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Oracle

Oracle E-Business Suite and 12cR1 database in Extended support - What to do?

Introduction If you are one of the folks who have already upgraded the production E-Business Suite database to 19c ...

Oracle

Troubleshooting Oracle Cloud Infrastructure Automatic Backups

Background I could start this blog the same way I started this one because everything is supposed to be easy and at a 1 ...

Oracle

Why It's Good Practice to Run Datapatch -prereq after Creating Database

Starting with Oracle 12c, running datapatch may be required after creating a database, depending on the version and the ...

Oracle

Using MDBUtil To Create Grid Infrastructure Management Repository Database

Whether Grid Infrastructure Management Repository (GIMR) database MGMTDB is required or not depends on the version of ...

Oracle

OEM 13c Monitoring Features: Part 1

This is the first in a series of blog posts covering the most important topics you should know to completely monitor ...

Oracle

Why you should not uninstall Database Vault from a CDB

Important Notice Now that we are fully into database upgrades, here is an important item to be aware of: As you may ...

Oracle

Exadata Smart Scan: A Quick Overview

Introduction I decided to write about Exadata Smart Scan feature for this blog post. Why Smart Scan? Well, because it ...

Oracle

How to Find Clusterware Configuration Details Using srvctl

At times, you may be required to gather information about Oracle Clusterware configuration details. Instead of running ...

Oracle

How to use createGoldImage For Cloning in 19c

According to the Oracle Database Upgrade Guide, the traditional clone.pl script has been officially deprecated. The ...

Oracle

How to Reduce Exadata Core Count

During preparation for a client's datacenter migration, we decided to move services one-by-one to the datacenter / ...

Oracle

How to delete an RAC Database Using DBCA silent mode

During a recent Proof of Concept (POC) involving the migration of a RAC non-CDB to a CDB, I ran into a few snags that ...

Oracle

How to work around OMS 12.1.0.3 error: Metric evaluation error start – Get dynamic property error

Background Have you received this error on OMS 12.1.0.3? "Metric evaluation error start – Get dynamic property error," ...

Oracle

Minimal Networking Knowledge Recommended for DBAs

In a recent post, I summarized what I consider to be the minimal topics one should be familiar with in order to do ...

Oracle

How To Fix ASM Disk Header Status from "FORMER" To "MEMBER"

I made an error when creating an Oracle ASM disk group which resulted in not being able to drop or mount the disk group ...

Oracle

How To Downgrade Grid 19c Clusterware to 12.1

There may be many reasons for downgrading from Grid 19c to 12.1; however, the reason I am downgrading is to rerun a ...

Oracle

Issues and workarounds for Exadata Patching

This post describes some of the most recent issues I have faced while patching an Oracle database machine (Exadata). ...

Oracle

How To Reclaim ASM Disks

The project I have been working on is migrating GoldenGate trails from DBFS and ACFS. Now that the migration has ...

Oracle

Custom fix required when using latest JDK with Oracle E-Business Suite R12.1.3

Update 11-JUN-2021: Doc ID 2353710.1 has been updated. It is recommended now to apply two patches: 10.1.3 Home Patch ...

Oracle

How to fix Error: OMSPatcher finds that previous patching session is not yet completed

When planning a patch for a client's OMS, I found the following: OMSPatcher finds that previous patching session is not ...

Oracle

How reliable is autoupgrade.jar analyze mode?

It sounds like you hit one of those classic Oracle "gotchas" where the tool tells you everything is fine until the ...

Oracle

How to extend the /u01 filesystem on an Exadata

Marketers are very good at selling everyone on the fact that resources (CPU, disks, memory) are now infinite, which is ...

Oracle

Live Kernel Updates Without Downtime in New RHEL 8.1, 7.7 and 7.6 Release

Most often companies scheduling downtime for patching of the Linux kernel in a production environment follow strict ...

Oracle

How to Prevent Linux 7 Housekeeping from Breaking Oracle

Linux 7 introduced multiple changes and enhancements to the kernel. Among them was automated housekeeping for temporary ...

Oracle

How To Resolve Database Software Install To Incorrect Location

We were recently required to install database software to /u01/app/oracle/12.2/db1. However, when using GUI to install ...

Oracle

How to fix EBS weblogic admin console when not accessible after CPU patching

Background With the recent CPU patching on Oracle E-Business suite R12.2, many customers faced issues with accessible ...

Oracle

How to manage Oracle Flashback Log size

Here we will learn how to manage the size of flashback logs generated in our environment. This is useful especially ...

Oracle

Do Not Mix Different Patch Types

I was preparing to apply a July 2019 path for a single instance database without ASM. Here are the available patch ...

Oracle

Exadata: 7 Useful Commands to check Port/Sensor Alarms

Some days ago I was checking for the alarm below, with a very generic message: Message=The aggregate sensor ...

Oracle

How to Find Cluster Resources Where Target!=State

Identifying resource state mismatches DBA typically checks cluster resources as part of patching efforts. However, when ...

Oracle

How to fix InfiniBand Error: Cable is present on Port "X" but it is polling for peer port

Facing an InfiniBand error? Let me guess: Ports 03, 05, 06, 08, 09 and 12 are alerting? You have a Quarter Rack? Have ...

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Oracle E-Business Suite and 12cR1 database in Extended support - What to do?

Troubleshooting Oracle Cloud Infrastructure Automatic Backups

Why It's Good Practice to Run Datapatch -prereq after Creating Database

Using MDBUtil To Create Grid Infrastructure Management Repository Database

OEM 13c Monitoring Features: Part 1

Why you should not uninstall Database Vault from a CDB

Exadata Smart Scan: A Quick Overview

How to Find Clusterware Configuration Details Using srvctl

How to use createGoldImage For Cloning in 19c

How to Reduce Exadata Core Count

How to delete an RAC Database Using DBCA silent mode

How to work around OMS 12.1.0.3 error: Metric evaluation error start – Get dynamic property error

Minimal Networking Knowledge Recommended for DBAs

How To Fix ASM Disk Header Status from "FORMER" To "MEMBER"

How To Downgrade Grid 19c Clusterware to 12.1

Issues and workarounds for Exadata Patching

How To Reclaim ASM Disks

Custom fix required when using latest JDK with Oracle E-Business Suite R12.1.3

How to fix Error: OMSPatcher finds that previous patching session is not yet completed

How reliable is autoupgrade.jar analyze mode?

How to extend the /u01 filesystem on an Exadata

Live Kernel Updates Without Downtime in New RHEL 8.1, 7.7 and 7.6 Release

How to Prevent Linux 7 Housekeeping from Breaking Oracle

How To Resolve Database Software Install To Incorrect Location

How to fix EBS weblogic admin console when not accessible after CPU patching

How to manage Oracle Flashback Log size

Do Not Mix Different Patch Types

Exadata: 7 Useful Commands to check Port/Sensor Alarms

How to Find Cluster Resources Where Target!=State

How to fix InfiniBand Error: Cable is present on Port "X" but it is polling for peer port

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