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- Newsgroups: comp.sys.mac.hardware
- Path: sparky!uunet!elroy.jpl.nasa.gov!grian!alex
- From: alex@grian.cps.altadena.ca.us (Alex Pournelle)
- Subject: Re: HD spindown
- Message-ID: <1992Dec28.212732.10490@grian.cps.altadena.ca.us>
- Organization: College Park Software, Altadena, CA
- References: <7903@tekig7.PEN.TEK.COM> <1992Dec23.192040.4998@gallant.apple.com> <1992Dec25.221851.6049@eng.umd.edu>
- Date: Mon, 28 Dec 1992 21:27:32 GMT
- Lines: 21
-
- russotto@eng.umd.edu (Matthew T. Russotto) writes:
-
- >In article <1992Dec23.192040.4998@gallant.apple.com> stevec@apple.com (Steve Christensen) writes:
-
- >>
- >>Yes, the main reason for spinning down the hard disk on portables is to save
- >>power. The actual power down is done by switching off the hard disk's power
- >>plane, a feature that isn't available on desktop systems...
-
- >But some hard drives will spin down if you send them a SCSI Stop
- >command.
-
- In fact, SCSI Parker sends a SCSI stop out to whatever drives support
- it. It's kind of spooky to have a 300Mbyte Priam full-high, which
- normally shakes the table, spin down! But this makes it mokre likely
- that it's going to be properly stored for shipment...
- --
- Alex Pournelle, freelance thinker
- Also: Workman & Associates, Data recovery for PCs, Macs, others
- ...elroy!grian!alex; voice: (818) 791-7979
- fax: (818) 794-2297 bbs: 791-1013; 8N1 2400/12/3
-