Monday Apr 14, 2014

Which Type of Virtualization Should I Use?

I routinely ask techies which type of virtualization they'd recommend for which type of job. I seldom get an answer as crystal clear as Brian Bream's.

Video Interview: Which Type of Virtualization Should I Use?

with Brian Bream, CTO Collier IT

Oracle's portfolio of virtualization technologies includes Oracle VM Server for x86, Oracle VM Server for SPARC (previously known as LDOMS), and Oracle Solaris Zones, among others. Brian Bream provides a crystal clear technical overview of their differences and examples of what you would use them to do to. After you listen to the recording, which is about 5 minutes long, you'll understand why Brian was selected Instructor of the Year for both Oracle University and Sun Microsystems University before that.

More Resources About Virtualization

Here's an 8-part series about Oracle virtualization products written by Detlef Drewanz and Lenz Grimmer that might also be helpful:

About the Photograph

Photograph of Vaillancourt Fountain in San Francisco taken by Rick Ramsey, April 2014.

- Rick

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Monday Jan 13, 2014

Lab - How to Deploy Oracle Software in Minutes Using Oracle VM Templates

In my first 12 years of school I had a natural ability in Math and Science, but had to work hard at English and History.

When I went to college, I didn't do well in Math and Science, so I transferred into Liberal Arts, where strangely enough, I did well. After all these years I just realized why. I never had to study for Math and Science. I just understood the material. If I did any homework, I did it during class. Which means I never listened to lectures. As a result, I never learned how to learn what I didn't know. So, when college presented me with more advanced topics that I couldn't just grok, I didn't know what to do. I fell behind. I assumed I wasn't any good. The opposite was true with Liberal Arts. Literature, History, Economics, it all confused me. So I listened in class. And I studied after class. SoI did well.

And that's why I'm not an engineer.

If you're a hands-on learner like me and Joel Schallhorn, the guy doing bicycle tricks in the picture, you'll appreciate our latest hands-on lab.

Lab: How to Deploy a Four-Node Oracle RAC 12c Cluster in Minutes, Using Oracle VM Templates

Hands-On Lab by Olivier Canonge with contributions from Christophe Pauliat, Simon Coter, Saar Maoz, Doan Nguyen, Ludovic Sorriaux, Cecile Naud, and Robbie De Meyer

This lab demonstrates how easy it is to deploy software environments with Oracle VM Templates. It uses a single-instance, Oracle Restart (Single-Instance High Availability [SIHA]), and Oracle Real Application Clusters (Oracle RAC) for Oracle Database as an example. During this lab, you are going to deploy a four-node Flex Cluster (three hubs and one leaf) with a dedicated network for Oracle Flex ASM traffic.

See more of Joel Schallhorn on Instagram | Facebook | YouTube

- Rick

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Wednesday Jan 08, 2014

Hands-On Lab: How to Deploy and Manage a Private Cloud

Hands-On Lab: How to Deploy and Manage a Private Cloud

With Oracle VM and Oracle Enterprise Manager Cloud Control 12c

We just updated this lab to get it ready for OTN's next Virtual SA Day on January 28. You can run the lab anytime from your laptop, or you can attend our virtual event and run it with the help of a proctor. There will be several hundred sysadmins running the same lab at the same time, so you can discuss it with others via chat, and get help from our proctors. Details here.

Cloud Building with Oracle Solaris

Blog by OTN Garage

At the risk of raising PITA's ire, there's more than one way to skin a cat. This blog provides three resources to help you build a private cloud with Oracle Solaris: one training class and two tech articles.

photograph of clouds at sunset over Colorado snapped by Rick Ramsey with lousy iPhone camera

- Rick

Follow me on:
Blog | Facebook | Twitter | YouTube | The Great Peruvian Novel

Thursday Jan 02, 2014

About our Latest Lab: How to Migrate to Oracle Linux and Oracle VM





Step by Step Instructions for Migrating to Oracle Linux and Oracle VM

Red Hat Linux and VMWare are fine technologies. A great pairing. However, if you have business reasons for migrating to Oracle Linux and Oracle VM, such as having earlier access to the latest Linux innovations or taking advantage of more integrated virtualization, take a look at our latest lab. It provides the best step by step instructions we could come up with for carrying out that migration. You can also try it just to hone your migration skills. You never know when the boss is going to ask you whether you can handle a migration.





