All posts by Brijesh
Single Instance to RAC conversion using DBCA :Part-II
This is Part II for Single Instance to RAC conversion. For Part-I click here Pre-requisite before conversion 1. Set up the cluster environment and validate the cluster using clvufy. 2. Copy the pre-configured database image from $OLD_ORACLE_HOME/ assistants/ dbca/ templates/ *.dbf & *.dbc to new rac environmnet $NEW_ORACLE_HOME/assistants/dbca/templates/*.dbf & *.dbc 3. Run ORACLE_HOME/bin/dbca step-1 […]
Read MoreSingle Instance to RAC conversion using DBCA :Part-I
There is three method available, you can use any of them to convert single instance to RAC instance. a. using dbca b. using EM c. using rconfig utility Here we are converting using DBCA (DataBase Configuration Assistant). Conversion of single instance database to RAC database using DBCA consists of two part. In first part, we […]
Read MoreCommon Wait Events in a Real Application Clusters
Difference in single instance and RAC instance: In a single database instance environment, there will be only one set of shared memory segments for the database. In other words, the buffer cache and shared pool are local to that particular instance; at any point in time the processes attached to that particular instance will be […]
Read MoreBackup and recovery of Oracle Clusterware – OCR
The backup of OCR content(Oracle Cluster Registry, to know more about OCR click here) is performed using two methods: Automatic OCR backup Manually OCR backup . 1. Automatic OCR Backup OCR is automatically backed up physically Every four hours At the end of every day At the end of every week To check current location of […]
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