Date: Mon, 17 Nov 1997 05:46:41 -0800 (PST) From: Donald Burr <dburr@POBoxes.com> To: Timothy J Kniveton <tim@CMU.EDU> Cc: freebsd-hardware@FreeBSD.ORG Subject: RE: HD Spin-down Message-ID: <XFMail.971117054852.dburr@POBoxes.com> In-Reply-To: <4oPvCRC00YUx0kJUA0@andrew.cmu.edu>
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-----BEGIN PGP SIGNED MESSAGE----- My secret spy satellite informs me that on 17-Nov-97, Timothy J Kniveton wrote: >Does anyone have comments about a good way to get the HD to spin down >into power saving mode? I enabled it in my BIOS, but found that the >system's periodic syncs caused this to not work. So then I changed >kern.update to be some ridiculously high value around 10 hours. > >Today I found that this was a _really_ bad idea, when I was toying >with my sound drivers and the system froze. I lost a lot of info; >luckily most of it was easily replaceable. > >So can anyone tell me the "right" way to do this? thanks. I recently reserached this because of a similar problem: I wanted my notebook computer's HD to not keep spinning up (so that the APM power management stuff could actually do some good). Unfortunately I found there's really no good way of doing this except, as you say, upping the kernel update thingie. So I did that, and I trained myself to type "sync;sync;sync" at the shell prompt every x minutes (or whenver I did something major like write my next assignment for c++ class). - --- Donald Burr <dburr@POBoxes.com> - Ask me for my PGP key | PGP: Your WWW HomePage: http://DonaldBurr.base.org/ ICQ #1347455 | right to Address: P.O. Box 91212, Santa Barbara, CA 93190-1212 | 'Net privacy. Phone: (805) 957-9666 FAX: (800) 492-5954 | USE IT. -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBNHBLQ/jpixuAwagxAQGtOwP/Ulo1IxNQBBjHaWjF7MG1FOTjsrRYUcOz fuR3YTxz4q/JE+SXL1cV7rdJXXzLMbEpdgiSno3SQxzj106jFjPpH/G3lasdhW56 UH+3jWt40+kFZOUdeVct4MfpF2R7vtlsmCI4RGjyaGNVOuvhWRz8yevrtyWUZ85W gZIJILLIfMA= =rwfu -----END PGP SIGNATURE-----
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