All UPSes suck (was Re: clearblue part deux)

Sun Aug 3 19:38:03 UTC 2003

On Sun, 3 Aug 2003, Ulf Zimmermann wrote:
> Sounds like XO in Fremont ... last weekend their one UPS had a leaking
> capacitor, took out both UPS systems, power was down for at least
> 1.5 hours. Was really nice to move out of Clear Blue in Santa Clara
> to arrive in Fremont and being told power was out.

Sigh, repetition is the mother of learning.  Despite the name, UPSes are
not uninterruptible.  Every UPS vendor has failures, and will have
failures.

If you put all your servers in one location, you will eventually have a
failure.  Diversity begins at home.