Re: Capacitors, etc., in hard drives and SSD for DBMS machines...

On 7/8/2016 05:23, Jean-David Beyer wrote:
> Why all this concern about how long a disk (or SSD) drive can stay up
> after a power failure?
Never had a power supply fail, have you? Or (accidentally) pull the
wrong cord? :)
> It seems to me that anyone interested in maintaining an important
> database would have suitable backup power on their entire systems,
> including the disk drives, so they could coast over any power loss.
>
> I do not have any database that important, but my machine has an APC
> Smart-UPS that has 2 1/2 hours of backup time with relatively new
> batteries in it. It is so oversize because my previous computer used
> much more power than this one does. And if my power company has a brown
> out or black out of over 7 seconds, my natural gas fueled backup
> generator picks up the load very quickly.
>
> Am I overlooking something?
Yep -- Murphy. And he's a bastard.

--
Karl Denninger
karl(at)denninger(dot)net <mailto:karl(at)denninger(dot)net>
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