Date: Thu, 11 Sep 2003 17:55:41 -0700 From: Darren Pilgrim <dmp@bitfreak.org> To: freebsd-current <freebsd-current@freebsd.org> Subject: How do put an ATA disk into sleep/standby mode? Message-ID: <20030911175541.2da727af.dmp@bitfreak.org>
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In my workstation, running 5.1-R, I have two disks, one containing FreeBSD, the other Windows. Since the Windows disk isn't used at all when in FreeBSD, I would like to put it into standby or sleep mode (whichever is necessary) to make it spin down, reducing heat and noise production--both of which have become a real problem. This is at least technically possible, since spinning down a disk is part of the APM sleep mode. The capabilities list atacontrol reports for the disk in question shows power management and advanced power management as being supported, and I've gotten Windows to spin down this disk. I haven't had any luck figuring out how to do this in FreeBSD, though. So how do I accomplish this?
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