Here's a peek at the major tasks:

  1. Start the two servers (Oracle VM Server and Oracle VM Manager).
  2. Connect to Oracle VM Manager and become familiar with the product.
  3. Verify that the Oracle VM environment started correctly.
  4. Import an assembly that has Oracle Database on top and was exported from VMware.
  5. Create an Oracle VM Template based on the VMware assembly.
  6. Edit the Oracle VM Template that was created.
  7. Create a guest based on the Oracle VM Template that was created.
  8. Verify and then start the Oracle VM guest that was created.
  9. Manually modify the guest configuration and remove VMware tools.
  10. Switch from the Red Hat kernel to Oracle's Unbreakable Enterprise Kernel for free.
  11. Transform the guest into a usable Oracle VM Template ("gold image").

You can run the lab anytime you like on your laptop, or you can attend OTN's next Virtual SA Day, and run it with the help of a proctor. There will be several hundred sysadmins running the same lab at the same time, so you can discuss it with others via chat, and get help from our proctors. Details here.

photograph of a brewery in Ouray, Colorado, by Rick Ramsey

- Rick

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Thursday Nov 07, 2013

Oracle VM Deep Dives

"With IT staff now tasked to deliver on-demand services, datacenter virtualization requirements have gone beyond simple consolidation and cost reduction. Simply provisioning and delivering an operating environment falls short. IT organizations must rapidly deliver services, such as infrastructure-as-a-service (IaaS), platform-as-a-service (PaaS), and software-as-a-service (SaaS). Virtualization solutions need to be application-driven and enable:"
  • "Easier deployment and management of business critical applications"
  • "Rapid and automated provisioning of the entire application stack inside the virtual machine"
  • "Integrated management of the complete stack including the VM and the applications running inside the VM."
Application Driven Virtualization, an Oracle white paper

That was published in August of 2011. The new release of Oracle VM Server delivers significant virtual networking performance improvements, among other things. If you're not sure how virtual networks work or how to use them, these two articles by Greg King and friends might help.

Looking Under the Hood at Virtual Networking

by Greg King

Oracle VM Server for x86 lets you create logical networks out of physical Ethernet ports, bonded ports, VLAN segments, virtual MAC addresses (VNICs), and network channels. You can then assign channels (or "roles") to each logical network so that it handles the type of traffic you want it to.

Greg King explains how you go about doing this, and how Oracle VM Server for x86 implements the network infrastructure you configured. He also describes how the VM interacts with paravirtualized guest operating systems, hardware virtualized operating systems, and VLANs.

Finally, he provides an example that shows you how it all looks from the VM Manager view, the logical view, and the command line view of Oracle VM Server for x86.

Fundamental Concepts of VLAN Networks

by Greg King and Don Smerker

Oracle VM Server for x86 supports a wide range of options in network design, varying in complexity from a single network to configurations that include network bonds, VLANS, bridges, and multiple networks connecting the Oracle VM servers and guests. You can create separate networks to isolate traffic, or you can configure a single network for multiple roles. Network design depends on many factors, including the number and type of network interfaces, reliability and performance goals, the number of Oracle VM servers and guests, and the anticipated workload.

The Oracle VM Manager GUI presents four different ways to create an Oracle VM network:

  • Bonds and ports
  • VLANs
  • Both bond/ports and VLANS
  • A local network

This article focuses the second option, designing a complex Oracle VM network infrastructure using only VLANs, and it steps through the concepts needed to create a robust network infrastructure for your Oracle VM servers and guests.

