RAC : 11gR2 Clusterware Startup Sequence
Here is the brief explanation that how the clusterware brings up step by step . 1. When a node of an Oracle Clusterware cluster start/restarts, OHASD is started by platform-specific means. OHASD is the...
View ArticleMigrating Oracle ASM Disk Groups without OCR or Voting Files
To migrate Oracle ASM disk groups without Oracle Cluster Registry (OCR) or voting files to Oracle ASMFD: Log in as the Oracle Grid Infrastructure owner on any node to run the commands in this...
View ArticleBackground Processes in Oracle ASM
Once the ASM instance is started, all the basic background processes, as well as some that are specific to the operation of ASM, are started. Notice that all the ASM processes begin with asm, whereas...
View ArticleNew Background Processes in Oracle 12c
List of New Background Processes in Oracle 12c Name Expanded Name Short Description Long Description External Properties AQPC AQ Process Coordinator Per instance AQ global coordinator AQPC is...
View ArticleMultiplex control file in 11gR2 RAC ASM
After creating 11gR2 RAC database, we wanted to enable multiplexing for the control files. Oracle recommends multiplexing the control files . We are using ASM for the storage of control files. At the...
View ArticleMultiplex Redolog In Oracle RAC
Being an Oracle DBA in the initial year of our we work on the standalone database. In the world of backup, we work on multiplexing of the redo log. But as in single instance database is different from...
View ArticleAsmcmd New Features In Oracle 12c
Let’s have look on New Features in Oracle 12c of ASMCMD. Below are the new features of Oracle 12c version. 1. Connecting to ASM instance of remote node: Now we can connect to asmcmd prompt(asm...
View ArticleShutdown mode in Oracle ASM Instance
Being an Oracle DBA we have learned about the db instance in Oracle database. As we know db instance has shutdown mode. In this post, we are going to have look at Oracle ASM Instance. The ASM shutdown...
View ArticleChanging password securely in Oracle
I must thank my fellow DBA Franky Weber Faust for his publication in his blog. Introduction: – We are living in the world of username and password life. We all have countless password due to...
View ArticleFacts about Instance
Today we are going to have look at some more interesting facts about “Oracle Technology”. This post about is the “ASM Instance and Database Instance”. Being an Oracle DBA our Oracle journey starts...
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