Veritas-bu

Re: [Veritas-bu] NBU catalog backups hot vs cold

2008-09-25 16:09:30
Subject: Re: [Veritas-bu] NBU catalog backups hot vs cold
From: "Conner, Neil" <neil AT mbari DOT org>
To: A Darren Dunham <ddunham AT taos DOT com>, Veritas List <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Thu, 25 Sep 2008 12:32:40 -0700
> Because you can.  --And it's reliable.


On 9/25/08 10:39 AM, "A Darren Dunham" <ddunham AT taos DOT com> wrote:

> On Thu, Sep 25, 2008 at 05:07:15PM +0100, Dave Markham wrote:
>> 
>> I'm just confused as to why running a hot catalogue backup, potentially
>> when other backups are running, is a good thing?
> 
> Because you can.
> 
> If your catalog backup takes 6 hours, and you don't have 6 hours of
> downtime from backups, it's going to be hard to accomplish.
> 
>> I have the catalogues cold backed up when scheduled backups have
>> finished. This runs automatically.
> 
> Not everyone has a time when scheduled backups finish.
> 
>> I just assume this is the best way as you get an up to date latest
>> catalogue backup after the nights backups have finished.
> 
> You can run the hot backup at the same time.
> 
>> Can someone enlighten me or point me to a white paper as to why the hot
>> method is better?
> 
> You can run cold backup when other backups aren't running.
> 
> You can run hot backup when other backups aren't running, or if they
> are.

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