Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!


Click here to return to the 'Here's a first hand experience' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
Here's a first hand experience
Authored by: lionel77 on Oct 11, '05 07:05:43PM
While I'm a firm believer in UPS backups, I think this is an exaggeration. I have many firsthand experiences of computers losing power under such circumstances, and have not seen any "fatal" consequences yet. In my experience, there is about a 5-10% chance of data corruption (and a 100% chance that all unsaved data will be lost). But I've never seen any "fatal" hardware failures do to power failure of a protected system.

I once had a 200GB FireWire hard drive die on me because of a power outage. A simple head-crash -- there was nothing I could do to recover the data.
Back in the those days a 200GB FireWire drive was about $400. Luckily I could get it replaced because it was still under warranty.

Since then I've been really paranoid about power supply issues.

[ Reply to This | # ]
Here's a first hand experience
Authored by: justzisguy on Oct 11, '05 11:25:04PM

Pardon my ignorance, but what kind of UPS would kill hardware? Does it not simply turn off once the voltage is ready to dip? Data corruption sure, but I too haven't seen any hardware death as a result of a UPS. Brownouts OTOH, sure.



[ Reply to This | # ]
Here's a first hand experience
Authored by: lionel77 on Oct 13, '05 05:33:46PM

It's not the UPS killing the hardware, it's the sudden loss of power.
If your hard drive is writing or reading while the power supply is interrupted there is a good chance that you get a head crash and the hard drive becomes physically damaged.



[ Reply to This | # ]
Here's a first hand experience
Authored by: mauricev on Dec 13, '05 08:04:16AM

Actually, there is virtually no possibility this could occur. When the power is cut to a drive, it automatically parks the head.



[ Reply to This | # ]
Here's a first hand experience
Authored by: justzisguy on Oct 11, '05 11:25:43PM

Pardon my ignorance, but what kind of UPS would kill hardware? Does it not simply turn off once the voltage is ready to dip? Data corruption sure, but I too haven't seen any hardware death as a result of a UPS. Brownouts OTOH, sure.



[ Reply to This | # ]