Re: [arch-general] harddisk suspending far to often

On 12/08/12 at 09:48pm, G. Schlisio wrote:

Am 07.12.2012 01:49, schrieb Calvin Morrison:

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On 6 December 2012 17:05, G. Schlisio wrote:

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Am 06.12.2012 21:07, schrieb Jonathan Steel:

On Thu, Dec 06, 2012 at 10:59:27AM +0100, G. Schlisio wrote:

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after updating my laptop today [0] (no testing enabled) i notice

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that my harddisk keeps spinning down and up every 10 seconds or so. might this be related to the update or where can i stop this?

somehow it resolved itself today. now hdd is running continuously again.

If it happens again, you can check this with:

hdparm -B /dev/sdx

If it's spinning down too often, try:

hdparm -B 254 /dev/sdx

thank you for your advice. hdparm -B /device returns 254 to me now, thats quire expected, because now everything works fine.

i wonder, how/whether it could have been altered yesterday. do programs like powertop touch those values?

If you are messing around with powertop, yes I think that could have been it. Usually powertop can adjust hd settings

i uninstalled powertop after my last post, but yesterday it happend again. when i checked the APM level it was set to 1. i only experience this after suspend to ram. how can i get to know, why this is happening, and maybe stop it?

When I still had rotational hard drives, I noticed that my APM level would reset after suspend. This, I later found, is expected behavior. So you either need to put something in /usr/lib/systemd/system-sleep or make an appropriate service file to reinstate the APM. Why it defaults to 1 I have not idea though. Regards, -- Curtis Shimamoto sugar.and.scruffy@gmail.com