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From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.misc
Subject: Re: Amoeba backups
Message-ID: <10282@star.cs.vu.nl>
Date: 22 Jun 91 16:06:07 GMT
References: <56672@nigel.ee.udel.edu>
Sender: news@cs.vu.nl
Organization: Fac. Wiskunde & Informatica, Vrije Universiteit, Amsterdam
Lines: 14

In article <56672@nigel.ee.udel.edu> new@ee.udel.edu (Darren New) writes:
>
>How, under Amoeba, does one do backups of the file server's disks?

It is relatively straightforward since the files are immutable.  No file can
change out from under you when you are copying it.  The owner of the file
obviously has a capability for it, and can copy it explicitly.  However,
the normal way is to let the replication daemon do the work.  Assuming you
have configured a certain piece of the file system for replication, the
daemon (which has the power equivalent to a superuser) automatically makes
backups for you.  We are currently working on a fully transparent, replicated
file system, but that is not yet done.

Andy Tanenbaum (ast@cs.vu.nl)