TITLE    : Howto backup and restore over the network.
OS LEVEL : SCO OSR5 and Unixware 7
DATE     : 20/06/2000
VERSION  : 1.0

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This howto details how that backup a unix machine on a network without a 
tape drive onto another unix machine on the network that has a tape drive.


    +---------------+                   +--------------+
    | Machine A     |                   | Machine B    |
    | (No tape)     |                   | (With Tape)  |
    | 172.22.20.1   |                   | 172.22.20.5  |
    +-------+-------+                   +------+-------+
            |                                  |
            |            network               |
      ------+----------------------------------+----


To backup Machine A onto Machine B's tape drive
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Command to run on Machine B (run this first) :-

ttcp -r -B > /dev/rct0



Command to run on Machine A (run this after the command above) :-

find / -print | cpio -ocvB | ttcp -t 172.22.20.5



To restore Machine A's backup onto Machine A using Machine B's tape drive
-------------------------------------------------------------------------

Command to run on Machine A (run this first) :-

ttcp -r -B | cpio -icvdumB


Command to run on Machine B (run this command after the command above) :-

ttcp -t 172.22.20.1 < /dev/rct0


When restoring a full cpio archive after a system crash :-

1, Install a base SCO operating system from the installation cd.
2, Configure and start the network connection.
3, Create all addition file systems.
4, Shutdown the system and restart in single user mode.
5, Unmount /stand and remount with read/write permissions
6, Mount all addition filesystems
7, Restore the full cpio archive using ttcp. 

Unixware 7 Note :- use /usr/bin/ttcp not /usr/dt/bin/ttcp

Limitations : Cannot span multiple tape volumes.