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Date:      25 Nov 2003 08:54:58 -0500
From:      Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
To:        Dan Pelleg <daniel+bsd@pelleg.org>
Cc:        questions@freebsd.org
Subject:   Re: FAQ answer unclear: filesystem size limit
Message-ID:  <44vfp8o8nh.fsf@be-well.ilk.org>
In-Reply-To: <u2sznel49he.fsf@pelleg.org>
References:  <u2sznel49he.fsf@pelleg.org>

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Dan Pelleg <daniel+bsd@pelleg.org> writes:

> I am trying to determine the maximum filesystem size on -STABLE. Assuming I
> have a hardware RAID device that appears as a single 1.5TB drive, can I use
> it for UFS1 on -STABLE? The FAQ is saying:
> 
> "For ffs filesystems, the maximum theoretical limit is 8 terabytes (2G
> blocks), or 16TB for the default block size of 8K. In practice, there is a
> soft limit of 1 terabyte, but with modifications filesystems with 4
> terabytes are possible (and exist)."
> 
> Does anyone know what the modifications are, and if they are considered
> stable enough for production use?

Last I recall, that was kind of DG's thing, but most people just
increase the block size (which is an appropriate adjustment for most
really big filesystems anyway -- they tend to be for big files).



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