Need information about "bpbrmds" process

An old TN

http://www.symantec.com/business/support/index?page=content&id=TECH44996

http://www.symantec.com/business/support/index?page=content&id=TECH44719

• The default behavior in NetBackup is for a DSSU relocation job to first divide its list of images to be duplicated into separate groups for each retention level represented in the list.  Each of these retention groups is separated into individual batches that do not exceed 25 gigabytes of data per batch. Next, a bpduplicate command is executed to handle each batch of images.  If enough drive resources are available, all of these duplication jobs will immediately activate.  Otherwise, there will be a mix of active and queued duplication jobs based on drive availability.
  
  All of this batching behavior is the responsibility of the bpbrmds process that runs on the media server that originally wrote to the DSSU.  For debugging purposes, the bpbrmds process will write logging information to files in the bpbrmds log directory on the media server, if this directory is present.

And Duplication process flow for NetBackup 6.x describing bpbrmds's part:

http://www.symantec.com/business/support/index?page=content&id=TECH85616