How NetBackup for SAP performs a split mirror backup using RMAN

Figure: SAP Oracle online and offline backups by using RMAN proxy lists sequence of operations when you use RMAN proxy to perform a backup.

Figure: SAP Oracle online and offline backups by using RMAN proxy

When NetBackup for SAP performs a backup by using RMAN, the following occurs:

1	NetBackup for SAP receives a list of files to back up from RMAN.
2	NetBackup for SAP queries the policy to check whether the Snapshot Client policy attributes are specified.
3	When NetBackup for SAP is ready to back up the files, it sends a request to RMAN. The RMAN puts the data files into backup mode or shuts down. NetBackup sends this request by using an SBT API.
4	Depending on the parameters with which the brbackup command was invoked, RMAN either shuts down the database or puts the database in backup mode. If brbackup is invoked with following command, RMAN shuts down the database: # brbackup -d rman_util -t offline -m full -c force If brbackup is invoked with following command, RMAN puts the database or tablespace into backup mode: # brbackup -d rman_util -t online -m full -c force
5	NetBackup for SAP quickly creates a snapshot of the files to back up. This operation typically takes a few seconds or minutes.
6	NetBackup for SAP notifies RMAN that the snapshot has been taken and that the database can be either started or taken out of backup mode.
7	RMAN either starts the database or takes the database out of backup mode.
8	NetBackup backs up the snapshot that it created.
9	NetBackup returns backup image information to brbackup.