[ltp] Re: Hybrid HDD in X200s?

[Christoph Bier]

Mircea Gherzan schrieb am 11.01.2009 21:46:

> Christoph Bier <christoph.bier@web.de> wrote:
>> Under Linux: I saw it in a meeting. The guy was using a Zen kernel.
> 
> I've looked at the relevant source files within the Zen kernel (.28) and
> there's no difference from the mainline in respect to the UNLOAD
> FEATURE (ata.h and ide-probe.c). The checking is identical. The guy was
> probably using a X200 with a different hard drive.
> 
> Please, could you run a vanilla 2.6.28 kernel and tell us if you get
> the unload_heads exposed by sysfs? That would
> be: /sys/block/sda/unload_heads . I'm thinking about the drive firmware
> version.

I did not run 2.6.28 but a patched 2.6.27 kernel. There is
/sys/block/sda/device/unload_heads.

chris@skull-tp:~$ sudo hdparm -i /dev/sda | grep Model
 Model=ST9250827AS                             , FwRev=3.CMF   ,
SerialNo=            5RG5S1PF

Best
Christoph
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