Veritas-bu

[Veritas-bu] Virtual Tape Libraries and D2D2T backups

2005-07-18 17:46:06
Subject: [Veritas-bu] Virtual Tape Libraries and D2D2T backups
From: Vincent_Mase AT harvardpilgrim DOT org (Vincent_Mase AT harvardpilgrim DOT org)
Date: Mon, 18 Jul 2005 17:46:06 -0400
Ed :

Thanks for the reply.   We are using DSSU's here too.   For the most part they 
work as advertised.
I am  wondering how you have your storage configured, Raid 5  or RAID 3.
Do you make stage multiple copies to tape



Vincent Mase
Perot Systems
Harvard Pilgrim Health Care Account
617 509 3355


                                                                                
                    
             Ed Wilts                                                           
                    
             <ewilts AT ewilts DOT org>                                         
                           
                                                                                
                 To 
             07/13/2005 05:01 PM                 Vincent_Mase AT harvardpilgrim 
DOT org                    
                                                                                
                 cc 
                                                 veritas-bu AT 
mailman.eng.auburn DOT edu                  
                                                                                
            Subject 
                                                 Re: [Veritas-bu] Virtual Tape 
Libraries and D2D2T  
                                                 backups                        
                    
                                                                                
                    
                                                                                
                    
                                                                                
                    
                                                                                
                    
                                                                                
                    
                                                                                
                    




On Wed, Jul 13, 2005 at 04:38:24PM -0400, Vincent_Mase AT harvardpilgrim DOT 
org wrote:
> Question 2:   Interested in hearing from anyone using DSSU's  and if
> they are experiencing all the headaches that the VTL vendors use as
> selling points for their products.

We're using DSSUs extensively and in general, they work well.  Not ideal
yet, but not so bad either and the price was right (free in the current
version of NetBackup).

DSSUs helped us but we do have occasional issues.  Last week, somebody
built a new server and forgot to put an exclude file on a cluster and we
tried to do a 2TB backup to a 1TB DSSU.  For some strange reason, that
failed :-).  Unfortunately it caused 160 backup jobs to fail since the
DSSU was full.

NetBackup has a bunch of improvements in version 6 for DSSUs.  I'm
looking forward to those and don't expect that we'll ever buy a VTL
here.

Personally, I think that VTLs were a "point-in-time" solution - great at
the time and solved a lot of problems, but long-term I see that enough
functionality will roll into NetBackup to kill off the VTL market in all
but a few niche places.

--
Ed Wilts, Mounds View, MN, USA
mailto:ewilts AT ewilts DOT org




The information contained in this email message and any attachments may be 
privileged and/or confidential.  It is for intended addressee(s) only.  If you 
are not the intended recipient, you are hereby notified that any review, 
disclosure, reproduction, distribution or other use of this communication is 
strictly prohibited.  If you received this email in error, please notify the 
sender by reply and delete the message without saving, copying or disclosing 
it.  Thank you.