I've always felt UPS's should be in pairs, one for each side of each server's redundant PSUs. that way you can take one UPS offline entirely for service, whatever, and the systems can continue to be protected by the other UPS via their 2nd PSU.
Tue Feb 3 00:46:24 UTC 2009
John R Pierce <pierce at hogranch.com>
I've always felt UPS's should be in pairs, one for each side of each server's redundant PSUs. that way you can take one UPS offline entirely for service, whatever, and the systems can continue to be protected by the other UPS via their 2nd PSU.