Summary: Backing up the OS

From: Steve March <Steve.March_at_Airgas.com>
Date: Tue, 10 Apr 2001 11:08:18 -0400

Thanks to everyone who responded. The bottom line is that my method will
work and I should use the '-N' option with the vdump so it doesn't rewind
and the mt command to position the tape for restores.

Thanks,
Steve March
Airgas, Inc.
e-mail: Steve.March_at_airgas.com


-----Original Message-----
From: gary.phipps_at_bt.com [mailto:gary.phipps_at_bt.com]
Sent: Monday, April 09, 2001 3:32 AM
To: Steve March
Subject: RE: Backing up the OS


Steve,

looks fine to me. I don't know the robot command, but the concept is fine.

To restore from the 2nd dump, you simply issue the command

mt -f /dev/nemr0h fsf 1

to jump forward one 'save'.

HTH

--
Gary Phipps
Unix Systems Manager
BT Group Finance
ph: 0121 230 4204
e: gary.phipps_at_bt.com
-----Original Message-----
From: Steve March [mailto:Steve.March_at_Airgas.com]
Sent: Thursday, April 05, 2001 22:19
To: tru64-unix-managers_at_ornl.gov
Subject: Backing up the OS
Can anyone validate the following way I back up the OS?  I have a Alpha 4100
running Digital UNIX 4.0E.
Each Sunday morning I vdump the root directory (/) and the usr directory
(/usr) one after the other on 1 tape using the no-rewind device name.  Here
is part of my script:
----------------------------------------------------
# load first tape for vdump
 
robot load slot 5 drive 0 2>> /tmp/weekendback.log
sleep 180
# vdump root /usr to tape
 
/sbin/vdump -0 -f /dev/nrmt0h / >> /tmp/weekendback.log 2>>
/tmp/weekendback.log
/bin/date >> /tmp/weekendback.log
/sbin/vdump -0 -f /dev/nrmt0h /usr >> /tmp/weekendback.log 2>>
/tmp/weekendback.log
/bin/date >> /tmp/weekendback.log
# Eject tape
sleep 120
robot home drive 0 2>> /tmp/weekendback.log
-----------------------------------------------------
Can I vdump 2 separate file systems onto 1 tape like this?
Does anyone know the vrestore commands I would use to restore these
filesystems from tape?
Is this a good method to back up the OS?
Thank you,
Steve March
Airgas, Inc.
e-mail:	Steve.March_at_airgas.com

Received on Tue Apr 10 2001 - 15:09:41 NZST