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NetBackup Catalog Replication

Created: 19 Feb 2013 • Updated: 27 Mar 2013 | 6 comments
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I'm looking at implementing catalog replication based on this document -  The problem however, is that there's no mention of what specific configuration steps are required to implement the replication.  Setting up a volume with symbolic links is mentioned but how will the replication work?  Can someone please provide your thoughts on this?  Appreciate your help.  Thanks. 

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CRZ's picture

TECH125520 was written for NetBackup 7.0, and I'm hoping you've upgraded to a version far past 7.0.  :)

For 7.5, for example, you would be better off reading Chapter 5 of this Guide:

Symantec NetBackup 7.5 in Highly Available Environments Administrator’s Guide

Good luck! | APPLBN | 761LBN

Zach1003's picture

Thanks Chris.  I've read Chapter 5 of the HA Guide as well before.  It looks pretty much the same as TECH125520 though.  I'm a bit confused around setting up the "common volume".  How is replication going to work? Do I have to set up a separate process for this?   Thanks

Zach1003's picture

Step 5 in "Installing and configuring the primary NetBackup master server" on the HA Guide states to "Move the catalog components to the volume that is replicated to the secondary master server."  

How is this volume going to be replicated to the secondary site - using a 3rd party app, robocopy, etc?  Appreciate if somebody can advise on how this is configured or has previously set this up.  Thanks. 

RLeon's picture

This kind of storage based replication* can be done by 3rd party volume manager apps**, or SAN hardware based LUN/volume cross-site synchronization and mirroring features.

Basically, things you put inside the special volume/folder is replicated or sync/mirrored to another volume/folder that is currently - or will be - mounted to another NetBackup server.
I.e., files you put in on one end will appear in another end.

* As opposed to NetBackup's own application level based replication such as Optimized Duplication, A.I.R., or simply the good ol' catalog backup/duplicate to offsite tapes.

** Or Symantec/Veritas Storage Foundation

Marianne's picture

Have you seen this Related Article in Tech 125520 ?

TECH50942   Veritas NetBackup (tm) Catalog Replication: Conditional Support Statement.

I guess similar Support Statement can be found the High Availibilty Guide.

The requirement for hardware (array-based) or software (such as Symantec/Veritas Volume Replicator) is:

The replication technology employed must maintain a consistent (i.e. write-ordered) copy of the data at all times.

This datasheet tells you how Veritas (Volume) Replicator works: 

Product page:

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links