Found the same, Andy.
Extract from Chapter 5 of
NBU for Windows Admin Guide II
Changes for NetBackup 6.0 and later
Bare Metal Restore replaces Intelligent Disaster Recovery beginning with the NetBackup 6.0 release. To protect NetBackup 6.0 and later clients, use the Bare Metal Restore option for NetBackup.
You cannot use IDR to protect or recover NetBackup 6.0 or later client computers. However, you can use Intelligent Disaster Recovery on NetBackup
6.0 and later servers as follows:
■ To protect NetBackup 5.1 and 5.0 clients.
■ To generate bootable media for supported clients (master server only). If a backup policy is configured to collect IDR information:
■ Backup jobs for NetBackup clients earlier than 6.0 return a status of 0 (successful).
■ Backup jobs for NetBackup 6.0 or later clients return a status of 1 (partially successful). The NetBackup server tries to collect IDR information from those clients and is unable to do so. If no other problems exist, the client data is backed up.
If you use IDR with NetBackup 6.0 or later to protect NetBackup 5.1 or 5.0 clients, the NetBackup master server must be licensed for IDR.