Newps wrote:

Nobody has to load anything. A few times a year the commercial power
hiccups. When that happens you hear those ugly powering down sounds.
Then the backup power comes online, then everything resets and you are
back to where you were. Whole deal might last 10-15 seconds but it
seems like forever if you have a lot of traffic. No data is lost in
this process.

Newps,

I work at a major medical center. We have emergency power, backed
by redundant generators. It's set up so that if it works as it should,
there aren't any "ugly powering-down sounds", it just comes on. If
the backup generator fails to report to work, there may be a little
glitch before the backup-backup comes online.

Nevertheless, there have been situations where it did not work as
it should, and we have heard ugly powering-down sounds (the truly
essential stuff, like respirators and incubators, have a short-term
battery backup).

I understand what you're saying about how the system is supposed to
work.

My point is that sometimes, for reasonably forseeable circumstances,
the system doesn't work as it's supposed to.

Best,
Sydney