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From: orc@pell.chi.il.us (Orc)
Newsgroups: comp.unix.bsd.freebsd.misc,comp.os.linux.development.system
Subject: Re: async or sync metadata [was: FreeBSD v. Linux]
Date: 14 Feb 1996 18:45:25 -0800
Organization: By the Holy Claws of Klortho the Magnificent, this IS a fine morning!
Lines: 23
Message-ID: <4fu6o5$1uk@pell.pell.chi.il.us>
References: <4er9hp$5ng@orb.direct.ca> <4fi6gq$3tr@dyson.iquest.net> <4fjodc$o8j@venger.snds.com> <4fopq4$ahl@park.uvsc.edu>
NNTP-Posting-Host: pell.pell.chi.il.us
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:14423 comp.os.linux.development.system:18095
In article <4fopq4$ahl@park.uvsc.edu>,
Terry Lambert <terry@lambert.org> wrote:
>grif@hill.ucr.edu (Michael Griffith) wrote:
>] Very hard indeed. Here it is one more time:
>]
>] sync metadata with async data is not just slower,
>] it is LESS SAFE. This behavour should not be the default
>] on any reasonable system. If you want real safety,
>] then both data and meta need to be synchronous (i.e. no
>] buffer cache for writes). This real safety comes with
>] an huge performance hit (as in MSDOS).
>
>You don't know what you are talking about. I have referenced
>both papers and mathematical models for file system recovery
>to refute this specious claim. The only thing I have seen from
>the opposition is bind assertion. Blind assertion is not proof.
Can you cite a paper or two, please, so we can contact the
authors or their sponsoring organizations to get a copy?
____
david parsons \bi/ Ce n'est pas bizarre. Visitez le volcan, si vous plait.
\/