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New Server Rack UPSes

  • Saturday, January 22 2011 @ 12:25 AM UTC
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Today I replaced the old UPSes that had been powering our server rack... well, I should say that I replaced the dead one as well as its brother who was still hanging on for dear life.

This is the vintage of old UPS I removed:



We replaced the old units with APC Smart-UPS 2200VA SUA2200RM2U. Each unit individually provides enough capacity to power the entire rack. All of our new servers have redundant power supplies, so we will split each server's power feed over two UPSes. Besides making battery maintenance easier, this arrangement reduces the impact of single power supply, UPS, or circuit failure.

Here is a picture of the freshly installed units at the bottom of our server rack:



I've been using APC rackmount battery backups for years. I know we will not need to think about UPSes for a long time.
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