Comment 372 for bug 59695

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Akshay Srinivasan (akshay.srinivasan) wrote : Re: [Bug 59695] Re: High frequency of load/unload cycles on some hard disks may shorten lifetime

Another interesting observation:
 My hard disk -WD Scorpio - has only three power modes
1-127 Spin down for idle time of ~2 secs + Park heads
128-253 Keep parking heads , without spinning down
254/255 Don't do anything
 Neither Hdparm nor the kernel can control the spin down time of my hard
disk , that is the problem.If I could do that , with -B 1 , the problem
with my hard disk will be solved , could anyone verify this on their
hard disks?
On Sat, 2008-02-09 at 08:43 +0000, Akshay Srinivasan wrote:
> I was listening to my Hard drive , when running Ubuntu.I could hear the
> disk heads parking , but the disk itself doesn't spin down.It spins down
> -standby mode- when one runs 'hdparm -y /dev/sda'.It stayed in standby
> for quite a long time.Doesn't this seem a little odd ?I thought it was
> spinning down when the disk heads parked .
>