V$MANAGED_STANDBY

V$MANAGED_STANDBY displays current status information for some Oracle Database processes related to physical standby databases in the Data Guard environment. This view does not persist after an instance shutdown.

Column	Datatype	Description
`PROCESS`	`VARCHAR2(9)`	Type of the process whose information is being reported: `RFS` - Remote file server `MRP0` - Detached recovery server process `MR(fg)` - Foreground recovery session `ARCH` - Archiver process `FGRD` `LGWR` `RFS(FAL)` `RFS(NEXP)` `LNS` - Network server process
`PID`	`NUMBER`	Operating system process identifier of the process
`STATUS`	`VARCHAR2(12)`	Current process status: `UNUSED` - No active process `ALLOCATED` - Process is active but not currently connected to a primary database `CONNECTED` - Network connection established to a primary database `ATTACHED` - Process is actively attached and communicating to a primary database `IDLE` - Process is not performing any activities `ERROR` - Process has failed `OPENING` - Process is opening the archived redo log `CLOSING` - Process has completed archival and is closing the archived redo log `WRITING` - Process is actively writing redo data to the archived redo log `RECEIVING` - Process is receiving network communication `ANNOUNCING` - Process is announcing the existence of a potential dependent archived redo log `REGISTERING` - Process is registering the existence of a completed dependent archived redo log `WAIT_FOR_LOG` - Process is waiting for the archived redo log to be completed `WAIT_FOR_GAP` - Process is waiting for the archive gap to be resolved `APPLYING_LOG` - Process is actively applying the archived redo log to the standby database
`CLIENT_PROCESS`	`VARCHAR2(8)`	Identifies the corresponding primary database process: `Archival` - Foreground (manual) archival process (SQL) `ARCH` - Background `ARCn` process `LGWR` - Background `LGWR` process
`CLIENT_PID`	`VARCHAR2(40)`	Operating system process identifier of the client process
`CLIENT_DBID`	`VARCHAR2(40)`	Database identifier of the primary database
`GROUP#`	`VARCHAR2(40)`	Standby redo log group
`RESETLOG_ID`	`NUMBER`	Resetlogs identifier of the archived redo log
`THREAD#`	`NUMBER`	Archived redo log thread number
`SEQUENCE#`	`NUMBER`	Archived redo log sequence number
`BLOCK#`	`NUMBER`	Last processed archived redo log block number
`BLOCKS`	`NUMBER`	Count (in 512-byte blocks) of the last write to a redo log, or for a recovery process, the expected final read count
`DELAY_MINS`	`NUMBER`	Archived redo log delay interval in minutes
`KNOWN_AGENTS`	`NUMBER`	Total number of standby database agents processing an archived redo log
`ACTIVE_AGENTS`	`NUMBER`	Number of standby database agents actively processing an archived redo log