Category Archives: High Availability

Convert RAC 19c administrator managed to policy manager

By Wadhah DAOUEHI | July 11, 2021 - 10:13 am |July 11, 2021 High Availability, Oracle, Oracle 19c, OracleLinux8

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This article explains the steps to convert Oracle database 19c RAC 2 nodes administrator managed … Read More →

Convert Oracle RAConeNode to RAC 19c, Database is administrator managed

By Wadhah DAOUEHI | July 8, 2021 - 12:05 am |July 8, 2021 High Availability, Oracle 19c, Oracle Database, OracleLinux8

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This article explains the steps to convert an existing Oracle database 19c (19.9) RAConeNode to … Read More →

Convert Oracle RAC to RAConeNode 19c, Database is administrator managed

By Wadhah DAOUEHI | July 7, 2021 - 11:41 pm |July 7, 2021 High Availability, Oracle 12c, Oracle Database, OracleLinux8

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This article explains the steps to convert an existing Oracle database 19c (19.9) RAC 2 … Read More →

Upgrade Oracle Database RAC 2 nodes CDB, 2 PDBs from 19.3 to 19.9

By Wadhah DAOUEHI | July 7, 2021 - 10:46 pm |July 7, 2021 High Availability, Linux, Oracle 19c, Oracle Database, OracleLinux8

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This article explains the steps to upgrade Oracle Database RAC 2 nodes with CDB mode … Read More →

Upgrade Oracle Clusterware GI 19c from 19.3 to 19.9

By Wadhah DAOUEHI | July 4, 2021 - 9:03 pm |July 4, 2021 High Availability, Linux, Oracle 19c, OracleLinux8

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This article explains the steps to upgrade Oracle Clusterware Grid Infrastructure 19c from 19.3 to … Read More →

Check Oracle Clusterware patch release

By Wadhah DAOUEHI | July 2, 2021 - 7:27 pm |July 4, 2021 High Availability, Linux, Oracle 19c

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1.Check Oracle Clusterware software version on both nodes: [root@host01 ~]# crsctl query crs softwareversion -all … Read More →

RAC 12cR2 Cluster Bug: HANG DUE TO HIGH GC INDEX OPERATIONS/ENQ: TX ROW LOCK CONTENTION WAITS: Bug resolved via Patch 28023081

By Wadhah DAOUEHI | March 31, 2020 - 10:49 pm |March 31, 2020 High Availability, Linux, Oracle, Oracle 12c, Security

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Installing the patch 28023081 to resolve the Bug In Oracle database RAC 12.2.0.1 : HANG … Read More →

Bug while creating new administrator manager RAC 12cR1 while we have one

By Wadhah DAOUEHI | December 5, 2019 - 5:54 pm |December 5, 2019 High Availability, Linux, Oracle, Oracle 12c

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We find a bug/Problem while creating new administrator manager RAC 12cR1 while we have one … Read More →

Install Oracle database 12cR1 RAC 3 nodes on Oracle Linux 6u10

By Wadhah DAOUEHI | May 31, 2019 - 6:16 pm |May 31, 2019 High Availability, Linux, Oracle, Oracle Database

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This article explains the steps to install and create an Oracle database 12cR1 RAC 3 … Read More →

Resize RAC 11gR2 Cluster Health Monitor repository

By Wadhah DAOUEHI | January 6, 2019 - 10:05 pm |May 10, 2019 High Availability, Linux, Oracle, Oracle Database

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In a RAC environment of one of my customers within RAC 2 nodes 11.2.0.4, the … Read More →