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Wadhah DAOUEHI
Wadhah DAOUEHI
Linux certified expert LPI-303, LPI-304 & Oracle DBA (OCP, OCE)
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Category Archives: High Availability

Resize RAC 11gR2 Cluster Health Monitor repository

By Wadhah DAOUEHI | January 6, 2019 - 10:05 pm |January 31, 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 →

Tagged Cluster, Cluster Health Monitor, Database, Linux, Oracle, RAC

Part 2: Active-passive High Availability Solution for Oracle Database without Data Guard.

By Wadhah DAOUEHI | October 18, 2014 - 7:01 pm |June 1, 2018 High Availability, Linux, Oracle, Oracle Database
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The first part. This article is the second part for an Active-passive High Availability Solution … Read More →

Part 1: Active-passive High Availability Solution for Oracle Database without Data Guard.

By Wadhah DAOUEHI | October 15, 2014 - 4:43 pm |June 1, 2018 High Availability, Linux, Oracle, Oracle Database
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This article is the first part for an Active-passive High Availability Solution for Oracle Database … Read More →

DNS configuration to use the SCAN with Oracle RAC Database

By Wadhah DAOUEHI | April 25, 2014 - 12:20 am |June 1, 2018 High Availability, Linux, Oracle
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DNS configuration to use the SCAN with Oracle RAC Database

This article explains how to set up a DNS configuration on Red Hat Enterprise Linux. … Read More →

SAN (iSCSI) and Device-Mapper Multipathing !

By Wadhah DAOUEHI | April 9, 2014 - 2:07 pm |June 1, 2018 High Availability, Linux
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SAN (iSCSI) and Device-Mapper Multipathing !

This article explains how to set up a Device-Mapper Multipath, without DM-Multipath, each path from … Read More →

SAN and OCFS2 over IP Multipathing (bonding) on two Ethernet cards

By Wadhah DAOUEHI | February 12, 2014 - 11:42 pm |June 1, 2018 High Availability, Linux, Oracle
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SAN and OCFS2 over IP Multipathing (bonding) on two Ethernet cards

Disclaimer: The steps described below have only been tested in a lab environment. ORACLE Linux … Read More →

LVM Mirroring: Protect your data from a disk failure !

By Wadhah DAOUEHI | October 19, 2013 - 10:38 am |June 1, 2018 High Availability, Linux
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LVM Mirroring: Protect your data from a disk failure !

  This article explains how to protect your data from a disk failure with LVM … Read More →

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  • Recent Posts

    • Transportable tablespace from 11gR2 to 12cR1
    • Resize RAC 11gR2 Cluster Health Monitor repository
    • Upgrade Oracle Database 12cR1 to 12cR2 with RMAN
    • Change a PDB Character Set within Oracle database 12cR2 (12.2.0.1) using the DMU tool
    • Create a pluggable database 12cR2 from Unplugged PDB using DBCA
    • Unplug a pluggable database 12cR2 using DBCA
    • Create a pluggable database 12cR2 from PDB SEED using DBCA
    • Change Oracle database 12cR2 Name with DBNEWID
    • Upgrade Oracle Database from 12.1.0.2 to 12.2.0.1 using DBUA
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    • Install prerequisites for Oracle database 12R2 on Oracle Linux 7
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    • Oracle Linux Container LXC 7.3 on Oracle Linux 7.3
    • SAN iSCSI on Oracle Linux 7.x using targetcli
    • Enable HugePages RHEL 7/OL 7 within Oracle Database 12c
    • save SQLPLUS commands history on Linux within the package rlwrap (readline wapper).
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    • Upgrade Oracle database from 11.2.0.4 to 12c (12.1.0.2) using the RMAN backup
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    • Part 2: Upgrade Oracle Grid Infrastructure & Database from 11gR2 to 12C
    • Part 1: Install Oracle Grid infrastructure standalone & Oracle Database 11gR2
    • Creation of ASM disks on Oracle Linux using ASMLib
    • Active Oracle database duplication
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