Message-ID: <467853BB.1090109@zytor.com>
Date: Tue, 19 Jun 2007 15:07:55 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Chris Snook <csnook@redhat.com>, Jack Stone <jack@hawkeye.stone.uk.eu.org>,
       linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
       akpm@linux-foundation.org, viro@zeniv.linux.org.uk,
       alan <alan@clueserver.org>
Subject: Re: Versioning file system
References: <46731169.2090002@hawkeye.stone.uk.eu.org>	<4673182B.4090800@redhat.com>	<46739E89.1080003@hawkeye.stone.uk.eu.org>	<46781A5B.9090104@redhat.com>	<467829C4.5020101@zytor.com> <20070619225021.225d4c7e@the-village.bc.nu>
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Alan Cox wrote:
> 
> Yes but tdskb:foo.mac[1013,1013,frob];4 is *not* elegant.

I think describing VMS pathname syntax as "not elegant" is kind of like
describing George W. Bush as "not a genius."

> POSIX is very
> clear about what is acceptable as magic in a pathname, and the unix spec
> even more so.  The NetApp approach recognizes two important things
> 
> 1.	Old version access is the oddity not the norm
> 2.	Standards behaviour is important
> 

3. An atomic snapshot is more useful than a bunch of disconnected
per-file version.  Kind of like CVS vs SVN.

	-hpa
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