2010/12/24 JÃrn Nettingsmeier <nettings@xxxxxxxxxxxxxxxxxxxxxx>: > On 12/24/2010 07:03 PM, Mark Knecht wrote: >> 2010/12/24 JÃrn Nettingsmeier <nettings@xxxxxxxxxxxxxxxxxxxxxx>: >>> the drive is a lot faster and will reach its expected lifetime, hopefully. >> >> Is it? In what way? Something like hdparm -tT or something else? > > sorry, no. sloppy wording. it reacts faster to intermittent requests, > because the heads are already flying and don't have to be un-parked. > throughput is of course the same. > Ah, certainly. Must be true if the heads aren't parked at all. Is that what that firmware does, or does it just slow down how often it's parked? >> Reaching its lifetime would be a good thing. > >>> no. under linux, power consumption will actually go down, since the >>> constant head parking and unparking is avoided. if you implement laptop >>> mode with very large dirty buffers, you might actually reach a point >>> where there's actual benefit to this "green" feature, but i have a very >>> strong suspicion it's just a stupid greenwashing feature they came up >>> with (without expecting much themselves), because marketing wanted it. >>> >> >> I think that really depends on how long it's left asleep. At this 2 >> minute rate I'm seeing I suspect it lowers power to put it to sleep >> but I don't know. > > probably. but i guess you are already using "laptop mode with longer > sync times. i'm sure i saw it wake up and park more often, a few times > per minute iirc. That's what I remembered also but the number I posted in replying to Jouni was 269117 and the Power On Hours counter currently says 7535 which is 313 days or around 10 months. 269117 / 7535 is about 35/hour or roughly 2 minutes. I'm running Gentoo and have no recollection of making any changes or ever finding a setting that slowed it down significantly but I admit I didn't try very hard. I'm just doing backups and figured I'd swap in another drive when it gets up too high. I have a bunch of these drives never opened as I couldn't return them, it was too late, and I never used them so far. - Mark _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
