Virtualbox: How to use shared folders (aka gemeinsame Ordner)

If you want to use a directory inside a virtualbox vm without copying all files, you can use the shared folders.
Just choose a folder to share:

Then inside the vm type:
[root@localhost oracle]# mount -t vboxsf 12c /mnt
and that's it:
[root@localhost oracle]# df -h |grep 12c
12c                  180G    129G   52G   72% /mnt
or
[root@localhost oracle]# mount | grep 12c
12c on /mnt type vboxsf (rw,nodev,relatime)

When you are done just unmount the folder with
umount /mnt

Customizing a CoreOS image/iso: Ignition

After the first steps with coreos (virtualbox installation) and a successful ssh login, it is clear, that the coreos image has to be customized. If not, every reboot will clean up every configuration provided after reboot.

CoreOS provides a coreos-install script to do this.
coreos-install -help
Usage: ./coreos-install [-C channel] -d /dev/device
Options:
    -d DEVICE   Install Container Linux to the given device.
    -V VERSION  Version to install (e.g. current) (more...)

CoreOS: structure of the ISO image

After some first steps with CoreOS ("First step to micorservices: CoreOS on virtualbox") my problem is, how to customize CoreOS. After each reboot all changes are gone (tmpfs / squashfs).

There are some tutorials which recommend the usage of etcd, but even this has to be configured into the CoreOS linux...

The first idea: what about customizing the ISO image...

mount -o loop coreos_production_iso_image.iso /media/iso
Inside this:
$ ls
coreos  isolinux  syslinux
(more...)

Linux Containers – Container LInux: Core OS – a minimal linux? A quick overview: diskspace, mounts, commands, kernel, …

Virtualization techniques can be grouped into two categories
  1. os virtualization like VMware, Virtualbox, etc.
  2. container virtualization like Docker, etc.

Everybody is familiar with the first category. Creation of virtual machines is well known and most of us have created already tens or hundreds of such machines. (and deleted and lost them after some weeks). One of the benefits is, that it is easy to run additional machines on our laptops / workstations.
The second category (more...)

First step to micorservices: CoreOS on virtualbox (1)

I read some articles about microservice architecture and about kubernetes / apache mesos.
My conclusion from these articles is, that lightweigt servers are a key point to this microservice architecture. Just to learn how tiny such a OS could be, i will try to install CoreOS inside virtualbox.

There is an easy way to get CoreOS running ("booting CoreOS container linux from ISO"), but there some limitations stated on the CoreOS website:

  1. There (more...)

PeopleSoft and Docker’s value proposition

If you haven't heard yet about Docker and/or container technologies, you will soon do. Docker has made one of the biggest impacts in the IT industry in 2014. Since the release of its 1.0 version on past June, it has captured the attention of many big IT vendors, including Google, Microsoft and Amazon. As far as I'm aware, Oracle has not announced any initiative with Docker, except for the Oracle Linux container. Still, Docker (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: http://event.on24.com/r.htm?e=725350&s=1&k=1512E332202610FE9518AB8B01354C6A&partnerref=Francisco 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...)

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...)

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,

Playing with VirtualBox, Oracle 12c (12.1.0.1) 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

Build an 11gR2 RAC cluster in VirtualBox in 1 Hour using OVM templates

[I originally posted this over at the Pythian blog. If you're not following it, you should! Way more content, by far smarter people than lil ol' me.]

After reviewing my blog post about running EBS OVM templates in VirtualBox, two of my teammates suggested that I work on something with potentially broader appeal. Their basic message was, "This is really cool for us EBS nerds, but what about the Core DBAs?"

So how does "11gR2 RAC in an hour" sound? :-) In this post, I'll demonstrate how to deploy the pre-built Oracle VM templates to create a two-node (more...)

Build an E-Business Suite 12.1.3 sandbox in VirtualBox with one hour of work

[I originally posted this over at the Pythian blog. If you're not following it, you should! Way more content, by far smarter people than lil ol' me.]

Self-directed learning about a product as complex as Oracle E-Business Suite can be challenging. Oracle helpfully provides a pre-built environment (called 'Vision') for training purposes. Configuring a viable training or "sandbox" environment on a workstation can be pretty daunting, however, considering:

  1. The memory and storage resources required to run a "small" Vision instance
  2. The need to install and configure the OS and a list of pre-requisite patches and packages
  3. Learning about the (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, (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...)

Upgrading Oracle VM 3.0.3 to latest patchset

Recently I had to upgrade an older version of Oracle VM 3.0 to the latest patch version to resolve some bugs in the initial releases of OVM 3.0. Below are the steps that I followed to perform the upgrade.


1. Download the patchset from Oracle Support (http://support.oracle.com)
2. Unzip the patch to the OVM Manager /tmp directory
3. backup config files for OVM Manager:

. Back up/copy the Oracle VM Manager configuration (more...)

Uploading templates for OVM 3.0.3 to ftp server

Dear readers,

Its been a while since I've blogged due to many busy demands between work, finishing a new Oracle book and scuba diving. Recently, I setup a new Oracle VM 3.0.3 environment and the interface and tools have changed quite a bit since I last worked with OVM 2.2 version. One challenge is that now in OVM 3.0.3 you have to upload the VM templates via a web http or ftp server and no longer can you copy the Oracle VM templates over to the /OVS/seed_pool directory on the OVM server. In my case, (more...)