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> > But when I read the same sector from disk every minute and the disk
> > spins up every time (my 2nd test), it obviously doesn't use the read
> > cache. Or do you have another idea why this happened?
>
> Maybe the cache is invalidated when the drive goes to sleep?

I suspect this sumurises the problem. We don't actually know how the
read cache works, and whether the read cache on different manufacturers
HD's work in similar ways.

I suspect it'll be more profitable to contact the manufacturer involved
(Tosiba?) to ask for more data / data sheets

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• Next message: Björn Stenberg: "Re: Re[2]: Hostility on this list :-("
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• In reply to: Nielsen Linus (ext): "RE: Re[2]: HDD read ahead cache"
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