For me it is a lot better as I have backups and vaulting that run almost
24/7.  My master server has approx 1.5 hours of idle time per day since
moving to 6.x and doing hot backups.  My cold catalog backups pre 6.x
were running 3+ hours.  That means that 1.5 hours worth of backups x 14
drives doing backups was costing me a lot of backup time missed  21 tape
movement hours lost using cold backups.

Doug Preston

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Dave
Markham
Sent: Thursday, September 25, 2008 9:07 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] NBU catalog backups hot vs cold

guys i'm newish to version 6 and one of the big things is it's ability 
to run hot catalogue backups.

Im on solaris with various media servers yada yada

I'm just confused as to why running a hot catalogue backup, potentially 
when other backups are running, is a good thing?

I have the catalogues cold backed up when scheduled backups have 
finished. This runs automatically.
I also do a second catalogue backup to disk (invoked from a script 
calling bpbackupdb -dpath) which waits until any job has finished before

running.

I just assume this is the best way as you get an up to date latest 
catalogue backup after the nights backups have finished.

Can someone enlighten me or point me to a white paper as to why the hot 
method is better?

I'm sure it is i just can't get it into my small head why at the mo :)

Cheers
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