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Subject: Re: Re[2]: HDD read ahead cache

Re: Re[2]: HDD read ahead cache

From: <>
Date: Thu, 15 Aug 2002 11:49:44 +0100

> > 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

Received on 2002-08-15

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