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From: jas@MONK.PROTEON.COM (John A. Shriver)
Newsgroups: mod.protocols.tcp-ip
Subject: re: Need information on NFS
Message-ID: <8612222306.AA15428@monk.proteon.com>
Date: Mon, 22-Dec-86 18:06:38 EST
Article-I.D.: monk.8612222306.AA15428
Posted: Mon Dec 22 18:06:38 1986
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Why no server NFS in PC-NFS?

Because the MS-DOS file processor is not re-entrant, and is single-
threaded. Any attempt to share the file processor between two
processes ranges from hairy to dreadful. It can be done, but you have
to monitor some undocumented "file system busy" or "bios busy" bit. Of
course, some PC software vendors have done this, but they do use a bit
more memory (ex: Vianet), and replace the file processor to do it.

Maybe Sun will do it someday, but it will be hard work, and a memory
pinch. Maybe just wait for "MS-DOS 5.0."