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Subject: Re: 8MB buffered hard drive could do?
From: roland (for_spam_at_gmx.de)
Date: 2004-04-14


hi!
i`m not really sure, but afaik this has been discussed and the problem is:
rockbox shuts down the hdd to save power - and to really save enough power,the drive
is put into a "deep" sleep mode which usually results in the interal disk-cache being
cleaned. so it cannot be used for buffering.
putting it into a "not so deep" power-save-mode to preserve the cache-contents would
result in an overall bigger power consumption - bigger than that, what is saved from
the fewer disk spinups as a result of the 8mb cache...

maybe somebody can confirm what i said?

regards
roland

----- Original Message -----
From: "Joseph Jones" <joe_at_bumpycarrot.cjb.net>
To: "Rockbox development" <rockbox_at_cool.haxx.se>
Sent: Wednesday, April 14, 2004 12:09 PM
Subject: Re: 8MB buffered hard drive could do?

> I doubt it. It uses the ATAPI interface, so it may as well be the same
> as any other drive.
>
> Joe
>
> Cristian wrote:
> > Hi, Looking around, I saw a IBM hitachi 80 gb 4200 rpm hdd with 8 mb buffer. Is it possible somehow to exploit the 8 mb buffer
for the archos? if so, we would have a unit with 10 mb without the 8mb mod!
> >
> > http://www.simply.co.uk/productinformation/49499/WW/HITACHI_2.5INCH_80GB_4200RPM_9.5MM_UDMA100_8MB/index.htm
> >
> > Bye, Cristian
> >
> > _______________________________________________
> > http://cool.haxx.se/mailman/listinfo/rockbox
> >
> >
> _______________________________________________
> http://cool.haxx.se/mailman/listinfo/rockbox
>

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