ASM

ASM How To Create “A CRS Managed” ACFS FileSystem On Oracle RAC Cluster (ASM/ACFS 11.2)
How To Create “A CRS Managed” ACFS FileSystem On Oracle RAC Cluster (ASM/ACFS 11.2)
1. Create the mount points on all the nodes (as root user): # mkdir /goldengate 2. Connect to the ASM instance & create the ACFS diskgroup (from the...
ASM How to Use Udev Rules to Create oracleasm Disks in CentOS/RHEL 8
How to Use Udev Rules to Create oracleasm Disks in CentOS/RHEL 8
This post will help to configure Oracleasm disks using Udev rules in 2 node cluster. On first node 1. List the disks: [[email protected] ~]# lsblk NAME MAJ...
ASM How to Disable os-prober in CentOS/RHEL 7
How to Disable os-prober in CentOS/RHEL 7
What is os-prober The os-prober package detects all operating systems available on the machine and returns the results in a generic machine-readable f...
ASM How to check and repair ACFS with FSCK
How to check and repair ACFS with FSCK
The Problem You noticed many inconsistencies in different asm metadata views, asmcmd and os outputs that are associated with the ACFS file system. Dat...
ASM How to split BCV and open oracle ASM database
How to split BCV and open oracle ASM database
BCV (Business Continuance Volume ) is the target volume for EMC Symmetrix TimeFinder/Mirror process. When a BCV is fully synchronized with a data devi...
ASM Unable to instantiate disk “ASM_DISK” - error on running 'oracleasm scandisks' command
Unable to instantiate disk “ASM_DISK” - error on running 'oracleasm scandisks' command
The Problem The new disk has been assigned to a host and the user needs to run a scandisk. But the command fails to instantiate new disks with the bel...
ASM ASMLib-Managed Disks on Multipathed iSCSI Targets are not Discovered after Server Reboot in CentOS/RHEL 7
ASMLib-Managed Disks on Multipathed iSCSI Targets are not Discovered after Server Reboot in CentOS/RHEL 7
The Problem Oracle Real Application Clusters (RAC) servers run on CentOS/RHEL 7 and utilizing ASMLib-managed iSCSI multipathed disks. Upon server rebo...
ASM Understanding Device Persistence and Oracle ASMLib
Understanding Device Persistence and Oracle ASMLib
Basics This post describes some advantages the Linux specific ASM library provided by Oracle (herein “ASMLib”) brings to the administration of a Linux...
ASM How to load SELinux Module For Oracleasm
How to load SELinux Module For Oracleasm
Question: How to load the SELinux module for oracleasm? When searching for the selinux oracleasm module with the locate command it may return as if th...