Path: utzoo!attcan!utgpu!watmath!watcgl!bmacintyre
From: bmacintyre@watcgl.waterloo.edu (Blair MacIntyre)
Newsgroups: comp.sys.amiga
Subject: Re: Backups
Message-ID: <9875@watcgl.waterloo.edu>
Date: 24 May 89 14:17:46 GMT
References: <9409@polya.Stanford.EDU>
Reply-To: bmacintyre@watcgl.waterloo.edu (Blair MacIntyre)
Organization: UofW Computer Graphics Lab
Lines: 48

In article <9409@polya.Stanford.EDU> rokicki@polya.Stanford.EDU (Tomas G. Rokicki) writes:
>   Let us say that I have a big machine with a huge hard disk
>   connected to the other end of my Amiga's serial port.  I
>   want to run backups over this line (91MB overnight would
>   require at least 38.4K; so I use Perry's dual serial board.)
>   Is there any software out there that supports such a
>   strange backup/restore method?  Or should I just bite the
>   bullet and buy a Mac tape drive for $1300 and pray to find
>   some software that will talk to it?  (Even then it will take
>   three 40MB tapes so the backup won't be completely unattended.)

I thought of two methods:

1) ( Matt, you listening? )

   If the other machine is a Unix box, write a DNET server to allow
   you to write directly to the file system on the other end.  Basically
   you would end up with a device on the Amiga that would allow you
   to use the other file system just like any other amiga device.

2) Do something like:

   Run the backup on the Amiga, directing the output to a file like
	pipe:backup

   run a file transfer ( xmodem, kermit, whatever ) to copy pipe:backup
   to the other end.

   Take the files on the other end and do something with them.

   If you have to change the tapes after 40Meg, you could use Matt's
   backup program with 40Meg file size chunks.  This would, in effect
   create three (for your example) separate pipes

	pipe:backup/file01	pipe:backup/file02	pipe:backup/file03

   which you could upload when the tape is ready.  The beauty is that
   the pipe would block the backup program until you started uploading,
   making this very easy to control.

Well, what do you think?


-- 
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= Blair MacIntyre, bmacintyre@watcgl.{waterloo.edu, UWaterloo.ca}     \\\///  =
=   now appearing at the Computer Graphics Lab, U of Waterloo!         \XX/   =
= "Don't be mean ... remember, no matter where you go, there you are." BBanzai=