On sam., 2011-08-13 at 17:16 +0200, Björn A. Herwig wrote: > the offender is /usr/lib/pm-utils/power.d/readahead: > > $ > PM_FUNCTIONS=/usr/lib/pm-utils/pm-functions > /usr/lib/pm-utils/power.d/readahead > false > Setting readahead for /dev/sda1 to 256...Done. > Setting readahead for /dev/md0 to 256...Done. > $ hdparm -t /dev/md0 > > /dev/md0: > Timing buffered disk reads: 466 MB in 3.01 seconds = 154.69 MB/sec > > Hm, so what is the cleanest solution to this problem?
There might be some way to setup pm-utils to not do anything on this raid array. I'm not exactly sure how it's related to xfpm, but the fact that the “spin down disk on ac” setting didn't work, there might be a bug there, which I'll try to investigate. Regards, -- Yves-Alexis
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