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Troubleshooting an enterprise user security database login and sudden ORA-12154

I encountered a new problem last week while trying to log in into LDAP-enabled Oracle Database (Enterprise User ...

Oracle

Using rsync to Copy GoldenGate Trails from DBFS to ACFS

It sounds like you're putting ACFS through its paces before making the big jump. Testing for IO sustainability is a ...

Oracle

How to Upgrade Grid Infrastructure to 18c

Now that Oracle Grid Infrastructure (GI) 19c has been released, it is time to upgrade your GI to 18c! I am presenting ...

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

Troubleshooting failed database startup after GRID Out Of Place (OOP) rollback

Successful GRID Out-of-Place (OOP) Patching to 18.6 GRID Out Of Place (OOP) patching completed successfully for ...

Oracle

A script for Relocating and Restoring Database Services

Due to complex requirements for service relocate and restore as part of patching, I decided to script the process.

Oracle

Running new Oracle DBSAT version 2.1.0 against Autonomous Database

Recently Oracle released the newest version of the "Database Security Assessment Tool" (DBSAT 2.1.0). This version is ...

Oracle

How to a recreate disk group used by CRS

I will go through detailed steps here on how to recreate a disk group used by CRS. Some things to bear in mind: - I ...

Oracle

How To Resize Oracle ACFS Volume

There may be many reasons as to why Oracle ACFS volume would need to be resized. Current Filesystem for ACFS is 299G.

Oracle

Troubleshooting a failure when upgrading to Oracle 18c

Upgrading Oracle Grid Infrastructure is often a smooth ride until that final configuration step hits a wall. When ...

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 troubleshoot a failure to mount DBFS

When attempting to shut down Oracle Clusterware, you might encounter the frustrating CRS-2675: Stop of 'ora.crsd' on ...

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 configure X11 for Vagrant Box

"Good artists copy, great artists steal" - Pablo Picasso

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

How AEG Presents uses data to boost client engagement for Coachella and other events

Context AEG Presents is a seasoned veteran when it comes to staging high-profile concerts with first-class artists and ...

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

Exadata: How to manage OS dependencies when upgrading to 19c

Upgrading to Exadata 19c is a significant milestone, mostly because it marks the transition from Oracle Linux 6 to ...

Oracle

How to run DBSAT against Oracle RDS database

The scope of this article is to show how to run DBSAT (Oracle Database Security Assessment Tool) against an Amazon RDS ...

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 Delete MGMTDB and MGMTLSNR Using emcli

It sounds like you’ve run into one of those classic Oracle "features" where the system is a little too helpful for its ...

Oracle

How to mine an RMAN Log

I recently performed a Proof of Concept (POC) to compare and contrast Oracle Recovery Manager (RMAN) backup performance ...

Oracle

How to use mount-dbfs.sh to resolve "Device or resource busy"

It’s always a bit of a gamble when you start playing "Process Assassin" with fuser -mv. One minute you’re trying to ...

Oracle

How to run DBSAT on RAC Instances

The scope of this article is to provide a brief summary of how to run Oracle Database Security Assessment Tool (DBSAT) ...

Oracle

How to install 18c Grid Infrastructure in Silent Mode on Linux 7

This blog post will show you how to install 18c Grid and upgrade to 18.6.0.0. 1. Download the 18c binairy and Apr, 2019 ...

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 solve an SSIS Deployment Error

Problem: You are deploying a SQL Server Integration Services Package to the SSIS Catalog and it keeps on failing with ...

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 ...

Oracle

How to create an Oracle Database Cloud service (OCI) using the command line

The Oracle Cloud Infrastructure, also known as the second generation cloud, offers an integrated command line utility ...

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Troubleshooting an enterprise user security database login and sudden ORA-12154

Using rsync to Copy GoldenGate Trails from DBFS to ACFS

How to Upgrade Grid Infrastructure to 18c

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

Troubleshooting failed database startup after GRID Out Of Place (OOP) rollback

A script for Relocating and Restoring Database Services

Running new Oracle DBSAT version 2.1.0 against Autonomous Database

How to a recreate disk group used by CRS

How To Resize Oracle ACFS Volume

Troubleshooting a failure when upgrading to Oracle 18c

How to delete an RAC Database Using DBCA silent mode

How to troubleshoot a failure to mount DBFS

Minimal Networking Knowledge Recommended for DBAs

How to configure X11 for Vagrant Box

How To Reclaim ASM Disks

How AEG Presents uses data to boost client engagement for Coachella and other events

How to extend the /u01 filesystem on an Exadata

Exadata: How to manage OS dependencies when upgrading to 19c

How to run DBSAT against Oracle RDS database

How to Prevent Linux 7 Housekeeping from Breaking Oracle

How To Delete MGMTDB and MGMTLSNR Using emcli

How to mine an RMAN Log

How to use mount-dbfs.sh to resolve "Device or resource busy"

How to run DBSAT on RAC Instances

How to install 18c Grid Infrastructure in Silent Mode on Linux 7

Exadata: 7 Useful Commands to check Port/Sensor Alarms

How to solve an SSIS Deployment Error

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

How to create an Oracle Database Cloud service (OCI) using the command line

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