Dataguard /replication /streams Background Process
14)DMON-The Data Guard Broker process
15)MRP - Managed Recovery process
*In dataguard this background process that applies archived redologs to standby
16)SNP - The snapshot process.
17)RFS - Remote File Server process -
*In Data Guard, the remote file server process on the standby database receives archived redo logs from the primary database.
*It performs the actual rebalance data extent movements in an Automatic Storage Management instance.
*There can be many of these at a time, called ORB0, ORB1, and so forth.
*It is present in a database instance using an Automatic Storage Management disk group.
*It communicates with the Automatic Storage Management instance.
20)QMN - Queue Monitor Process (QMNn)
*it Used to manage Oracle Streams Advanced Queuing.
RAC Background Process
1)DIAG: Diagnosability Daemon
*It monitors the health of the instance and captures the data for instance process failures.
*This process manages the global enqueue requests and the cross-instance broadcast.
*The workload is automatically shared and balanced when there are multiple Global Cache Service Processes (LMSx).
*The Global Enqueue Service Monitor (LMON) monitors the entire cluster to manage the global enqueues and the resources.
*LMON manages instance and process failures and the associated recovery for the Global Cache Service (GCS) and Global Enqueue Service (GES).
*In particular, LMON handles the part of recovery associated with global resources. LMON-provided services are also known as cluster group services (CGS)
* The Global Enqueue Service Daemon (LMD) is the lock agent process that manages enqueue manager service requests for Global Cache Service enqueues to control access to global enqueues and resources.
* The LMD process also handles deadlock detection and remote enqueue requests. Remote resource requests are the requests originating from another instance.
*The Global Cache Service Processes (LMSx) are the processes that handle remote Global Cache Service (GCS) messages.
* Real Application Clusters software provides for up to 10 Global Cache Service Processes.
The number of LMSx varies depending on the amount of messaging traffic among nodes in the cluster.