Veritas-bu

[Veritas-bu] Schedule/job creep

2004-12-06 12:25:56
Subject: [Veritas-bu] Schedule/job creep
From: juanino AT yahoo DOT com (Jerry)
Date: Mon, 6 Dec 2004 09:25:56 -0800 (PST)
I've had this problem.
The short answer is switch to calendar based
scheduling.  I'll admit, I haven't done this yet
either, but here is why:

When using frequency based scheduling, it takes a
frequency like "1 week" and only looks to see if a
backup should run once a week.  At first, this sounds
like what you want, but it's not.  Here is why:  The
frequency is there to prevent you from doing too many
backups as well.  This means if you have windows
opened on mon, tues, wed and thurs for a full for
example, and it runs on monday-- it knows that since
your frequency is set to 1 week, that you don't really
want it to run on tues, wed, and thurs.  So when you
define a window, it's only in the context of the the
frequency hasn't been met yet, then run it.  I had
this problem because I have a 3 day window of Fri,
Sat, Sun.  All kinds of things can happen.  Let's say
you run a manual backup as a test. Wham. You just used
up your once a week frequency, your weekend is going
to get skipped.  In addition frequency based
scheduling has an annoying attribute of starting the
next frequency at the same time-- after all you said
one week, so if your backup couldn't start until sat
for some reason given the above example, then next
time a full week passes, it will be sat, even though
you have an open window defined for friday.

Switching to calendar based scheduling is a lot more
straightforward.  If you don't want to, remember it
like this:  The frequency is how often you want the
scheduler to check to see if it has an open window.  I
set mine to 3 days, even though I only have an open
window once a week.  This way, if I run a manual
backup it doesn't effect it usually, unless it's
within 3 days of a full, and in that case, I don't
mind if it skips it.

Confusing? Clear, clear-er?

--- TLake AT LANDAM DOT com wrote:

> I am running NetBackup 4.5 FP5 and have a problem
> with my scheduled jobs not
> queuing up when the policy window opens.  This
> started about 2 weeks ago and
> has progressively gotten longer.  Last night the
> creep was 3.5 hours.  This
> creep time is across the board for all policies.
> 
>  
> 
> The only changes I have made in the past two weeks
> is I created some log
> folders about two weeks ago and deleted the folders
> about 3 days ago to stop
> the logging.  I stopped and started the NetBackup
> services but didn't reboot
> the Master server.
> 
>  
> 
> My policies frequencies are all set to Day or Week. 
> There are no policies
> set to Hours.
> 
>  
> 
> Any Help would be great.
> 
>  
> 
> Thank You,
> 
>  
> 
> Tom Lake tlake AT landam DOT com
> 
> Network Administrator/Backup Administrator
> 
> 804.267.8086
> 
>  
> 
> 



                
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