Analyzing and interpreting what causes sessions to wait is an important method to determine where time is spent. In Oracle RAC, the wait time is attributed to an event which reflects the exact outcome of a request. For example, when a session on an instance is looking for a block in the global cache, it […]
Category: ORACLE RAC
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 technology’s development. Password plays an important role in our life. Oracle Database leads the industry in security. To maximize the security […]
ASM -(Sector Disk Drives)
This post is about ASM’s attribute deep knowledge. Before going ahead we must have an idea about the topic. Let’s some line must explain about ASM -(Sector Disk Drives). The database and Oracle’s Automatic Storage Management (ASM) volume manager explicitly understood 4k devices. In this and subsequent versions of ASM, disk groups created on native mode […]
ASM Disk Group Attributes
We are the part of RDBMS world. As a student when we entered in the world of RDBMS we learned about the attributes of the entity. I hope you have the idea what we are going to do in this post. As the heading of the post explains. Today we are going to have look at ASM Disk […]
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 process is initiated when you run the SHUTDOWN command in SQL*Plus. While running this command we must ensure […]
ASM Dynamic Performance Views
We are going to have look at the ASM Dynamic Performance Views. In the database, we have learned about views. Here we are going to focus on ASM Dynamic Performance Views. As we know An ASM instance does not have a data dictionary. The information relating to its configuration and operation is available by querying a set of […]
Oracle RAC 12c Setup Using Virtual Box
In this article, I have described each and every step required for setting up a 2 node RAC12c database using virtual box for testing purpose. Softwares Required: 1. Virtual box : 2. Linux 3. Oracle 12c home: 4. Oracle 12c Grid: Virtual Machine setup: Here we have to set up 2 nodes inside virtual box. […]
How To Change RAC Database Name
This article explains the steps which DBA must use to Change RAC Database Name. Before we must start the steps to change database name. Every DBA must know the condition in which have to change the name of a database. When cloning the database on the same server. When we need to refresh the data. […]
How To Convert A Non ASM Instance To ASM Instance
Let’s have fun with instance today. Being an Oracle DBA we are well known for Instance. DBA’s life starts from Instance. In early days of DBA training, we introduced with Instance. When we enter to the new part of Oracle. we notice new teams. Now I am going to focus on ASM instance. Some starting lines remind the […]
How To Move Voting Disk To Another ASM Disk
This article explains the steps which we use to move VOTING DISK to another ASM DISK. In first few lines remind us about the definition of VOTING DISK and ASM DISK. After complete, we have mentioned the way to add a voting disk to another ASM. What is VOTING DISK? The Voting Disk File is a […]