rsync and vxdump questions

[Christopher777]

Hello all

We currently have our veritas software running on E3500 with Solaris
2.6 Installed.


We had a script set up for backups but the guy who wrote the script has left. We realised after he left that the script wasn't doing level
1 backups but level 0 backups all the time (every night).

The commands for the backup in the script (vxdump and ufsdump) are as
follows:

/usr/sbin/vxdump 1ulbf 96 $TAPE $dir |& grep -v "dumpdates" >>
$DUMP_LOG


/usr/sbin/ufsdump 1ulbf 96 $TAPE $dir |& grep -v "dumpdates" >>
$DUMP_LOG

Can anybody help or explain why these r still doing full backups? and
should the same flags be set for ufsdump and vxdump?

The other thing is that the server gets synced up with another server
every half an hour as so. It it possible that the vxdump etc thinks
all the files on the system have been updated due to the sync?

thanks for an comments

 

[xkjdhdg]

The 1 in front of the ULBF is for a full backup on slices 9 and 6.

 

[Annihilannic]

A level 1 backup will back up everything since the last level 0, which will be everything.

If you want to do incremental backups, you need to increase the level. A typical arrangement would be:

[tt]Day Level
--------- - - - - -
Sunday 0
Monday 2
Tuesday 3
Wednesday 1
Thursday 2
Friday 3
Saturday 4[/tt]

So if things went pear shaped after Friday's backup, for example, you would have to restore Sunday's backup, then Wednesday's, Thursday's and Friday's to do a complete up-to-date restore.

Hope that makes sense.
Annihilannic.

 

[Christopher777]

Thanks for information.

Just another question: for example If u do a level 2 backups on monday to saturday after a level 0 is done on a sunday. Does that mean all files that have changed since the level 0 dump will be backed up each night?

Not that many files on the system change from day to day so this situation would be satisfactory for us.

thanks in advance.

Christopher

 

[Annihilannic]

Yes. Annihilannic.