Recovering OCR using physical backup

Step 1: Identify OCR physical backup using the following command

Step 2: ocrdump

Step 3:  Bring down all instance and database before performing recovery of OCR.

Step 4: Restore backup using OCR file we have got in ocrconfig -showbackup command.

Step 5: Start CRS service on all node.

Step 6: Run […]

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Evaluation and Prediction in Oracle RAC 12c

In a DBA’s routine, we perform thousands of command every day. Sometimes it also happens we don’t know the post-impact of the command. Then, Oracle 12c Comes up with very powerful feature WHAT IF EVALUATION. It shows us the impact of command without actually performing it. So with help of this our life can become […]

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Server Pools in Oracle RAC

Before Release of Oracle Clusterware 11g release 2, we define a specific instance belong to specific node.a DBA manages each instance of the database by defining specific instances to run on specific nodes in the cluster. And it is pretty well with small no of nodes in your RAC database. But when no of nodes […]

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Creating RAC database With PDBS

In this Article we will Create RAC Database with PDBS using DBCA. Step 1 : Once you use dbca , first screen that will open is as below select Create Database and click  next: Step 2 : Select Advanced Mode and click Next Step 3 : Select RAC database as database type and Admin Managed […]

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vipca error in Oracle RAC

Today we are going to learn about the error occurs in the Oracle RAC environment. Vipca is not opening new configuration window and is giving error

To resolve this issue Perform two steps

Now again run vipca and worked fine

Thanks for giving your valuable time to read our post. Stay tuned […]

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ORA-27300: OS system dependent operation

In this article, we are going to have a look at ” ORA-27300″. In this article, we are going to learn how to solve this error. Let’s have fun with ORA-27300 During the creation of a new database for RAC environment using DBCA, It shows the error about invalid grid and diskgroup not mounted.

Cause I check […]

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ORA-29702: ERROR OCCURRED IN CLUSTER GROUP SERVICE OPERATION

This is the post for the error “ORA-29702”. ORA-29702: ERROR OCCURRED IN CLUSTER GROUP SERVICE OPERATION Cause: An unexpected error occurred while performing a CGS operation.   Action: Verify that the LMON process is still active. Also, check the Oracle LMON trace files for errors. ##################################################### ORA-29702: ERROR OCCURRED IN CLUSTER GROUP SERVICE OPERATION ##################################################### […]

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Plug Single Instance PDB to RAC CDB

In this article we will Plug Single Instance PDB to RAC CDB. Single Instance CDB Name Single Instance PDB Name RAC Instance CDB RAC Instance Name RAC Node  globdb pdb1 CDB1 RAC1 Node1 RAC2 Node2 Step 1 : Check status of Globdb and CDB1

Step 2 : Check details of globdb :

Step […]

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ACFS file system Mount and Dismount Operation

Before we shut down ASM instance it is important to dismount acfs file system , Once it is dismounted all open references to Oracle ASM files are removed . If ACFS file system is active and ASM instance is forcibly shut down , acfs file system will be placed in offline error state.If any file […]

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Creating ADVM volume and ACFS File System

To see overview of ACFS file System , Oracle ASM Cluster File System Step 1 : Basic thing to use ACFS file system is compatible.rdbms, compatible.advm parameter should be set to 11.2 or higher.

I got error while updating compatible.advm parameter , to set compatible.advm to 11.2 we need to first start acfsload with […]

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