Complément : Analyse des performances sur du long terme

New Tips and Techniques page

In case you haven’t noticed it – and chances are you haven’t noticed because I just created it! :) – I’ve added a new page called “Tips and Techniques” to the website. It’s where I keep a random collection of odd items I’ve come across that might be of interest yet don’t deserve a full blog post. It’s sort of like a FAQ list, but not necessarily with the “F”. :)

You can reach it either via (more...)

Why am I seeing “Result: Failed. Insufficient resource available” messages?

This is an interesting point that came up recently, where someone had a DBaaS environment running on an Exadata system for a couple of months, with no issues.  It has recently started to return errors on the Database Cloud Self Service portal in the “Placement Algorithm” region:

Constraint : Number Of Databases
Current Resource Usage: 18
Total Resource Available: 10
Maximum Limit Defined: 10
Requested Value: 1
Total Resource that can be used: 10
(more...)

Cloud Control authorization with Active Directory

About 2 months ago I wrote an article about setting up user authentication in Cloud control, based on their account in the Active Directory. As promised, here is the second part describing Cloud Control authorization with Active Directory.

A small recap about why this could be useful:

If your company is preferring Microsoft Active Directory (further named AD) as a source of truth (or at least you´re trying to) you should be using the AD (more...)

Complément : Construire un catalogue de services

Metering and Chargeback

In the past few posts, I’ve covered setting up PDBaaS, using the Self Service portal with PDBaaS, setting up Schema as a Service, and using the Self Service Portal with Schema as a Service, all of these using Enterprise Manager Cloud Control 12c release 12.1.0.4. Now I want to move on to an area where […]

Using ASH Analytics to View Blocked Sessions

When concurrency is the crippling factor in a database performance issue, often I’m told that viewing blocked sessions in Enterprise Manager is difficult.  The query behind, along with flash image generation in any Enterprise Manager can take considerable time to render and no matter how valuable the view is, the wait is something DBAs just can’t hold out for when needing the answer now.

Blocking Sessions View in OEM

If you’re wondering which feature (more...)

Using the Self Service Portal with Schema as a Service in EM 12.1.0.4

In a previous blog post, I covered setting up Schema as a Service for schema level consolidation. In this post I’m going to cover how to use the Self Service Portal with Schema as a Service in EM 12.1.0.4. Just as it was in my posting on using the Self Service Portal with DBaaS, our […]

Complément : Réduction du temps de patching OMS


Depuis quelques semaines, la nouvelle version d' Oracle Enterprise Manager (12.1.0.4) ainsi que les bundle patches pour OMS sont disponibles.
Si vous prévoyez de d'appliquer ces patches et que la problématique d'arrêt de service vous concerne, il est désormais possible de réduire le temps d'arrêt.
Le document intitulé "Reducing Downtime While Patching Multi-OMS Environments" contient les instructions et les étapes pour cela.

Schema Consolidation – Setup

Schema as a Service provides database consolidation by allowing administrators to host multiple application schemas within a single database. This offers Database as a Service to possibly hundreds of application users without creating database sprawl. Users can perform day-to-day actions like provisioning, monitoring, and backup, all from a single Self Service console. Schema as a […]

Complément: Mettre en place AWR Warehouse

Le patch permettant la mise en place d'AWR Warehouse dans Enterprise Manager 12.1.0.4 est disponible ( cf note 1907335.1) !

Pour activer AWR Warehouse, l'administrateur d'Enterprise Manager doit :
  • Créer une instance de base de données Oracle Database 12.1.0.2 (recommandé) ou 11.2.0.4+ pour le référentiel AWR
  • Découvrir l'instance dans EM12c
  • Appliquer le patch sur l'OMS (cela permet d'avoir AWR Warehouse dans le menu)
  • Appliquer le (more...)

Using the Self Service Portal with PDBaaS in EM 12.1.0.4

Following on from my earlier blog post on setting up Pluggable Database as a Service (PDBaaS) in EM 12.1.0.4, this post will cover how you actually use the Self Service Portal to create on demand an empty pluggable database within the container database I created for that earlier post. You’ll no doubt be pleased to […]

Complément : EM12c pour mettre en place une solution MWaaS

Database Consolidation (PDBaaS) – Setup

Introduction This is an almighty long post, because it walks you step-by-step through the setup of Pluggable Database as a Service (PDBaaS) in Enterprise Manager 12.1.0.4 so there are a lot of screenshots. The actual setup doesn’t take long at all, so don’t be put off by the length of the post. :) Just as […]

Complément : AWR Warehouse (ODTUG Webinar)

AWR Warehouse Webinar from ODTUG

The webinar is over, but you haven’t missed out on everything I presented on the console feature, under the hood and behind the scenes!

You can access the slides from today’s presentation, as I’ve uploaded them to slideshare and the scripts are easy to locate on the scripts page here on DBAKevlar.

Thanks to everyone who attended and a big thanks to GP for doing the introduction and ODTUG for hosting us! :)



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Delivering DBaaS using EM12c

One of the jobs I’m currently working on is writing a technical whitepaper on Delivering DBaaS using EM12c. I realized as I was starting it that a technical whitepaper really isn’t the place for a step-by-step how-to sort of description, so I thought I’d better blog about it instead. Actually, I’m going to write a […]

Tuning EM12c, the OMS, Part II

We went over a few of the Java “tuning” options last time, so let’s go onto the OMS tier for this post.

Location, Location, Location

High latency issues between the OMS(Service) and the OMR, (Repository) when separated by geographical location is common.  It’s important when designing the Enterprise Manager environment that you keep your OMS hosts close to the repository hosts geo-locationally.  Your agents can be global, with minor network considerations, but the (more...)

Tuning EM12c- Onto the Next Tier, JAVA

I’ve already talked about the recommendations we make for properly sizing an Enterprise Manager 12c and many already know about tuning a database, but let’s look at the tuning that may be a bit foreign to DBAs.  We’ll start with Java.

We all know that it’s part of the EM12c architecture, but we often don’t realize that it requires attention to assist in Enterprise Manager running efficiently.

JAVA Updates

The Java component of the (more...)

Blog : Oracle DBA Blog 2.0

Un blog intéressant à consulter : Oracle DBA Blog 2.0 

On y trouve des articles intéressants; par exemple sur Enterprise Manager & CMDB : http://dbaharrison.blogspot.de/2014/05/on-using-cloud-control-as-cmdb.html