Mounting VMWare-Volumes/Disks with Debian

Some time ago a vmware server did not recognize any more a data disk. This disk was formatted with vmfs v3 (enter the vmware server via ssh and type mount..). First thing i did, was creating an image of this disk, to play around without any danger of data loss.

There is a good article how to mount vmfs, but on debian i had to install the package otherosfs.

After i installed this (more...)

Join me at the next OTN Virtual Developer Day

    Hi All, On February 4, 2014 at 9:30 am PT I will be talking on the next OTN Virtual Developer Day about Oracle VM and Oracle Database. Come and discover the answers for the following questions: Does an Oracle Database perform well on a virtualized environment? What virtualization technology is more stable and […]

Problems when doing a V2V or P2V of a windows server to Oracle VM

Some time ago, I received the request to migrate some Windows 2008 Servers to my Oracle VM farm and after complete the P2V migration the newly create VM would not start. It would crash on boot with blue screen and error: STOP: 0x0000007B (0xXXXXXXXX,0xXXXXXXXX,0×00000000,0×00000000) This issue is related to the storage drivers needed for the guest […]

Joint Webinar with Oracle – Top 5 Key Reasons Why Oracle VM is Best for Oracle Database

Top 5 Key Reasons Why Oracle VM is Best for Oracle Database When: Tuesday December 17th , 10am PST Register Here: Oracle VM application-driven architecture is designed for rapid deployment and ease of lifecycle management providing IT a highly scalable and cost effective virtualization solution for Oracle (more...)

OSP #2c: Build a Standard Platform from the Bottom-Up

This is the fourth of twelve articles in a series called Operationally Scalable Practices. The first article gives an introduction and the second article contains a general overview. In short, this series suggests a comprehensive and cogent blueprint to best position organizations and DBAs for growth.

This article – building (more...)

My Presentation on Oracle Solaris Zones Capacity Management

So one more successful annual conference of All India Oracle Users Group (AIOUG) happened on November 9th and 10th at Hyderabad, India.

Earlier I used to attend Oracle database sessions at AIOUG but this time AIOUG board had done a remarkable job by extending the coverage to Solaris topics. Obviously as (more...)

Virtualization on Exadata?

A while back, I noticed this session in the Open World 2013 content catalog.  I didn't think much of it at the time, other than that it had a catchy title.  The other day, I downloaded the latest Exadata deployment utility via the OneCommand tool.  I noticed something a little (more...)

Why use OVM for Oracle Databases

Some time ago I made a benchmark exercise to compare the performance of an Oracle Database running in a bare metal environment versus a virtualized environment to clear some of the main questions our team and clients in Revera have, such as:  Does an Oracle Database performs well on a (more...)

Playing with VirtualBox, Oracle 12c ( and OEL 6.4 – Part 2

We will complete our lab by installing the Oracle Database software, create a Pluggable database and take a look in the Oracle Enterprise Manager Database Express.

The steps to install and create an Oracle Database 12c are:

1 – Go to the database directory created when unzipped the 2 Oracle (more...)

Using Virtualbox images with Hyper-V

In 2008 i wrote about using vmware images with virtualbox. To migrate a host from virutalbox to Hyper-V, you have to do nearly the same, but you have to convert the hdd:
C:\Users\schroff>"\Program Files\Oracle\VirtualBox\VBoxManage.exe" clonehd
"c:\Users\schroff\VirtualBox VMs\Debian64-DS\Debian64-DS. (more...)

Hyper-V: Compile Linux Kernel with Microsoft device drivers

After knowing, that running a linux inside Hyper-V is only working with the "legacy" network adapter (look here), i was trying to build a kernel with the drivers (Microsoft has added the drivers into the Linux kernel versions >2.6.32).
There is one nice tutorial out there:

Hyper-V: Installing a debian linux in a virtual machine – trouble with the (non legacy) network adapter

First try with a virtualization solution like Hyper-V is to install a guest. So let's try debian linux.
The installer runs through this points:
  1. Name & path of the virtual machine
  2. RAM
  3. Network (how to configure a virtual switch with internet connectivity or how to configure internet connectivity with (more...)

