Archive for the ‘power’ Category

Critical systems: Power backup

Thursday, August 14th, 2008

Image via Wikipedia Obviously, an ISP doesn’t function without electricity, so we’ve got big investments in redundant power here. A datacenter power system consists of multiple inputs which are arbitrated by a transfer switch, and multiple loads such as UPS systems and air conditioners (CRACs). The primary input is PG&E, and the ...

New UPS on site

Monday, July 28th, 2008

If you think of a UPS (uninterruptible power supply) as just a small box that sits under your desk, you have got to see the monsters we use in the datacenter. Sonic.net took delivery today of the first two boxes that make up the UPS portion of our new 500KVA Mitsubishi ...