How to verify Sudden Motion Sensor works for my HDD?

[hzxu]

Recently I upgraded my Mid 2012 Macbook Pro's HDD to a Hitachi Travelstar 7k1000 1TB HDD, one thing I noticed is that in case of vibration, there is no "clicking" sound from HDD, with old HDD I can always hear it when vibrating, so I downloaded a command line program called ASMTracker, it shows my SMS is initialised and shows it's values, but I'm a bit worried that it does not actually park the head of HDD in vibration. Is there anyway to verify it? I know the SMART tool, can I see any evidence by comparing any of the SMART values before and after vibration?

Thanks!

 

[sneak3]

I wanted to know that as well.

Bumping.

 

[mojolicious]

I wanted to know that as well.

Bumping.

'Bumping' is actually the answer to the question.

 

[simonsi]

Recently I upgraded my Mid 2012 Macbook Pro's HDD to a Hitachi Travelstar 7k1000 1TB HDD, one thing I noticed is that in case of vibration, there is no "clicking" sound from HDD, with old HDD I can always hear it when vibrating, so I downloaded a command line program called ASMTracker, it shows my SMS is initialised and shows it's values, but I'm a bit worried that it does not actually park the head of HDD in vibration. Is there anyway to verify it? I know the SMART tool, can I see any evidence by comparing any of the SMART values before and after vibration?

Thanks!

How do you test the airbags in your car? Seriously do you want to cause an event that by definition the SMS sensor defines as potentially harmful to the HDD just to test the head parking

Just assume the head park is very quiet, everything about my HGST 1TB is VERY quiet...

 

[rapicell]

The sensor should be on by default, at least for MacBooks that have HDDs as the original drive.

 

[simonsi]

The sensor should be on by default, at least for MacBooks that have HDDs as the original drive.

He's verified the sensor is on, he just doesn't trust it