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From: giebelhaus@hi-csc.UUCP (Timothy R. Giebelhaus)
Newsgroups: comp.sys.apollo
Subject: Re: Apollo WBAK woes
Message-ID: <388a0c47.bab@hi-csc.UUCP>
Date: Tue, 17-Nov-87 19:51:00 EST
Article-I.D.: hi-csc.388a0c47.bab
Posted: Tue Nov 17 19:51:00 1987
Date-Received: Sun, 22-Nov-87 03:01:40 EST
References: <5400005@iuvax>
Organization: Honeywell CSDD, Golden Valley, MN
Lines: 38
Summary: Why dump over wbak?  Tape swaps work fine for me.

In article <5400005@iuvax>, jec@iuvax.cs.indiana.edu writes:
> 
> 	Is there a package that emulates "dump" on the Apollos.  The RBAK/WBAK
> command set is totally inadequate for doing backups of about 3 Gigabytes.  

Why?  I agree, there should be a dump and a rdump for the Apollos, but
why is wbak inadequate.  I have over 4 Gigabytes and it works fine.
Most systems I have seen other than unix have only incremental and full
backups.

Some hints that might help is to not back up your entire system every
time you do a full backup.  Just backup your user directories and a 
few select system directories.  If you really like, you can do an
incremental on everything else, but I find it unnecessarry.  Another
hint is to look into buying a Megatape tape drive.  You can put about
half a gig on a tape (formatted).

> 	Also a warning: it seems that WBAK has some bad code in it.  If you
> do:
> 
> 	$ wbak -dev m0 -f 1 -fid backup -vid tape1 //junk
> 
> 	it will write the first tape, but after that it will as for another
> tape and you should type either "unit #", "vid xxxx", or "go".
> 
> 	If you type: "vid tape2" for the next tape, it will spin the tape
> for a second or two and then complain about some sort of tape error and
> stop your WBAK.  When this happens to the four tape or a 500MB backup, you
> can imagine it is kind of a pain.  Also, it seems that anything other than
> "go" or carriage return will cause this error too.

Does this happen when you do not specify a -fid?  I do not use the -fid
switch, but I do use the "vid xxxx" all the time.  It works fine.
-- 
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