Hyper-V: Howto configure NAT for virtual machines

In my last posting i explained how to configure a vEthernet adapter to get connectivity to the internet. But there was one "problem": You had to provide one seperate IP for each virtual host, you want to connect to the internet.
But there is a solution (NAT) for this problem (more...)

Hyper-V on Windows 8: External virtual switches do not work – Howto connect a virtual host to the internet

First thing you have to do after enabling Hyper-V is to set up your network for your virtual machines. This is not so easy, because some things do not work...
So let's start: Open the Virtual Switch Manager
There you have three options:

  1. external (connectivity to the internet)
  2. internal (connectivity (more...)

Windows 8: Enabling Microsofts Hyper-V virtualization platform

If you are running a Microsoft Windows 8 Professional, you can use Microsofts virtualization platform Hyper-V. To get the management window you have to open
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Hyper-V Management Tools
and double click the icon:
If this icon (or the path) is not there, you have to enable Hyper-V:
Open your (more...)

Oracle Throws in the Towel on VMware Licensing – Reprise

Given the incredible number of comments I received on my last blog post, and the content of those comments, it is very obvious that folks are extremely confused by what I meant by that post, as well as the comments by Mr. Garsthagen (Oracle Director Level Employee), referenced in that post.

The confusion is typified by the following comment, the most recent I have received:

Oracle does not recognize either (Vmware/DRS Affinity) as a hard partition

First, to be completely clear, I have never stated, nor do I believe, that VMware (or any other software hypervisor for that matter) (more...)

Oracle Throws in the Towel on VMware Licensing

As all of my readers know, I have been a strong proponent of VMware virtualization of Oracle Database servers for license cost savings purposes. Predictably, Oracle has pushed back on this issue in the past. Well, they have now thrown in the towel.

In an online video, Richard Garsthagen, Director of Cloud Business Development EMEA for Oracle, has stated publicly that VMware host affinity rules (when combined with vMotion logging) work just fine, thank you very much, for purposes of establishing where Oracle software is "installed and/or running" for purposes of the Oracle Software License Agreement (OSLA).

Previously, (more...)

How I run Oracle VM 2.2 guests with custom network configuration

Recently I was given three virtual machines running Oracle Enterprise Linux 5 and Oracle 11gR2 RAC on Oracle VM 2.2.1, copied straight from /OVS/running_pool/. I had to get these machines up and running at my lab environment, but I found hard to setup the network. I’ve spent half day in debugging without success, but finally found a workaround, which I’ll explain here.

Just a little technical notes – Oracle VM (xen) has three main setup configurations within /etc/xen/xend-config.sxp:

Bridge Networking – this configuration is configured by default and it’s simplest to configure. Using this type of networking (more...)

VMware: Maritz out, Gelsinger in. What does it mean for Oracle?

As many of you have heard by now, Paul Mauritz is out as CEO of VMware, and Pat Gelsinger (formerly COO of EMC, reporting directly to Joe Tucci) is replacing him.

The relevant question for those of us who care passionately about Oracle virtualization using VMware vSphere is:

What does this mean for VMware's BCA (Business Critical Applications: stuff like Oracle) strategy (which under Maritz was somewhat lacking)?

In my view, this is very, very good news indeed. The reason is simple: Paul Maritz was former Microsoft, and thus very Microsoft-centric. Under Maritz, VMware very successfully penetrated the Microsoft (more...)

Please Vote for My Session at VMworld 2012

I have once again proposed a session at VMworld 2012. This session is titled as follows:

Near Zero Downtime Migration of Oracle Database from Legacy RISC-based UNIX to x86-64 / Linux on VMware vSphere

The reason I believe this session is so important is simple: Every Oracle customer and his dog is desperately trying to get off of expensive, slow, proprietary RISC-based UNIX and onto the x86 environment. The reason for this desperation is simple: Cost. These environments are becoming hideously expensive platforms on which to run Oracle. Huge core counts. And performance is frequently terrible.

For example, EMC IT (more...)