etc. Lost a lot of time and restarting programs. Monday 1730, power went out. Same thing with no other outages, no breakers. 1800 power came back on and restarted the systems. They kept looking for things that could turn the power off, but did not find anything. Still waiting for parts.The next Sunday at 1730, power went out again. 1800 back on. They finally tracked down a computer that tested the UPS by turning off utility power. They added a check to see if there was UPS power before turning it off. Monday at 1730, power went out again, 1800 back on. They found a second computer programmed the same way and changed it. Parts arrived, and while installing the parts, noted the shaft was worn and they had to fix the shaft to stop tearing up the bearings. We started moving equipment out of that site into the primary site. We started searching for another site further away from the primary. We got one about 150 miles away instead of 2 miles. We close down this site next summer (being converted for use for x86/x64/p servers). -- Mike A Schwab, USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
