Date: Tue, 27 Sep 2005 02:07:03 +0200 From: Emanuel Strobl <Emanuel.strobl@gmx.net> To: freebsd-current@freebsd.org Subject: ATA power savings... Message-ID: <200509270207.12112@harrymail>
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[-- Attachment #1 --] Hello, since ataidle from ports doesn't work with ATAmkIII I listened very careful to another thread on a local mailing list and found a very interesting hint: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=65621+0+archive/2003/freebsd-fs/20030413.freebsd-fs It describes that (back then) some disks have a "delayed write" feature. But much more important, there's a patch included which tells atacontrol how to spin disks down. I guess this was for ATAng. Is there any reason not to include that into ATAmkIII? Now that we have such a nice cpufreq meta driver in RELENG_6 I'd really love to see the hungry HD spin down, ideally managed by powerd ;) But even if the "delayed write" feature is problematic, the ataidle feature really should make it into ATAmkIII before 6-RELEASE IMHO... Thanks, -Harry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQBDOI0wBylq0S4AzzwRAi4AAKCOjy+fgYywNIm6+PIYoN8Gt/ub5gCeItH0 XVea2uhPTczH+nh/6cJz/t0= =zKlp -----END PGP SIGNATURE-----
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