Ref: 11640082
Title: Setting Up Automatic Backups
Date: 8/24/90

Copyright 3Com Corporation, 1991.  All rights reserved.

Creating an Automatic Backup Schedule

Look at the current manual schedule you have for backup.  For example,
suppose on Fridays at 9 PM you do a full backup; on Monday and Wednesday
you do incremental backups and appends.  Set up an AUTOTIMS file to match
the schedule.  Each line must contain the day of the week, the time (using
a 24-hour clock) to start the backup, and the three-part name of the source
server:

    Monday 21:00 \\serverA:3com:net\e:-f: /i /a
    Thursday 21:00 \\serverA:3com:net\e:-f: /i /a
    Friday 21:00 \\serverA:3com:net\e:-f:

Note:  There is a template AUTOTIMS file that you can edit to
create your own file.  Use AUTOTIMS.3CM in the C:\3PLUS\3BACKUP
directory.

If you have multiple source servers, you can create one AUTOTIMS
file and specify all the servers in that one file.  Specify the
three-part name of each server.  You can also specify the
partitions or range of partitions that you want to back up and
the type of backup, full or incremental.  If you do not type /i
for incremental a full backup is assumed.  If you do not type /a
for append, the data will not be added to the end of the tape.
Instead, the tape will be erased and then the backup will begin.

Note:  The options for full, incremental, and append can appear
in any order but must appear after the time, three-part server
name, and partitions.

Before you begin, make sure that the \3PLUS directory is shared
and has read\write\create access.

1.  Link to the \3PLUS directory.

    a:\ 3f link g: \\serverA:3com:net\3plus

2.  At the DOS prompt, change to the drive to which the \3PLUS
    directory is linked.

    a:\> g:

3.  At the DOS prompt, change to the 3BACKUP subdirectory.

    g:\> cd 3backup

4.  Edit the AUTOTIMS file, using a text editor for ASCII files.
    Specify the information described above.  For example,

    Monday 20:00 \\serverA:3com:net\e:-f: /i /a
    Thursday 20:00 \\serverA:3com:net\e:-f: /i /a
    Friday 20:00 \\serverA:3com:net\e:-f:

5.  Save the file.


Setting Up Automatic Backups on Multiple Servers

If you schedule multiple backups to a single tape in the backup
server's AUTOTIMS file, you should include the /A parameter (to
append) for every backup except the first backup.  If you omit
the /A parameter for a backup (either full or incremental), that
backup will overwrite all previous backups stored on the tape.

The following is a sample AUTOTIMS file used to automate backup
on multiple servers.  It specifies full backups of Server1,
Server2, and Server3 on Monday of each week and daily incremental
backups on those servers for the rest of the week.  See
"3+Backup" in the 3+ Administrator's Guide, Volume 1, for
details.

    monday 4:00 \\server1:dsd:3com
    monday 5:00 \\server2:dsd:3com /a
    monday 6:00 \\server3:dsd:3com /a
    tuesday 4:00 \\server1:dsd:3com /i /a
    tuesday 5:00 \\server2:dsd:3com /i /a
    tuesday 6:00 \\server3:dsd:3com /i /a
    wednesday 4:00 \\server1:dsd:3com /i /a
    wednesday 5:00 \\server2:dsd:3com /i /a
    wednesday 6:00 \\server3:dsd:3com /i /a
    thursday 4:00 \\server1:dsd:3com /i /a
    thursday 5:00 \\server2:dsd:3com /i /a
    thursday 6:00 \\server3:dsd:3com /i /a
    friday 4:00 \\server1:dsd:3com /i /a
    friday 5:00 \\server2:dsd:3com /i /a
    friday 6:00 \\server3:dsd:3com /i /a


Performing an Automatic Backup

Once you have created a schedule, set up "automatic backup" as
the default mode of operation:

Enter 3BMEN and select Auto Backup (on/off), or type 3B AUTO /ON,
then press Enter to save the change.  3+Backup is now set for
automatic backup.

3+Backup performs the backups according to your schedule.  Make
sure you insert the correct tape in each backup server before the
backup, remove it, label the tape, and log it after the backup.

