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From: brnstnd@kramden.acf.nyu.edu (Dan Bernstein)
Newsgroups: comp.unix.wizards
Subject: Re: Another reason I hate NFS: Silent data loss!
Message-ID: <16553.Jun1903.00.5691@kramden.acf.nyu.edu>
Date: 19 Jun 91 03:00:56 GMT
References: <4339.Jun1501.31.5191@kramden.acf.nyu.edu> <1991Jun18.064615.21165@thunder.mcrcim.mcgill.edu>
Organization: IR
Lines: 12

In article <1991Jun18.064615.21165@thunder.mcrcim.mcgill.edu> mouse@thunder.mcrcim.mcgill.edu (der Mouse) writes:
> In article <4339.Jun1501.31.5191@kramden.acf.nyu.edu>, brnstnd@kramden.acf.nyu.edu (Dan Bernstein) writes:
> > I just ran about twenty processes simultaneously, each feeding into
> > its own output file in the same NFS-mounted directory.  About half
> > the data was lost: truncated files, blocks full of zeros, etc.
> Was it a hard mount?  Then report a bug to your vendor.  Otherwise, you
> asked for it, you got it.

Uh, nothing in the NFS documentation says ``soft mounts are buggy, do
not use them.'' Hard mounts and soft mounts show similar failures.

---Dan