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duplicate backup

Created: 14 May 2013 • Updated: 17 Jun 2013 | 7 comments
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i have 100 policies for different OS and i take my backup on Datadomain (VTL) and disk.

i need to duplicate the backup to another library on lto4 media.

what is the best way to that for all backup?


Operating Systems:

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Marianne's picture

The fact that you have VTL in your environment means that you have Enterprise Disk license, right?

If so, you have hopefully configured disk storage as Advanced disk and not Basic disk?

VTL and Advanced disk can be duplicated using Storage Lifecycle Policies. (No additional licensing needed.)

The backup and duplication destination is configured in the SLP and policy STU is then replaced with the SLP. Backup and duplication destination can have different retention levels.

Duplications are automated this way and if the duplication fails for any reason, it will be retried until successful.

See chapter 14 of NBU Admin Guide I:

The alternative is NetBackup Vault option (separately licensed).

Or else your own bpduplicate scripts....

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
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muhanad.daher's picture

Thank you marrianne,

you explanation for disk backup, but what about tape media backup.


Muhanad Daher

Senior Data Center Engineer

Jaykullar's picture

What Marianne is saying is create and SLP to duplicate from your disk storage to your tape media storage unit.

muhanad.daher's picture

i mean from media tape to media tape


Muhanad Daher

Senior Data Center Engineer

Marianne's picture

SLP supports tape to tape by default.

I only pointed out disk because Basic Disk is not supported with SLP.

See the section in Admin Guide I as per my previous post.

Also see NetBackup 7.5 Best Practice - Using Storage Lifecycle Policies

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
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mikent's picture


Marianne is right, You need to configure SLP.

This what i do in our environment and it is working fine.
You can define rules to duplicate from disk to Tape or from tape to tape.

The document Marianne refer to are excellent.



Nathan Mike

Senior System Engineer

LPI1-C and CLA-11 Novell Certified Linux Administrator


Mark_Solutions's picture

Just to back up everyone else - SLPs are the way to go - unless your backups have already run in which case you will need to duplicate them manually via the Catalog section of the admin console

Also note that once you start to use SLPs that the retention periods in schedules no longer have any meansing and all retentions are determined by the SLP itself

As such you will not only need SLPs for disk to VTL and VTL to Tape but also per retention period

So you may end up with:







Hope this makes sense! Once you have these set the storage destination in the policy attributes to use the Weekly SLP and then on the Daily Schedule override it to use the Daily SLP and on the Monthly Schedule override it to use the Monthly SLP

Sounds complicated but works great!

Hope this helps

Authorised Symantec Consultant

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