A backup copy operation provides the capability to copy snapshots of the data to any media. It is useful for creating additional standby copies of data and can be performed during the IntelliSnap backup or at a later time. Note that if primary snap copy is configured as Spool copy (copy with no retention rules) then the snapshots will be automatically deleted after the backup copy operation completes successfully.
The number of streams allocated for backup copy operations is the number of streams that you set for the Oracle RAC physical client where you take the snapshot, and not the total number of streams across all the Oracle RAC nodes.