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Date: Wed, 3 Sep 2003 11:20:47 -0700
From: Brooks Davis <brooks@one-eyed-alien.net>
To: Max Clark <max.clark@media.net>
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Subject: Re: 20TB Storage System (fsck????)
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[Please, please, please fix your mailer to quote properly.  It's very
difficult to read your messages.]

On Wed, Sep 03, 2003 at 11:08:28AM -0700, Max Clark wrote:
> Ohh, that's an interesting snag. I was under the impression that 5.x w/ PAE
> could address more than 4GB of Ram.
> 
> - The PAE support allows FreeBSD machines to make use of more than 4
> gigabytes of RAM. This functionality was originally written by Jake
> Burkholder under contract with DARPA and Network Associates Laboratories.
> Additional changes for individual device drivers will follow in the coming
> weeks.
> 
> If fsck requires 700K for each 1GB of Disk, we are talking about 7GB of Ram
> for 10TB of disk. Is this correct? Will PAE not function correctly to give
> me 8GB of Ram? To check 10TB of disk?

PAE increases the amount of RAM available, but does nothing to increase
the address space so a given process may not address more then 2GB of
RAM.

-- Brooks

-- 
Any statement of the form "X is the one, true Y" is FALSE.
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