Tag Archives: RAC

Database Shutdown With crsctl

I noticed something for the first time tonight when I was playing around in the Enkitec lab – something that I have been doing wrong for a while.  When working in the lab, I often rely on the crsctl command to shut down the entire cluster stack for me.  It’s really easy to use “crsctl […]

Upgrading the Oracle Database Appliance to Version 2.3.0.0.0

As you may have guessed, applying patches on the Oracle Database Appliance can be a little bit different from your standard Oracle environment.  Oracle releases a software version that covers all aspects of the ODA – firmware, operating system, and Oracle software stack (grid infrastructure, rdbms).  Versions are numbered like this (image courtesy MOS note […]

Voting Disk Redundancy in ASM

A recent discussion thread on the OTN Exadata forum made me want to test a feature of 11.2 RAC – voting disk redundancy.  There was one section of the Clusterware Adminsitration and Deployment Guide (http://goo.gl/eMrQM) that made me want to test it out to see how well it worked: If voting disks are stored on […]

Exadata Interconnect Addressing Tips

Having done a handful of Exadata implementations, there’s always been one piece of the configuration that’s bothered me more than anything else.  In the process of ordering an Exadata, Oracle sends the customer a “Configuration Worksheet” that asks questions about how the system should be configured.  It’s standard stuff:  hostnames, DNS and NTP servers, UID […]