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Date: Tue, 30 Mar 2004 15:30:40 -0800 (PST)
From: Dan Strick <strick@covad.net>
Message-Id: <200403302330.i2UNUebA001024@mist.nodomain>
To: jdusek@cs.uiowa.edu
cc: freebsd-questions@freebsd.org
Subject: Re: Largest Hard Drive
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>>
> What is the largest hard drive that FreeBSD can suppport?
> Is there a limit?
>>

Since the block number in the kernel buf struct is still a 32 bit
integer (in FreeBSD release 4.9 at least),  I would guess that
FreeBSD can handle at most a Terrabyte (2^40 bytes) or two (if the
block number is unsigned) on a single hard disk.

If you try to make a single file system that large, you may find
that things like fsck don't scale very well.

Dan Strick
strick@covad.net