If using OVM virtual disks, you can easily improve your VM performance by replacing the virtual disks for raw LUN’s. It gives an extra boost in the performance specially if using the PVM mode. Note that here we are using OVM 3.1 and the guest VM is using OEL 5.7. On this scenario we will…
Category: General
OVM V2V – Converting ESX VM to OVM using ISO boot CD
In this blog post we will learn how to convert an ESX VM to OVM 3.1 (V2V) using an ISO boot CD. Basically all you need to do to achieve this objective is to follow the following steps: 1. Uninstall VMtools from VM 2. Attache OVS-3.1.1-524.iso to the VM. 3. Boot VM from CD 4….
What was new for Oracle Backup and Recovery at 11g?
Oracle 12c is around the corner and due that I have received many questions from fellow DBAs about what was new about Backup and Recovery at 11g I have decided to write a small white paper about it. Hope you will enjoy reading it as much I enjoyed writing it. What_is_new_at_11g Cheers, Francisco Munoz Alvarez
Back to Basics – USER MANAGED BACKUPs part 1
In the past few weeks I have received many questions regarding user managed backups, and due to this, I decided to write a little regarding this topic. User managed backups are basically all backups you can make without the use of RMAN and no automatic metadata record of the backup is generated anywhere in the…
Are you getting short of SCN?
Did you know that Oracle has determine that some software bugs (affecting databases between version 10.1.0.5 and 11.2.0.3) could cause the database to attempt to exceed the current maximum SCN value (The limit is currently 281 trillion) causing a transaction to be cancelled by the database, and the application would see an error message. But…
What is new in 12c for Backup and Recovery?
OOW has announced the new Oracle Database 12c, and this new version of the database product as expected has introduced many new features and enhancements for Backup and Recovery, on this post I will introduce you to some of them. Of course, I cannot start talking about 12c without talk first about a revolutionary whole…
DB Control/DB Console (OEM) Changing Hostname or IP Address
I just got a client that changed his server hostname and discovered that after this change he was unable to use the DB Control. To solve this problem you will just need to follow these simple steps: 1) Set $ORACLE_HOSTNAME to the old hostname: [oracle]$ export ORACLE_HOSTNAME=oc-oracle-prod.com 2) De-configure the old DB Console by running…
Playing with Oracle VirtualBox : How to add a new Disk
In this small Tutorial we will learn how to add a new disk to our Virtual Machine created in our previous tutorial. Add a new disk to the virtual machine is very easy, just follow the tasks bellow: First, with your virtual machine off click on Settings, than go to Storage , than you will…
Playing with Oracle 11gR2, OEL 5.6 and VirtualBox 4.0.2 (Final Part)
The idea of this tutorial is to show you how you can create an Oracle Database 11gR2 using Oracle VirtualBox and OEL. This installation should never be used for Production or Development purposes. This installation was created for educational purpose only, and is extremely helpful to learn and understand how Oracle works if you do…
Playing with Oracle 11gR2, OEL 5.6 and VirtualBox 4.0.2 (4th Part)
Project Name 11gR2/2011 Author Francisco Munoz Alvarez Software Used Oracle Enterprise Linux 5.6 Oracle VirtualBox 4.0.2 Oracle 11.2.0.2 Database and Infrastructure Software Date 02/02/2011 The idea of this tutorial is to show you how you can create an Oracle Database 11gR2 using Oracle VirtualBox and OEL. This installation should never be used for Production or…