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How do I start an RFS process in standby database?

by Rhyley Bryan

How do I start an RFS process in standby database?

8.1. 1 Starting Up a Physical Standby Database

  1. Start and mount the physical standby database: SQL> STARTUP MOUNT;
  2. Start Redo Apply or real-time apply: To start Redo Apply, issue the following statement: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE 2> DISCONNECT FROM SESSION;

How do I activate standby?

Activate physical standby database

  1. Step 1 (Optional) Identify and resolve any gaps in the archived redo log files.
  2. Step 2 Initiate the failover operation on the target physical standby database.
  3. Step 3 Convert the physical standby database to the primary role.
  4. Step 4 Shut down and restart the new primary database.

How do I start a standby database?

8.1. 1 Starting Up a Physical Standby Database

  1. Start the database: SQL> STARTUP NOMOUNT;
  2. Mount the standby database: SQL> ALTER DATABASE MOUNT STANDBY DATABASE;
  3. Start the managed recovery operation: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE 2> DISCONNECT FROM SESSION;

What is RFS in dataguard?

The remote file server (RFS) process receives redo data from the primary database either in the form of archived redo logs or standby redo logs. When performing managed recovery operations, log apply services automatically apply archived redo logs to maintain transactional synchronization with the primary database.

Is the RFS server started in standby by default?

Is RFS started in standby by default.Is there any parameter that we need to be set to start RFS process. Yes RFS is background process. Here RFS process is idle its mean theres no archive log generation on Primary.

How does the remote file server ( RFS ) process work?

The Remote File Server (RFS) process writes the redo data to standby redo log files on the standby database. Generating a RFS process trace file may be necessary, for example to diagnose high disk I-O at the standby database ( ). Solution. To view full details, sign in with your My Oracle Support account.

How to check if RFS server is working or not?

Is RFS an background process.How do I check if its working or not.Can I stop and start RFS. Yes. data and writes it to a Standby Redo Log (SRL). RFS sends an acknowledgement disk. When the production database receives this acknowledgement, it acknowledges the commit to the client application and processes the next transaction.

What should I do if my standby database is not working?

1. Shutdown the physical standby database. 2. Determine the current sequence on the primary database. 3. Perform at least three log switches on the primary database. 4. Verify that the logs did not get transferred to the standby archive dest. 5. Start the standby database. 6.

https://www.youtube.com/watch?v=_EvHYAaoXQc

How do I check my MRP process in standby database?

Make sure that Redo Apply is running (so that the change is applied to the standby database). If the following query returns the MRP or MRP0 process, Redo Apply is running. SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY; To verify that deleted datafiles are no longer part of the database, query the V$DATAFILE view.

How do you resolve MRP stuck issues on a physical standby database?

Solution 5 Specify standby_archive_dest the same location as log_archive_dest_1 on the physical standby. Use from ‘location’ attribute in the manual recovery clause. Cause 6: All standby redo log files are active on the standby database. Solution 6: Please make sure you have enough space in the archive location.

How do I check standby logs?

  1. Step 1 : Check the status of database on both server.
  2. Step 2 : Check for GAP on Standby.
  3. Step 3 & 4: Check redo received and applied on standby.
  4. Step 5: Identify the missing archive log file.
  5. Step 6: Copy missing archive log file.
  6. Step 7: Register archive logfile with standby.

How do you check whether physical standby is in sync with the primary or not and resolved gap?

How to Check Whether Physical Standby is in Sync with the Primary or Not and resolved gap ?

  1. Check the name and status of database.
  2. Check for GAP on standby.
  3. Check redo received on standby.
  4. Check redo applied on standby.
  5. Identify missing archive log files.
  6. Copy archive log files.
  7. Register archive log files with standby.

What is LNS and RFS in dataguard?

LNS process of primary database captures redo from redo log buffer. Send it to RFS process of standby database through oracle net. RFS process then writes that redo information to standby redo log files.

How do I know if my standby database is primary?

How do I make my standby database primary?

How do I manually apply archive logs to standby database?

Copy the archive logs from primary to standby (Dbvisit ARCHDEST location), rename the files and then run dbvisit to apply logs. Copy the archive logs from primary to standby (Dbvisit ARCHDEST location), use RMAN to catalog the files and then apply them using RMAN.

How do I manually register Archivelog in standby?

At standby site, Do the log file registration at the standby site until all the missing log files are registered, Use this below command. SQL> alter database register logfile ‘/log/file/location/log_file_name_n. arc’; Now apply would take place and your standby will become sync with the primary.

Why is RFS not starting for standby Ask Tom?

Try defer/enable the archive destinations on the primary to “reset” things. TO avoid in future, have log_archive_processes set slightly higher so that if one gets hung, others will still take up the load 3) sqlnet config issue, so RFS cannot connect to the service specified.

Where are RMAN backups stored on a standby database?

This is important if you want to be able to backup your archive logs on the standby database. My backups will be stored in the /backup/rman folder. It is recommended to perform the backup during a period when the Dbvisit Standby schedule is not running on the standby database.

Why is my Oracle RFS not showing up?

Upon completion of maintenance started standby in the usual manner: alter database recover managed standby database disconnect from session; Just RFS not showing up. To view full details, sign in with your My Oracle Support Community account. Community account? Click to get started!

How to troubleshoot the standby database-Oracle?

If you encounter a problem during standby database preparation, it will probably be one of the following: The Standby Archive Destination Is Not Defined Properly The Standby Site Does Not Receive Logs Archived by the Primary Database You Cannot Mount the Physical Standby Database A.1.1 The Standby Archive Destination Is Not Defined Properly