Veritas-bu

[Veritas-bu] Full vs Incremental Backup

2002-04-30 12:36:36
Subject: [Veritas-bu] Full vs Incremental Backup
From: dritschel62 AT yahoo DOT com (Douglas Ritschel)
Date: Tue, 30 Apr 2002 09:36:36 -0700 (PDT)
What about ndmp backups? 


--- scott.kendall AT abbott DOT com wrote:
> 
> Yes, with NT it doesn't matter what class.  A
> differential incremental
> (usually referred to as incremental by other backup
> apps) will clear the
> archive bit after the backup, which will effect a
> subsequent backup regardless
> of class (or even backup applications).
> 
> A cumulative incremental (usually referred to as a
> differential) will backup
> things that have changed (again, based on the
> archive bit) but will not clear
> the archive bit after the backup, thus not effecting
> subsequent backups.  If
> you want to test a backup against the server but
> don't want to effect it's
> next full or incremental use this (in the same class
> or different... doesn't
> matter).
> 
> ... and as others were saying, for UNIX NetBackup is
> Class specific on
> incrementals.
> 
> 
> - Scott
> 
> 
> 
>                                                     
>                                                     
>                          
>                     "Donaldson, Mark"               
>                                                     
>                          
>                     <[email protected]   
>     To:     "'Jeff Kennedy'" <jlkennedy AT amcc DOT com>,
> "Donaldson, Mark"          
>                     om>                             
>     <Mark.Donaldson AT experianems DOT com>                
>                          
>                     Sent by:                        
>     cc:     "'David A. Chapa'"
> <david AT xbpadm-commands DOT com>, "Veritasbu        
>                     veritas-bu-admin AT mailman DOT eng.   
>     (E-mail)" <veritas-bu AT mailman.eng.auburn DOT edu>   
>                          
>                     auburn.edu                      
>     Subject:     RE: [Veritas-bu] Full vs
> Incremental Backup                  
>                                                     
>                                                     
>                          
>                                                     
>                                                     
>                          
>                     04/29/2002 11:29 AM             
>                                                     
>                          
>                                                     
>                                                     
>                          
>                                                     
>                                                     
>                          
> 
> 
> 
> 
> Ahh! Archive bit.  I was speaking to unix clients
> but there may be difference
> between NT clients and Unix clients.  (Unix has no
> archive bit...).
> 
> 
> -Mark
> 
> 
> -----Original Message-----
> From: Jeff Kennedy [mailto:jlkennedy AT amcc DOT com]
> Sent: Monday, April 29, 2002 10:26 AM
> To: Donaldson Mark
> Cc: 'David A. Chapa'; Veritasbu (E-mail)
> Subject: Re: [Veritas-bu] Full vs Incremental Backup
> 
> 
> 
> 
> 
> Yes, please let us know.  Someone else asked me who
> it was I got this
> info from.  After going over my notes it turns out
> it wasn't Veritas
> direct but a VAR SE.  He said it was a function of
> the OS as to atime
> and archive bit settings.
> 
> 
> ~JK
> 
> 
> > "Donaldson, Mark" wrote:
> >
> > I'm running a test now - I'll check back with
> results.
> > -Mark
> >
> > -----Original Message-----
> > From: David A. Chapa
> [mailto:david AT xbpadm-commands DOT com]
> > Sent: Monday, April 29, 2002 10:02 AM
> > To: Jeff Kennedy; Donaldson Mark
> > Cc: Veritasbu (E-mail)
> > Subject: RE: [Veritas-bu] Full vs Incremental
> Backup
> >
> > Who did you confirm it with at Veritas?  I'd like
> to talk with
> > them...since
> > its always been same class only.  the current
> architecture of the
> > product
> > does not function that way...unless 4.5 has some
> fancy new feature.
> >
> > Hey, I may be dead wrong too...I'll track down one
> of the NBU
> > developers
> > here at the show and ask them.
> >
> > David
> >
> > <><><><><><><><><><><><><><><><><><><><>
> > David A. Chapa
> > NetBackup Consultant
> > DataStaff, Inc.
> > http://www.consulting.datastaff.com
> > 847 413 1144
> > ---------------------------------------
> > NBU-LSERV AT datastaff DOT com - Adv. Scripting
> > http://www.xbpadm-commands.com
> >
> > -----Original Message-----
> > From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> > [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On
> Behalf Of Jeff
> > Kennedy
> > Sent: Sunday, April 28, 2002 5:42 PM
> > To: Donaldson Mark
> > Cc: Veritasbu (E-mail)
> > Subject: Re: [Veritas-bu] Full vs Incremental
> Backup
> >
> > I got an answer from Douglas Ritschel regarding
> this and the answer is
> >
> > yes, incrementals are schedule and class
> independent.  Any incremental
> >
> > (regardless of class or schedule) is based on the
> last full
> > (regardless
> > of class or schedule).  I confirmed this with
> Veritas.
> >
> > Be careful with those Offsite pools..... :-[
> >
> > ~JK
> >
> > "Donaldson, Mark" wrote:
> >
> > >
> > >
> > > I'm testing some new stuff, so I'm doing a full
> backup to a test
> > pool,
> > > then deleting the images later.
> > >
> > > It just occurred to me: Is the incremental
> backup of a server the
> > > changed files as compared to the most recent
> full backup within the
> > > same class or any class.
> > >
> > > -Mark
> >
> > _______________________________________________
> > Veritas-bu maillist  - 
> Veritas-bu AT mailman.eng.auburn DOT edu
> >
>
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> 
> 
> --
> =====================
> Jeff Kennedy
> Unix Administrator
> AMCC
> jlkennedy AT amcc DOT com
> 
> 
=== message truncated ===


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