Backup from snapshot to tape.

[AB_Chaudhry]

Can we copy NetApp snapshot backup direclty to tape throught NetBackup Replication Director, NDMP and SLP?
Only scenario documented is:
Take a snapshot on primary volume on NetApp filer through NetBackup Replication Director and then make a snapshot copy (SnapVault or SnapMirror) and then shift it to Advance Disk or Tape through SLP "Backup from Snapshot" operation.
Whereas we want to copy snapshot backup directly to tape after snapshot on primary volume. 
What does "tar formatted snapshot on tape" means?
 

[AB_Chaudhry]

No ideas?

Is there something wrong with this post?

[Marianne]

Sorry - nothing wrong with your post. Just limited or no experience with Replication Director.

[Yasuhisa_Ishika]

Please tell us more about your plan.

If you just want to take snapshot on primary filer then write backp of this snapshot, and if you don't need to keep this snapshot on primary filer, you can do it with NDMP backup. No need to use Replication Director.

BTW,I could find no "tar-formatted snapshot" but "tar-formatted backup" statement in Replication Director Solution Guide.

[Yasuhisa_Ishika]

Adding to previous post: snapshot is taken before, and removed after each backup session in normal NDMP backups. If you don't need to keep snapshots, and you don't need to leverage replication like SnapMirror or SnapVault, normal NDMP is enough. 

[AB_Chaudhry]

Thanks Ishikawa. You are absolutely right, it is "tar-formatted backup from snapshot". Is it snapshot copy or  Normal backup of files read from snapshot?
 

We are taking NDMP backups to tape and snapshot on Primary filer for quick recovery with volume roll-back feature. We want to use snapshot to take backup on tape rather than using NDMP backup of active files. It is fine if NDMP takes its own snapshot and then remove it after each beackup. 

[Yasuhisa_Ishika]

 Is it snapshot copy or  Normal backup of files read from snapshot?

It is later. Backups to tape or other disk storage unit is done in tar format. data will be read from snapshot.

It is fine if NDMP takes its own snapshot and then remove it after each beackup. 

it is right at least for NetApp. When NDMP backup for active user space starts, NetApp create its own snapshot for NDMP backup and read data from it. You can check this behavior by looking into response from NetApp recorded on ndmpagent unified log.