[2365] in SIPB-AFS-requests

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AFS server changes for backups

daemon@ATHENA.MIT.EDU (Marc Horowitz)
Mon May 27 23:34:17 1996

To: sipb-afsreq@MIT.EDU
Cc: jweiss@MIT.EDU
Date: Mon, 27 May 1996 23:34:06 EDT
From: Marc Horowitz <marc@MIT.EDU>

In order to support the DLT drive, it was necessary to use a little
magic to get the stock transarc 3.4a backup software to work on our
AFS servers.  This file documents that magic.  Everything here is done
on all database servers.

A script is installed as /usr/afs/bin/buserver as a wrapper:

    #!/bin/sh
    AFSCELL=athena.mit.edu; export AFSCELL
    exec /usr/afs/bin/buserver.real -servers ronald-ann.mit.edu rosebud.mit.edu

The AFSCELL environment variable causes the daemon to think it's
running in the athena cell.  This causes it to use the wrong server
peers, which is corrected by the -servers argument, and to interpret
the SUsers list in the wrong realm, which, in our environment, is
actually the right realm.  In other words, this way people can
actually do the backups.

The stock buserver is installed as /usr/afs/bin/buserver.real, and
added to the bosserver:

	bos create <servername> buserver simple /usr/afs/bin/buserver -c sipb

No other changes to the servers need to be made.

		Marc


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