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From: WELTYC%cievms@CSV.RPI.EDU.UUCP
Newsgroups: mod.protocols.tcp-ip
Subject: NFS Discussion, File Info from VMS
Message-ID: <8612302130.AA14683@cieunix.rpi.edu>
Date: Tue, 30-Dec-86 15:28:00 EST
Article-I.D.: cieunix.8612302130.AA14683
Posted: Tue Dec 30 15:28:00 1986
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	In this discussion, mention of what information about a file
is necessary for a file system to include was made.  Well, I'm sure most
of us know what UNIX keeps about its files, but here's what VMS keeps:

----
Directory DUA0:[WELTYC.BS]

SFMSS.TXT;16                  File ID:  (7356,8,0)         
Size:            5/6          Owner:    [STAFF,WELTYC]
Created:  18-JUL-1986 10:43   Revised:  18-JUL-1986 10:43 (1)
Expires:      Backup:   10-NOV-1986 12:09
File organization:  Sequential
File attributes:    Allocation: 6, Extend: 0, Global buffer count: 0, No version limit
Record format:      Variable length, maximum 79 bytes
Record attributes:  Carriage return carriage control
Journaling enabled: None
File protection:    System:RWED, Owner:RWED, Group:RE, World:
Access Cntrl List:  None

Total of 1 file, 5/6 blocks.
-----

	I don't know much about the file structure of other non-UNIX systems, 
but I find this much information a bother, especially in trying to bring in 
files (on magtape, say) from other systems.  I would not advocate using this 
much information in some "standard" filesystem structure, but in a filesystem
whose goal is to be heterogeneous, this information needs to be provided for 
as well.  
	The only field here I find really useful is the Access Control List 
(ACL).  One of the many features of this is to allow you to specify specific
users or groups that can access a file or device.  This is an idea foreign to
UNIX (and NFS, too, I think).  A couple people have expressed dissatisfaction
with the protection schemes (or lack of) in NFS, how does the VMS NFS handle 
this stuff?

					-Chris
					 weltyc@csv.rpi.edu