Date - 09/2010
Affected Product & Version - NetVault: Backup 8.0 and later
Affected Module & Version - APM for Oracle (Version 5.0 and later)
OS Version - all
Application Information - all supported Oracle version
'Ensure this backup is the first on the media' option splits RMAN backup over multiple tapes
RMAN backup will include more than one stream such as for tablespace and archivelog. When RMAN backup is configured with the 'Ensure this backup is the first on the media' option enabled, each data stream would target different tape in order to meet this job option.
Disable the 'Ensure this backup is the first on the media' option so that a whole tape is used for all of the data stream and then next tape is used for spanning when required.