Veritas-bu

Re: [Veritas-bu] NetBackup 6.5 index size

2008-03-31 12:41:34
Subject: Re: [Veritas-bu] NetBackup 6.5 index size
From: "Paul Keating" <pkeating AT bank-banque-canada DOT ca>
To: <Dariusz.Klar AT Sun DOT COM>, <veritas-bu AT mailman.eng.auburn DOT edu>
Date: Mon, 31 Mar 2008 12:19:25 -0400
Build your catalog filesytem using a Logical Volume Manager, such as
Veritas Volume Manager (Storage Foundations) on a SAN attached LUN. As
your catalog grows you can grow both the LUN and the filesystem hot,
without an outage.

Or, if you have availability of a recent Enterprise class array such as
the HDS USP-V, you can build it on a DP (Dynamic provisioned) LUN (aka
thin provisioning)

The array presents your server with a large fixed size LUN, even several
terabytes, but only occupies as much disk space as needed, initially,
then auto allocates disk as needed.

Personally, I'd just go the volume manager route.

Paul

-- 


> -----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 Dariusz Klar
> Sent: March 28, 2008 9:03 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] NetBackup 6.5 index size
> 
> 
> Ed,
> 
> I know the general rules, but... Another challenge for me is 
> to estimate 
> disk space for NetBackup catalog where total amount of data under 
> NetBackup protection is 3.6 PB (peta bytes) with ability to 
> grow to 8.5 
> PB in the future.
> 
> The difference between 1% and 2% of total amount of protected 
> data for 
> catalog does matter. The difference vary from 36 TB to 85 TB 
> in case of 
> 1% difference. I need to be more precise. If I will say to my 
> customer 
> that they have to buy 255 TB (3% of total amount of data in 
> the future) 
> for NetBackup catalog, I have to be 100% sure what I'm talking about.
> 
> I called Symantec and with that big data volume they are not 
> 100% sure 
> about space size for NetBackup catalog.
> 
> In this case "size" does matter ;-) Small mistake can cost a 
> lot of money.
> 
> regards,
> 
> Darek
> 
> Ed Wilts wrote:
> > On Fri, Mar 28, 2008 at 3:52 AM, Dariusz Klar <Dariusz.Klar AT sun DOT com 
> > <mailto:Dariusz.Klar AT sun DOT com>> wrote:
> >
> >     Recently I noticed that indexes are consuming a lot of 
> disk space.
> >     Does
> >     anyone know the rule, how to plan space for indexes? Looks like
> >     something has changed since older versions of NetBackup.
> >
> >  
> > I don't think anything has changed.  The challenge in 
> planning is that 
> > the catalog size is based on number of files you're backing up, not 
> > the size of the files.  If you back up a lot of small files, your 
> > catalog will be much larger than the site that backs up the same 
> > amount of disk space containint large databases.  The longer the 
> > retentions, the more likely it is that you'll need a larger catalog 
> > for backing up the same amount of disk space.
> >  
> > The golden rule to remember is to never, ever fill your 
> catalog disk.  
> > Use a different file system for your logs since they're the most 
> > likely thing to fill the disk.
> >  
> 
> _______________________________________________
> Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> 
====================================================================================

La version française suit le texte anglais.

------------------------------------------------------------------------------------

This email may contain privileged and/or confidential information, and the Bank 
of
Canada does not waive any related rights. Any distribution, use, or copying of 
this
email or the information it contains by other than the intended recipient is
unauthorized. If you received this email in error please delete it immediately 
from
your system and notify the sender promptly by email that you have done so. 

------------------------------------------------------------------------------------

Le présent courriel peut contenir de l'information privilégiée ou 
confidentielle.
La Banque du Canada ne renonce pas aux droits qui s'y rapportent. Toute 
diffusion,
utilisation ou copie de ce courriel ou des renseignements qu'il contient par une
personne autre que le ou les destinataires désignés est interdite. Si vous 
recevez
ce courriel par erreur, veuillez le supprimer immédiatement et envoyer sans 
délai à
l'expéditeur un message électronique pour l'aviser que vous avez éliminé de 
votre
ordinateur toute copie du courriel reçu.

_______________________________________________
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
<Prev in Thread] Current Thread [Next in Thread>