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Back Up & Restore an Oracle ASM Password File with pwget Command

In this article we are showing how to backup and restore password file of Oracle ASM with pwget command. pwget Purpose Returns the location of the password file for the Oracle ASM or database instance....

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Oracle ASMLIB v/s Oracle ASM Filter Driver (ASMFD)

Oracle ASM Filter Driver (Oracle ASMFD) is installed with an Oracle Grid Infrastructure installation. If you have an existing Oracle ASM library driver (Oracle ASMLIB) configuration, then depending on...

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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...

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Migrating 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...

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Background 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...

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New 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...

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Multiplex 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...

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Multiplex 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...

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Asmcmd 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...

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Shutdown 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...

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Changing 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...

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Facts 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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