BE 2012 D2D2T DLM and duplication stage vs. NetBackup SLP...

Hi Forum,

Re: BE 2012

With NetBackup SLP, NetBackup will retain the backup data on the intermediary disk staging device until the SLP duplication to tape stage is complete.

Does BE do this?  I mean, in BE, if a duplication stage is missed or fails, then does BE retain the backup data until it is duplicated to tape, or does BE just follow its usual DLM retention rules.

I guess I could re-phrase this as... In BE are the 'duplication to tape' stages loosely coupled to the backup job, or are they tightly coupled (as in NetBackup)?

Thanks.