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From: davidr@hplsla.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Incremental backups on DOS
Message-ID: <5280002@hplsla.HP.COM>
Date: Fri, 27-Feb-87 19:22:22 EST
Article-I.D.: hplsla.5280002
Posted: Fri Feb 27 19:22:22 1987
Date-Received: Sun, 1-Mar-87 17:47:20 EST
References: <269@cg-d.UUCP>
Organization: HP Lake Stevens
Lines: 26


I hope some one has one real soon ( a program for doing an incremental  backup
of PC files  over the LAN to a UNIX  machine  with a tape  drive ), as it will
save me a lot of time and  trouble.  If not, I will  have one ( my plans  call
for me to begin creating such a program towards the end of March if I have not
located one ).

Currently  I am  performing  incremental  LAN  backup of over 80 UNIX  systems
nightly ( each system uses the find command with -mtime since the beginning of
the week, accumulating a list which the backup machine then grabs over the LAN
and uses in saving  the  files to tape, by  cycling  through  the list of each
machine saving the files  specified ).  We are currently  adding about 3 dozen
HP Vectras (  AT-compatabiles  ) to the LAN, and will be using FTP  Software's
LAN  programs  for  telnet,  ftp,  and  mail ( we are  ordering  their  tcp-ip
programming  libraries to help in custom  program  creation ).  But they don't
include ( and I can't find anyone who has ) any  facility  for doing  backup's
over the LAN.  Sooo...

The current plan is to write a program that will run on the Vectra at logout (
or at night with an "alarm  clock"  interrupt ) that will go through  the file
system  looking either at the archive bit or date to determine  which files to
save, and then ftp those files over the LAN to a UNIX  machine ( to a separate
directory  for each PC ?  ) which will then save the files to tape.  This will
probably be written quite easily and quickly ?  in Turbo Pascal.

So if someone doesn't come up with one before me...