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Author: Admin

How to start CRS manually

Posted on 04-Jan-2009 By Admin No Comments on How to start CRS manually

In this Document Purpose Scope How To Manually Start Oracle CRS Clusterware References Applies to: Oracle Server – Enterprise Edition – Version: 10.1.0.2 to 11.1.0.7 Information in this document applies to any platform. Information in this document applies to Unix platforms only. Purpose This article is intended for DBAs having problems to start the CRS…

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Oracle, RAC

10g RAC: Troubleshooting CRS Root.sh Problems

Posted on 04-Jan-2009 By Admin No Comments on 10g RAC: Troubleshooting CRS Root.sh Problems

0g RAC: Troubleshooting CRS Root.sh Problems Doc ID: 240001.1 Type: TROUBLESHOOTING Modified Date : 19-MAR-2008 Status: PUBLISHED Symptom(s) ~~~~~~~~~~ The CRS stack does not come up while running root.sh after installing CRS (Cluster Ready Services): You may see the startup timing out or failing. Example: Successfully accumulated necessary OCR keys. Using ports: CSS=49895 CRS=49896 EVMC=49898…

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Oracle, RAC

Configure ssh authentications for RAC

Posted on 04-Jan-2009 By Admin No Comments on Configure ssh authentications for RAC

Applies to: Oracle Server – Enterprise Edition – Version: 10.1.0.2 to 11.1.0.6 Information in this document applies to any platform. Reviewed 22-Oct-2008 Goal This document will explain how to configure SSH, which is required to run a RAC installation. Following the instructions in the installation guide are also correct, but sometimes this will not work,…

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Oracle, RAC

339939.1 Running Cluster Verification Utility to Diagnose Install Problems

Posted on 04-Jan-2009 By Admin No Comments on 339939.1 Running Cluster Verification Utility to Diagnose Install Problems

In this Document Purpose Scope and Application Running Cluster Verification Utility to Diagnose Install Problems References Applies to: Oracle Server – Enterprise Edition – Version: 10.1 to 11.1 Information in this document applies to any platform. Purpose The purpose of this document is to enable the DBA to diagnose install failures using Cluster Verification Utility…

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Oracle, RAC

751131.1 New Article Error 2819 While Requesting a Systemstate Dump

Posted on 04-Jan-2009 By Admin No Comments on 751131.1 New Article Error 2819 While Requesting a Systemstate Dump

Applies to: Oracle Server – Enterprise Edition – Version: 9.0.1 to 11.1 Oracle Server – Enterprise Edition – Version: 8.0 to 11.1 This problem can occur on any platform. Symptoms Using oradebug to create a systemstate may lead to the following error: oradebug dump systemstate 266 Error 2819 encountered by local process [ospid=5529] or oradebug…

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Oracle, RAC

Adding addidional hard drive and attach it to a linux box.

Posted on 25-Dec-2008 By Admin No Comments on Adding addidional hard drive and attach it to a linux box.

1) Add hard drive in vmware console. Select any SCSE disk type. 2) From vmware itself you will know that what will its sd number. like will it be sda,sdb.. or sdz. 3) start virtual machine and do the following as root: # fdisk /dev/sdg1 Here create a primary partition and write partition table. now…

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Linux/Unix, shell

Oracle10g – Using SQLAccess Advisor (DBMS_ADVISOR) with the Automatic Workload Repository

Posted on 22-Dec-2008 By Admin No Comments on Oracle10g – Using SQLAccess Advisor (DBMS_ADVISOR) with the Automatic Workload Repository

PURPOSE This article is a step by step demonstration on how to use the Oracle10g SQLAccess Advisor (DBMS_ADVISOR) package to get recommendations on what Materialized Views to create in order to support a given set of queries (a workload) issued on the database. The workload is imported from the Oracle10g Automatic Workload Repository using a…

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Oracle, SQL scripts

SQL_PROFILE – I explaination

Posted on 22-Dec-2008 By Admin No Comments on SQL_PROFILE – I explaination

Checked for relevance on 12-May-2008. Clarification/Explanation ========================== The query optimizer can sometimes produce inaccurate estimates about an attribute of a statement due to lack of information,leading to poor execution plans. Traditionally, users have corrected this problem by manually adding hints to the application code to guide the optimizer into making correct decisions. For packaged applications,…

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Oracle, SQL scripts

shutdown linux

Posted on 14-Dec-2008 By Admin No Comments on shutdown linux

shutdown -h now

Linux/Unix, shell

Processes parameter and its dependencies on OS kernel parameters

Posted on 19-Nov-2008 By Admin No Comments on Processes parameter and its dependencies on OS kernel parameters

At this time in 800P, we are having following parameter set. NAME TYPE VALUE ———————————— ———– —————————— processes integer 3500 sessions integer 9000 The main parameter is “processes” parameter as it depends upon the # of semaphores in the system. This parameter depends upon followng kernel values. nproc – Maximum number of processes that can…

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Linux/Unix, shell

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