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Subject: Re: Configurable disk spindown

Re: Configurable disk spindown

From: George Styles \(RipnetUK\) <"George>
Date: Mon, 26 Aug 2002 22:05:52 +0100

But doesnt the movement to sleep position protect the head against
mechanical shock? arent you most likely to drop the thing while getting it
out of pocket to change track?

g


----- Original Message -----
From: "Uwe Freese" <mail_at_uwe-freese.de>
To: "Björn Stenberg" <rockbox_at_cool.haxx.se>
Sent: Monday, August 26, 2002 9:26 PM
Subject: Configurable disk spindown


> Hallo Björn,
>
> Björn Stenberg schrieb am Monday, August 26, 2002, 3:21:16 PM:
>
> BrS> Modified Files:
> BrS> ata.c ata.h
> BrS> Log Message:
> BrS> Added configurable disk spindown. The disk will also now not spin
> BrS> down while you are running around in the dir browser or pressing
> BrS> buttons in the wps.
>
> Really nice work so far! When it spins down or keeps spinned up
> behaves exactly as I like it.
>
> But: Not to spin up the disk speeds up dir-browsing ~ 2 sec or so, but
> the drive moves its heads to a "sleep" position when it doesn't read
> something for about a second.
> Moving the heads out of this sleep position before being ready for
> reading (the next dir) takes about 1 second. (One can test this by
> browsing several directories with a pause of some seconds and browsing
> through several dirs /very/ quickly, so that the hdd doesn't move the
> heads to the "sleep" position.)
>
> Is it possible to prevent the disk to move it's heads to the "sleep"
> position? I think of a do_something() method in ata.c that only reads
> again the last sector that was read and that's called every 0.5
> seconds in the loop before spinning down the disk.
>
> Bye, Uwe.
>
>
Received on 2002-08-26

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