HP A.06.11 - Manual (Page 31)

specified in the backup specification. Further on, ob2rman.pl prepares the
environment to start the backup, and issues the RMAN backup command. RMAN
instructs the Oracle Server processes to perform the specified command.
The Oracle Server processes initialize the backup through MML, which establishes
a connection to the Data Protector Backup Session Manager. The Backup Session
Manager starts the General Media Agent, sets up a connection between MML and
the General Media Agent, and then monitors the backup process.
The Oracle Server processes read the data from the disks and send it to the backup
devices through MML and the General Media Agent.
RMAN writes information regarding the backup either to the recovery catalog (if one
is used) or to the control file of the Oracle target database.
Messages from the backup session are sent to the Backup Session Manager, which
writes messages and information regarding the backup session to the IDB.
The Data Protector General Media Agent writes data to the backup devices.
Restore flow
A restore session can be started using:
• Data Protector GUI
• RMAN CLI
• Oracle Enterprise Manager GUI
You must specify which objects are to be restored.
A restore from the Data Protector user interface is triggered by the Data Protector
Restore Session Manager, which starts the ob2rman.pl command. Ob2rman.pl
prepares the environment to start the restore, and issues the RMAN restore command.
RMAN checks the recovery catalog (if one is used) or the control file to gather the
information about the Oracle backup objects. It also contacts the Oracle Server
processes, which initialize the restore through MML. MML establishes a connection
with the Restore Session Manager and passes along the information about which
objects and object versions are needed.
The Restore Session Manager checks the IDB to find the appropriate devices and
media, starts the General Media Agent, establishes a connection between MML and
the General Media Agent, and then monitors the restore and writes messages and
information regarding the restore to the IDB.
The General Media Agent reads the data from the backup devices and sends it to
the Oracle Server processes through MML. The Oracle Server Processes write the
data to the disks.
Integration guide for Oracle and SAP 31