I can confirm this, I have a Seagate Momentus 5400.3 sata disk, and it spins off, respin up and again off when I halt my notebook. I had before this disk an IBM/Hitachi one, and it doesn't have this behaviour. Take a look at this bug report: https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.17/+bug/67810 There are some references and some patches against 2.6.20 kernel. This bug is confirmed there. Bye 2007/4/11, Chuck Ebbert <cebbert@xxxxxxxxxx>:
Jan Engelhardt wrote: > On Apr 11 2007 17:07, Chuck Ebbert wrote: >> When I reboot my notebook, it powers off and powers back on. >> On poweroff a loud snapping noise seems to be coming from the >> hard drive. Today I noticed there is no "shutdown: hda" on >> the console when I reboot. Whne I do a normal poweroff the >> message is displayed and there is no noise. Should the IDE >> code be changed so it always shuts down the drive? > > What sort of notebook? What sort of harddisk? Compaq Presario V2000 series, with a new Seagate ST9120821A 120GB 5400RPM drive. > Is it as loud as `hdparm -y /dev/hdX"? That makes no noise at all except normal drive seek noises. > Try `smartctl -d ata -a /dev/hdX | grep -i unload` too. Hmm. Power_Cycle_Count ... 108 Power-Off_Retract_Count ... 90 I did a normal poweroff and the retract count went to 91. There is an almost-unnoticeable click when I do it that way. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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