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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--nextPart3647600.lZSE4fOD0M Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hello, since ataidle from ports doesn't work with ATAmkIII I listened very careful= =20 to another thread on a local mailing list and found a very interesting=20 hint: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=3D65621+0+archive/2003/freebsd= =2Dfs/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=20 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=20 love to see the hungry HD spin down, ideally managed by powerd ;) But even if the "delayed write" feature is problematic, the ataidle feature= =20 really should make it into ATAmkIII before 6-RELEASE IMHO... Thanks, =2DHarry --nextPart3647600.lZSE4fOD0M Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQBDOI0wBylq0S4AzzwRAi4AAKCOjy+fgYywNIm6+PIYoN8Gt/ub5gCeItH0 XVea2uhPTczH+nh/6cJz/t0= =zKlp -----END PGP SIGNATURE----- --nextPart3647600.lZSE4fOD0M--
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