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Question regarding AIR

Created: 20 Jun 2013 • Updated: 04 Jul 2013 | 12 comments
Zahid.Haseeb's picture
This issue has been solved. See solution.

Environment

Primary SIte

OS = Windows 2008 R2 (64bit)

Netbackup Server = 7.5

Netbackup Server Name = NetbackupTest

Secondary Site

OS = Windows 2008 R2 (64bit)

Netbackup Server = 7.5

Netbackup Server Name = NetbackupTest1

 

Primary Site SLP snap

NBU-AIR-1.png

 

Secondary Site SLP snap

 

NBU-AIR2_0.png

Question:

What is the purpose of Secondary Site Duplication job ?

Operating Systems:

Comments 12 CommentsJump to latest comment

Mark_Solutions's picture

Most people tend to just do the import on the second site but say disk space is at a premium they may want to put a copy on tape for long term retention

So you import at the target retention (it should be that usually rather than a fixed retention - in your case 1 month) and then write a copy to tape with a 7 year retention

Just acts as an extra copy on the DR site and generally would be to tape with a longer retention period

Hope this helps

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ashish.patil01's picture

This will also save you from not running the replication again from SITE A to SITE B as you already have a copy 2 for the image.

huanglao2002's picture

Some customer only need one copy on the DR site. I think it's depend on your company bussniess need.

three symc best practice papers on the attachment.

hope it's help/.

 

AttachmentSize
NetBackup 7.1 Best Practice - Using SLPs and AIR.pdf 570.48 KB
NetBackup 7.5 Best Practice - Using Storage Lifecycle Policies.pdf 821.54 KB
NBU Best Practice - Using tape Storage with Deduplicating Disk Storage (April 2011).pdf 744.45 KB
Zahid.Haseeb's picture

Is that possible that I can only import at secondary site and dont do duplication ? if yes, means I have the backup images at secondary site as well. if correct

then I am not able to add only import SLP, if I click ok with only import policy I see the below message

DUP-DR.png

 

Any comment will be appreciated. Mark as Solution if your query is resolved
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Zahid Haseeb

zahidhaseeb.wordpress.com

Mark_Solutions's picture

You cannot import on the target site and then duplicate that back to the original site (and there would be little point anyway)

If you need an extra copy at the remote site to do a duplication to another storage unit on the remote site (disk or tape)

If you need to replicate cross site (A to B and B to A) then you need two SLPs on each site:

Site A:

AtoBSLP (backup to A / replication to B)

BtoASLP (import from B / duplication locally if required)

Site B:

AtoBSLP (import from A / duplication locally if required)

BtoASLP (backup to B / relication to A)

Hope this helps / makes sense

Authorised Symantec Consultant

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Zahid.Haseeb's picture

I dont want to duplicate it back to source site.

"My agenda is only I want to replicate the backup images from source to target". This required only import policy at target site or something more ?

Any comment will be appreciated. Mark as Solution if your query is resolved
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Zahid Haseeb

zahidhaseeb.wordpress.com

Mark_Solutions's picture

If that is all you want to do then you need your SLP at the source site which as a backup plus a replication step (you must define the retention of the image at the remote site in this one) and then an SLP with exactly the same name at the remote site which just has an import step

That should be all you need

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Zahid.Haseeb's picture

an SLP with exactly the same name at the remote site which just has an import step

I am trying to do the same but facing the below message.

DUP-DR.png

Any comment will be appreciated. Mark as Solution if your query is resolved
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Thanks in Advance
Zahid Haseeb

zahidhaseeb.wordpress.com

Mark_Solutions's picture

You set the retention period on the SLP at the source

On the destination SLP the import must be set to have the remote retention period - it is an option in the drop down box - you cannot use anything else at the remote site

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Zahid.Haseeb's picture

There is no Remote retention period. Below are three available.

- Fixed

- Expire after copy

- Target Retention

I selected Terget Retention and able to click on OK without any message.

Any comment will be appreciated. Mark as Solution if your query is resolved
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Thanks in Advance
Zahid Haseeb

zahidhaseeb.wordpress.com

Mark_Solutions's picture

OK - sorry for the confusion..

So on the source site in the SLP you have a backup job with a fixed retention period on disk and a replication job with a fixed retnetion period

On the remote site you have just an Import job and you set that to Target Retention - this then uses the retention period that you set on the image in the replication job on the source domain

Hope this clears that one up

Authorised Symantec Consultant

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SOLUTION
Zahid.Haseeb's picture

Yes Mark. Thanks for your kind words

Any comment will be appreciated. Mark as Solution if your query is resolved
__________________
Thanks in Advance
Zahid Haseeb

zahidhaseeb.wordpress.com