Steps to add diskgroup in ASM

We know what is ASM in Oracle. Today we have look on diskgroups. In this article we have discussed the technical definition on ASM  diskgroup in first two paragraphs after that we have the steps which we use to add ASM diskgroup The main components of ASM are diskgroups, each of which comprises of several physical […]

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Oracleasm Utility For ASMLIB

In this article, we are going to have look on Oracleasm Utility For ASMLIB.These lines explain the technical definition of Oracleasm The oracleasm command utility is part of the Oracle ASMLib, and you only use oracleasm commands when you want Oracle ASMLib to be able to access your ASM disks. Oracle notes that the ASMLib is an […]

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Quorum failure group in Oracle ASM

Voting files manage information about node membership. OCR is a system that manages cluster and Oracle Real Application Clusters (Oracle RAC) database configuration information. A quorum failure group is a special type of failure group and disks in these failure groups do not contain user data. A quorum failure group is not considered when determining […]

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Deleting diskgroup via asmcmd

I must thank my fellow DBA Franky Weber Faust for his publication in his blog. The goal here is to show that via asmcmd it is also possible to remove a disk group. Let’s briefly see how to do this. We list the disk groups:

So we tried to delete the diskgroup:

Note that […]

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ORA-15032: Not All Alterations Performed

While setting attribute on a ASM diskgroup, we got below error.

Solution: Alter operations on ASM diskgroups need to be done from sysman user , instead of sysdba user.

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Introducing new disks to ASM using ASMFD

I must thank my fellow DBA Franky Weber Faust for his publication in his blog. This article provides the information to create new disks to ASM using ASMFD. In my cluster, I have 2 nodes: london1 and london2. From one of the ready nodes the newly added shared disk:

Note that this disk has […]

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Separating OCR and Voting Disk in Oracle Clusterware 12c

I must thank my fellow DBA Franky Weber Faust for his publication in his blog. Objective: Describe the advantages of separating OCR and RV and also present the process needed to do this. NOTE: Although the procedure was performed in version 11gR2, the steps are the same for version 12c. In this article, we will […]

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Creating diskgroup via asmcmd

I must thank my fellow DBA Franky Weber Faust for his publication in his blog. Introduction: – This article is about creating disk-group via asm cmd. Being an Oracle DBA we have knowledge of ASM. Automatic Storage Management (ASM) is Oracle’s logical volume manager, it uses OMF (Oracle Managed Files) to name and locate the database files. […]

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