Re: Filesystem corrupts after power failure

The Natural Philosopher wrote:

Use a UPS.

At least NEVER EVER have a Unix/Linux PX set to autoboot on power
recovery.. one time in about 3 the power goes down AGAIN when you are
accessing boot sectors, and you can kiss the disk goodbye..you should
examine the algorithms the power companies use to restore tripped power
lines..often its try three times and then quit. Each time you MAY get
partial restoration of power..and then out it goes again.

There is NOTHING you can do in software to prevent unscheduled power
interruption causing potential disk damage.

I set mine to autoboot on recovery, but the problem to which you allude is
not a problem for me. I have the UPS set so that it waits 300 seconds after
power is restored, or until the battery is at least 50% charged, whichever
is later, before it restarts the computer. So those brief restores of power
immediately followed by another failure do not cause a problem.

Of course, having 66 minutes of reserve power does not hurt either.

--
.~. Jean-David Beyer Registered Linux User 85642.
/V\ PGP-Key: 9A2FC99A Registered Machine 241939.
/( )\ Shrewsbury, New Jersey http://counter.li.org
^^-^^ 12:00:01 up 17 days, 21:09, 3 users, load average: 4.20, 4.20, 4.24
.

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