Video Screencast Help

AIR & Redundancy

Created: 10 Sep 2012 • Updated: 10 Sep 2012 | 4 comments

Version 7.5.3 (Windows)

Hi all, 

I want to create an AIR SLP which incorporates media server redundancy.

Currently the AIR SLP works like this - Site 1 data is backed up through site 1 Media Server, written to site 2 Storage, and replicated to site 3 domain.

Problem is if the site 1 media server goes down, the backups will fail. Unfortunately we can't use a storage unit group for the initial backup, as it's not allowed with AIR replication. (Error 1529)

Ultimately I would like to be able to failover to a site 2 media server, write to site 2 storage and replicate to site 3 domain.

Has anyone found a way around the AIR limitation? Or am I completely missing a way to achieve this?


Comments 4 CommentsJump to latest comment

RonCaplinger's picture

Interesting, just looked up that status 1529:

* Ensure that the source that is specified by either the storage lifecycle policy destination index on the CLI or by indentation in the GUI uses a storage unit (not a storage unit group, storage lifecycle policy or Any Available) that is capable of replication.

That's a big limitation, IMHO from a DR point of view, that we have to use a specific Storage Unit and not a Storage Unit Group.  I may have to rethink my plans for 7.5.x.

Yasuhisa Ishikawa's picture

I understand what you want is to skip backup operation in SLP, and duplication destination(site 2 media in domain 1) come up to backup destionation.
I think this is not possible to dynamically reconfigure SLP.

Also SLP has following limitation.

NetBackup 7.5 Administrator's Guide Volume I for Windows page 473.

Backup operation

Use the Backup operation to create a backup. All Backup operations in a single
storage lifecycle policy must be on the same media server.

Authorized Symantec Consultant(ASC) Data Protection in Tokyo, Japan

V4's picture

Best to place it as an enhancement request under ideas. It's good point you came up with .

bpdown's picture

Thanks guys.

What if I was to give site 1 and site 2 media servers access to the source storage unit that is specified in the AIR policy? The trouble is knowing which media server would be used to do the original backup... and would it provide failover?