Re: Odd behaviour of device in response to idleimmediate with unload

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Evgeni Golov <sargentd@xxxxxxxxxxxx> wrote:
> On Mon, 10 Nov 2008 18:00:18 +0900 Tejun Heo wrote:
>
>> Is the phy event before or after head unloading?
>
> How do I check this?

# dmesg
# echo 3000 > /sys/block/sda/device/unload_heads &
# dmesg

The first call to dmesg is only to make sure that it is in the cache so
the second won't be blocked by the park request.

Regards,

Elias
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