Re: IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer))

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Jens Axboe wrote:


On Thu, Jul 07 2005, Shawn Starr wrote:

Model: HTS548080M9AT00 (Hitachi)
Laptop: T42.

segfault:/home/spstarr# ./a /dev/hda
head parked

Seems to park, heard it click :)


Note on that - if the util says it parked, you can be very sure that it
actually did as the drive actually returns that status outside of just
completing the command.
It's worth noting that you'll need the libata passthrough patch to make this work on a T43..
However, with this patch I'm getting the "head not parked 4c" message, but I can hear the click from the drive.. It takes around 350-400ms for the command to execute, but when repeated, it drops to around 5ms for a short while (with no audible clicking), before reverting to original behaviour after a few seconds.
The clicking and the variation in execution time lead me to think it is parking, but not being reported correctly? 

Regards,
Jon,


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