Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: Re: Fw: Creative Labs Zen Xtra

Re: Fw: Creative Labs Zen Xtra

From: Björn Stenberg <bjorn_at_haxx.se>
Date: 2004-12-15

Jürgen Hestermann wrote:
> > a big cache is wasted since it's emptied
> > every time we spin down the disk.
>
> Do all drives do this when spinning down?

I think so, since the purpose of spinning down is to save power. However it is not defined in the ATA specification, so theoretically different drives could differ in this aspect.

> If the cache could be saved it would prevent spin up for quite a long time
> and therefore save batterie drain. I think that disk manufacturers should
> have considered this kind of usage (especially for disks used in mobile
> environments).

2.5" disks are made for laptops, which generally don't spin down the disk until the computer is effectively idle. Therefore spending battery power on keeping the cache alive would likely have little real-world advantages.

-- 
Björn
_______________________________________________
http://cool.haxx.se/mailman/listinfo/rockbox
Received on Wed Dec 15 09:57:13 2004

Page was last modified "Jan 10 2012" The Rockbox Crew
aaa