[438] in Info-AFS_Redistribution

home help back first fref pref prev next nref lref last post

Re: AFS and NeXTs

daemon@ATHENA.MIT.EDU (Cal_Thixton@next.com)
Fri Nov 15 19:58:46 1991

Date: Fri, 15 Nov 91 18:31:17 EST
From: Cal_Thixton@next.com
To: Craig_Everhart@transarc.com
Cc: "Michael T. Stolarchuk" <mts@terminator.cc.umich.edu>,


The Workspace has no special knowledge of /Net. It has to do with
the different way that autonfsmount and afsd(?) deal with stats in
/Net and /afs respectively.

When I do this, I generate no network traffic. Autonfsmount fakes
the stat calls until a dereference occurs.

wallingford 70) ls -l /Net 

total 52
lrwxrwxrwt  1 root          18 Nov 13 23:11 acura -> (automount)
lrwxrwxrwt  1 root          17 Nov 13 23:11 adam -> (automount)
lrwxrwxrwt  1 root          20 Nov 13 23:11 agnosis -> (automount)
lrwxrwxrwt  1 root          23 Nov 13 23:11 alexandria -> (automount)
lrwxrwxrwt  1 root          22 Nov 13 23:11 archive01 -> (automount)
lrwxrwxrwt  1 root          21 Nov 13 23:11 arcturus -> (automount)
lrwxrwxrwt  1 root          19 Nov 13 23:11 arthur -> (automount)
lrwxrwxrwt  1 root          20 Nov 13 23:11 ashpool -> (automount)
lrwxrwxrwt  1 root          19 Nov 13 23:11 barnum -> (automount)
lrwxrwxrwt  1 root          22 Nov 13 23:11 beachhead -> (automount)
lrwxrwxrwt  1 root          20 Nov 13 23:11 bgapple -> (automount)
lrwxrwxrwt  1 root          19 Nov 13 23:11 bigbux -> (automount)


But when I do this, I do get network activity:

wallingford 46) ls -l /afs
/afs/prc.unisys.com not found
/afs/spc.uchicago.edu not found
/afs/cs.washington.edu not found
/afs/ni.umd.edu not found
total 12
lrwxr-xr-x  1 1245          14 Apr 13  1988 andrew -> andrew.cmu.edu
drwxrwxrwx  2 root        6144 Oct 10 13:06 andrew.cmu.edu
lrwxr-xr-x  1 13337         10 Oct 23  1990 ce -> ce.cmu.edu
lrwxr-xr-x  1 1245          10 Mar  1  1988 cs -> cs.cmu.edu
lrwxr-xr-x  1 1245          11 Aug 31  1989 ece -> ece.cmu.edu
drwxr-xr-x  4 sys         2048 Oct 28 21:14 umich.edu

Change this behavior and you'll get quite a performance increase in
the Workspace when dealing with /afs.

	thanks
		cal


Begin forwarded message:

Date: Thu, 14 Nov 1991 09:39:59 -0500 (EST)
From: Craig_Everhart@transarc.com
To: "Michael T. Stolarchuk" <mts@terminator.cc.umich.edu>,
        Cal_Thixton@NeXT.COM
Cc: Wallace Colyer <wally+@andrew.cmu.edu>, Info-AFS@transarc.com,
        mts@terminator.cc.umich.edu
Subject: Re: AFS and NeXTs

Um, it seems that there's already some special code in place in
Workspace to deal with ``automount'' names (under /Net).  Is this a
Workspace hack or what?  What attribute is Workspace looking for in
printing ``(automount)'' that it couldn't, or can't, print for names
under /afs?

		Craig


home help back first fref pref prev next nref lref last post