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Strategies & Market Trends : A.I.M Users Group Bulletin Board

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To: budweeder who wrote (17232)	11/7/2001 6:49:51 AM
From: Steve Grabczyk	Read Replies (1) of 18928

From what I've been told, it's usually a mechanical failure involving the read/write heads literally 'crashing' on the surface, destroying the data. My brother once told me that the heads used to be 'parked' off the surface when not in use, but that slows the I/O rates, so that isn't typically done these days. I don't know this for sure as I'm not an engineer. Maybe when Bob G. gets back he can explain it further. Still, having some type of automatic backup process is really the best ounce of prevention one can have. In our operation at work, we have at least 15 servers plus a few larger Unix based computers for our main systems. These are all backed up every night to tape and other drives. The tapes are rotated over a three week schedule (21 sets of tape) and stored off site. The correct tapes are dropped off and the prior evening's are picked up every day. Regards, Steve

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