Messages in this thread | | | Date | Mon, 13 Nov 2006 10:48:53 -0500 | From | Jeff Garzik <> | Subject | Re: AHCI power saving (was Re: Ten hours on X60s) |
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Andi Kleen wrote: >> Therein lies a key problem. Turning on all of AHCI's aggressive power >> management features DOES save a lot of power. But at the same time, it >> shortens the life of your hard drive, particularly hard drives that are >> really PATA, but have a PATA<->SATA bridge glued on the drive to enable >> connection to SATA controllers. > > How does it shorten its life?
Parks your hard drive heads many thousands of times more often than it does without the aggressive PM features.
Jeff
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