From owner-cvs-all  Fri Jun 21 19:40:50 2002
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To: Mikhail Teterin <mi+mx@aldan.algebra.com>
Subject: Re: cvs commit: src/include/protocols dumprestore.h ...
Cc: bmah@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
In-Reply-To: Your message of "Fri, 21 Jun 2002 19:16:54 EDT."
             <200206211916.54853.mi+mx@aldan.algebra.com> 
Date: Fri, 21 Jun 2002 19:40:36 -0700
From: Kirk McKusick <mckusick@beastie.mckusick.com>
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	From: Mikhail Teterin <mi+mx@aldan.algebra.com>
	Organization: Virtual Estates, Inc.
	To: bmah@FreeBSD.org, Kirk McKusick <mckusick@FreeBSD.org>
	Subject: Re: cvs commit: src/include/protocols dumprestore.h ...
	Date: Fri, 21 Jun 2002 19:16:54 -0400
	Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org

	Also, what are the benefits of the new filesystem? Is it better
	(faster read/write) for BIGger partitions? Would it make sense for
	me to convert my 60Gb storage to it? Thanks!

		-mi

The primary difference at this point is that UFS2 can support
filesystems bigger than 1 Terabyte. It will eventually support
extended attributes (up to 32Kb of extra stuff associated with
each file such as access-control lists and/or alternative
representations of the file such as an icon). UFS1 already gets
about 90% of the disk bandwidth, so there is little room left
for speed improvements for big files. UFS1 also has soft updates
which gives most of the available performance for small files.

	Kirk McKusick

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