Database Administration & Monitoring

ODA X6 database classes and shapes

By Franck Pachot . On the Oracle Database Appliance, like on the Oracle public Cloud, you define the CPU capacity with ‘shapes’. On the latest ODA, the X6, we have a new interface to provision a database. Let’s look(…)

ODA X6 command line and Web Console

By Franck Pachot . The ODA X6 comes with a new command line (odacli) which replaces oakcli, and with a small web console which can display information about the appliance, the databases and the provisioning jobs. It also has the(…)

AUDIT_SYS_OPERATIONS and top-level operation

By Franck Pachot . SYSDBA is powerful. You should use it only when you need to. And you should audit what is done when connected SYSDBA. This is achieved by AUDIT_SYS_OPERATION. But do you have an idea how much audit(…)

Neue Datenbank Konsole Befehle (DBCC) CLONEDATABASE

Sie haben es vielleicht noch nicht gesehen, aber mit den Service Pack 2 von SQL Server 2014 gibt es einen neuen DBCC Befehl: CLONEDATABASE. „DBCC CLONEDATABASE sollte Kopien eines Schemas und den Statistiken einer Produktionsdatenbank erstellen, um bei Leistungsproblemen Abfragen(…)

Generate Azure VM with Resource Manager deployment in PowerShell

Recently, there is a new way to manage the Azure infrastructure with Resource Manager. It brings many advantages regarding the classic deployment. The differences between these two deployments will not be covered in this blog because it is(…)

Unplugged pluggable databases

By Franck Pachot . When Oracle Multitenant came out in 12c, with pluggable databases, it was easy to draw them as USB sticks that you can plug and unplug to/from your Container Database (CDB). I don't like this because it(…)

Windows: Sauvegarde RMAN sur un disque partagé

Dans ce blog, je vais vous expliquer comment exporter les backups RMAN sur un « share disk » appartenant à un Domaine. Assurer la sécurité des données est l’une des tâches principales de l’administrateur : La mise en œuvre d’une protection des fichiers sensibles(…)

Multitenant internals: object links on fixed tables

By Franck Pachot . The previous post partly answered to the original question (why an object link to V$SESSION is refreshed only every 30 seconds): recursive queries on shared=object views. Now let's see what is different(…)

Multitenant internals: how object links are parsed/executed

By Franck Pachot . I had a comment on object links internals when creating a sharing=object view on GV$SESSION. Before posting about this specific case, I realized that I've never explained how a query on(…)

How to do a Filesystem Resize (ext3/ext4) on Redhat running on VMware

By William Sescu A filesystem resize can be done in several ways, online, offline, with LVM2 or without LVM2.  However, this blog will describe how to do an online resize of ext3/ext4 filesystems where a virtual disk (vmdk) is online(…)