scheduled backups

[mlowe9]

Would anyone be willing to share with us instructions on how to set up a scheduled backup?

I am an AIX guy, and a vendor who sold us this DEC box wants to charge us a fat load of $$$$ to set it up for us. I know with AIX, setting up a backup is a matter of one line in one file (cron).

I can only assume it's this simple for DEC. We have zero experience or knowledge of DEC, but a basic knowledge of UNIX.

We do know how to do a manual backup, but would like to get it on a schedule, so that the only work is changing the tape daily.

Any help is appreciated!
Matt

 

[mlowe9]

Sorry - I forgot to say we are on digital Unix v4.0G

 

[dblair]

schedule your backup thru cron - as you would do with AIX. cron is the same on Unix O/S, but you will have to remember there are differencies in the type of shell (bsh , ksh etc) that the backup jobs uses as cron uses the standard shell.

 

[mlowe9]

I knew the cron part, I don't know how to get the command I need to put in cron. Can you help with that?

 

[dblair]

You use cron to shell (run) scripts or commands.
You will nedd to create a script to run the backup.
Script could use standard Unix commans (eg, tar ,dump)
Example of cron entry to run backup script -
0 20 * * 1-6 /usr/sbin/backup.sh

 

[mlowe9]

Thanks for responding.

I don't think I'm communicating what I need to know. On our AIX server, we use a program called sysback to do our backups, and our cron entry for this is:

00 19 * * * sysback -f/dev/rmt0 -x -T' chrp' -k' mp' 'backupvg hcivg util'

I don't know what the command is I need to put where I have sysback (and all it's arguments). Our vendor showed us how to do it menu-driven, but not the shell-command. If you can give me a shell-command with syntax on how to do a backup, I'm sure we can figure out the correct args for what we want to do.

 

[dblair]

Sysback is an AIX add-on utility ( part of Tivoli ) that must create a system backup of sorts.
There is no standard utility on Tru64 to do this.

Deneding on the numberamd size of filesystems and the type/size of backup device that you are using it would be easier to write a simple scripts to call in the 'dump' command to dump all the file systems to tape.

Or you could purchase backup software to configure (instead of creating a script) like Legato/Arcserve.

 

[mlowe9]

Can you give me an example of a simple script to call the dump command?

 

[dblair]

what apps are running on the server ? Any DB's ?

 

[dblair]

I don;t have access to Tru64 here but your script should look like this .

mt rewind -f /dev/nrmt0h (tape devive)
/sbin/vdump 0uCf /dev/nrmt0h / (root filesystem)
/sbin/vdump 0uCf /dev/nrmt0h /usr
/sbin/vdump 0uCf /dev/nrmt0h /data
etc
etc
mt rewoffl -f /dev/nrmt0h

look at the man page for the vdmp command
Ensure that the filesystem(s) data will fit onto the tape.

 

[mlowe9]

I'm working on this now, Thanks.

Can I ask what the etc's are for?

 

[dblair]

etc...
Other filsystems that you have that require to be in the backup.
This script will create the vdump for each filesystem as a seperate backup on the tape. (Hence the nrmt0h. n = no rewind).
I'm think that you could just issue one vdump command with all the filesystems in it. This would create only 1 backup file on the tape.
eg ,
sbin/vdump 0uCf /dev/rmt0h / /usr /data /whateverelse ...

Please check the vdump man page.