Grid and CRS

Hanh Nguyen

Nov 24, 201536 min read

12c Grid Infrastructure Quick Reference

This is a 12c Grid Infrastructure quick reference DETAILS “crsctl stat res -t” output example This example is from a 12c GI Flex Cluster...

0 views0 comments

Step by Step to install oracle RAC in Solaris LDOM

Hanh Nguyen

Nov 17, 20154 min read

Step by Step to install oracle RAC in Solaris LDOM

Step by Step to install oracle RAC 12c in Solaris VM ldm add-vcc port-range=5000-5100 primary-vcc0 primary Create the virtual disk server...

1 view0 comments

Hanh Nguyen

Nov 17, 20159 min read

OCR – Vote disk Maintenace

Prepare the disks For OCR or voting disk addition or replacement, new disks need to be prepared. Please refer to Clusteware/Gird...

1 view0 comments

Hanh Nguyen

Oct 4, 20154 min read

Data Collecting for Troubleshooting Oracle Clusterware (CRS or GI) And Real Application Cluster (RAC

PURPOSE This note lists what to collect for different type of Oracle Clusterware and Real Application Cluster issues, it’s not mandatory...

1 view0 comments

Hanh Nguyen

Oct 4, 20153 min read

How to Replace a Corrupt OCR Mirror File

SOLUTION 1. Start with both OCR copies in the correct state: $ ls -l /ora10g/app/oracle/oradata/V10 lrwxrwxrwx 1 oracle dba 14 Jul 25...

0 views0 comments

Hanh Nguyen

Oct 4, 201530 min read

Step By Step Installation of RAC on IBM AIX

Purpose This document will provide the reader with step-by-step instructions on how to install a cluster, install Oracle Real Application...

0 views0 comments

Hanh Nguyen

Oct 4, 201523 min read

Troubleshoot Grid Infrastructure Startup Issues

Scope This document is intended for Clusterware/RAC Database Administrators and Oracle support engineers. Details Start up sequence: In a...

0 views0 comments

Hanh Nguyen

Oct 4, 20152 min read

How to Proceed from Failed 11gR2 Grid Infrastructure (CRS) Installation

SCOPE DBAs and Support Analysts DETAILS 10g and 11.1 RAC: How to Clean Up After a Failed CRS Install ———————————————————— Not cleaning up...

0 views0 comments

Hanh Nguyen

Oct 4, 20153 min read

How to Deconfigure/Reconfigure(Rebuild OCR) or Deinstall Grid Infrastructure

Scope This document is intended for Oracle Clusterware/RAC Database Administrators and Oracle Support engineers. Details Grid...

0 views0 comments

Hanh Nguyen

Oct 4, 20152 min read

How to Reconfigure Oracle Restart After Server Rename

Goal The server (host) with an existing 11gR2 Server Restart (single instance) installation was renamed and rebooted. Now the ASM startup...

0 views0 comments

Hanh Nguyen

Oct 4, 20153 min read

How to Restore CRS after accidentally run localconfig on RAC system

For 10.2 and 11.1 Case I. “$ORACLE_HOME/bin/localconfig delete” has been done on some node(s) but not all of RAC system Symptoms: no...

0 views0 comments

Hanh Nguyen

Oct 4, 20155 min read

How to Modify Public Network Information including VIP in Oracle Clusterware

Purpose The purpose of this note is to illustrate how to change a public hostname, public IP, a Virtual IP Address (VIP), VIP hostname or...

0 views0 comments

Hanh Nguyen

Oct 4, 201510 min read

Vote disk Maintenance Operations

GOAL The goal of this note is to provide steps to add, remove, replace or move an Oracle Cluster Repository (OCR) and/or Voting Disk in...

0 views0 comments

Hanh Nguyen

Oct 4, 201516 min read

Managing Raw Disks in AIX to use with Oracle ASM

Purpose Effective way to manage the raw disks in AIX to be used by ASM. Steps listed in this document will also help prevent data...

3 views0 comments

How to restore ASM based OCR after complete loss of the CRS diskgroup on Linux/Unix systems

Hanh Nguyen

Oct 3, 20155 min read

How to restore ASM based OCR after complete loss of the CRS diskgroup on Linux/Unix systems

FIX When using an ASM disk group for CRS there are typically 3 different types of files located in the disk group that potentially need...

6 views0 comments

Hanh Nguyen

Oct 3, 20153 min read

How to Modify SCAN Setting or SCAN Listener Port after Installation

// // // // // // // // // A. To update SCAN setting 1. As per documentation “Oracle Grid Infrastructure Installation Guide“, Oracle...

0 views0 comments

Hanh Nguyen

Oct 3, 20152 min read

How to update the IP address of the SCAN VIP resources

Solution Before the SCAN VIPs can be changed, the entry for the SCAN name on the Domain Name Server (DNS) needs to be updated with the...

0 views0 comments

Hanh Nguyen

Oct 3, 20155 min read

Rename Diskgroup having OCR , Vote File , ASM SPILE

Basic Steps to Rename the Diskgroup : 1) Create Temporary diskgroup(TEMP) with suitable redundancy for OCR and Vote files. 2) Move OCR...

1 view0 comments

Hanh Nguyen

Oct 3, 20151 min read

ASM RAC 11.2: Why Voting Disk Are Not Listed Thru ASMCMD or SQL*Plus?, And How To Backup Voting Disk

QUESTION 1 =========== ASM RAC 11.2: Why Voting Disk Are Not Listed Thru ASMCMD or SQL*Plus? QUESTION 2 =========== How To Backup...

0 views0 comments

Hanh Nguyen

Oct 3, 20154 min read

Steps to Remove Node from Cluster When the Node Crashes Due to OS/Hardware Failure and cannot boot u

Initial Stage At this stage, the Oracle Clusterware is up and running on nodes lc2n1 & lc2n2 (good nodes) . Node lc2n3 is down and cannot...

0 views0 comments