> I never understood why a manufacturer would have an option to use a single > power cord to connect to a power supply with two redundant power supplies in > the same server. if someone trips over the single cord, as in the example > below, then both supplies go down. > > why not have all servers with dual power supplies connected to separate UPS > units so that if either the power supply fails, the UPS fails or the circuit > to which the UPS is connected fails, the redundant power supply can take > over. > > i know, many people would consider that kind of redundancy redundant, but we > do not, too many strange thing have happened. i'd rather spend the money on > prevention than waste a day "fixing" something that could have been > prevented while 50 angry office workers and untold numbers of customers are > screaming at me on the telephone and thru the doorway about the fact they > can't get the pictures that their grandkids sent them via e-mail.
I'll go one better. 2 UPSs connected to 2 dual powered power strips (each power strip has 2 power cords, one plugs into each UPS) connected to dual power supplies with separate cords. John Tolmachoff Engineer/Consultant/Owner eServices For You To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