More Resources

photo of K1200S copyright by Rick Ramsey

-Rick

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Thursday Jun 20, 2013

Hands-On Labs + Proctors = Genius

If Albert Einstein (image removed from blog) had attended OTN's virtual sysadmin days, he wouldn't have gotten so old figuring out his Theory of Relativity. Thanks to the relentless advance of technology, you can outsmart Einstein from the comfort of your own office. See below.

OTN Virtual Sysadmin Day - July 2013

It's free - register here

We held our first ever virtual sysadmin day for North America on January 15 of this year. Almost 600 sysadmins attended and over 80% of them remained online for the duration of the event. Which means they found it a good use of their time. If you missed that one, we're doing another one in July. Oddly enough, we chose the same date and time: the 15th at 9:00 am PT. Which is at exact same spot of the Earth's rotation, but on the other side of the sun and closer to our upcoming collision with Adromeda.

That galactic fender-bender aside, we have updated some of the hands-on labs about Oracle Solaris and Oracle Linux that we presented at our in-person sysadmin days, and we added three new labs about Oracle VM:

  • Deploying Infrastructure as a Service
  • How to Virtualize and Deploy Oracle Applications Using Oracle VM Templates
  • Creating an x86 Enterprise Cloud Infrastructure

Details here.

The event is free, but you do need to register. And there's a little homework involved. Nothing too complicated. We just expect you to have VirtualBox installed and the proper images already imported before we begin class. You'll see the instructions after you register.

When was that again?

Monday, July 15 at 9:00 am Pacific Time. (Time converter here.)

Register here

- Rick

Follow me on:
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Thursday Dec 20, 2012

Top 10 Articles of 2012 Include Oracle Solaris, Linux, Virtualization

source

That's a 72 Norton Commando fashioned into a cafe racer. Heavy.com named a newer version the #1 bike in the 2012 New York International Motorcycle Show. (I didn't like Heavy.com's picture, so I found a better one from the blog listed as source, above.)

OTN also has an annual top 10. In that post by Bob Rhubart, from OTN's Architect community, six of the top ten technical articles were about technologies of interest to system admins and developers.

Boo-yah!

#2 - How Dell Migrated from SUSE Linux to Oracle Linux

by Jon Senger, Aik Zu Shyong, and Suzanne Zorn

In June of 2010, Dell made the decision to migrate 1,700 systems from SUSE Linux to Oracle Linux, while leaving the hardware and application layers unchanged. The people who worked on the migration describe how Dell planned and implemented the migration, including key conversion issues and an overview of their transition process.

#4 - Getting Started with Oracle Unbreakable Enterprise Kernel Release 2

by Lenz Grimmer

How to update your Oracle Linux systems to the latest version of the Unbreakable Enterprise Kernel. Switching is easy—applications and the operating system remain unchanged. There is no need to perform a full re-install; only the relevant RPM packages are replaced.

#6 - How to Use Oracle VM VirtualBox Templates

by Yuli Vasiliev

This article explains how to use Oracle VM VirtualBox Templates in Oracle VM VirtualBox. It is similar to the article that explains how to prepare an Oracle VM environment to use Oracle VM Templates, but it describes how to download, install, and configure the templates within Oracle VM VirtualBox, instead of on bare metal.

#7 - How to Update Oracle Solaris 11 Systems From Oracle Support Repositories

by Glynn Foster

You may already know that you don't have to worry about manually tracking and validating patch dependencies when you update a version of Oracle Solaris 11. This makes updates much easier. Glynn Foster demonstrates how easy it is to update the OS from a support repository, and how to make sure everything went well.

#8 - Tips for Hardening an Oracle Linux Server

by Lenz Grimmer and James Morris

General strategies for hardening an Oracle Linux server. Oracle Linux comes "secure by default," but the actions you take when deploying the server can increase or decrease its security. How to minimize active services, lock down network services, and many other tips.

#9 - How to Create a Local Yum Repository for Oracle Linux

by Jared Greenwald

How to create a local yum repository for Oracle Linux, and configure up2date and yum to install and update packages from the repositories.

More About OTN's Technical Articles

See all system admin- and systems developer-related technical articles published on OTN here.

Interested in publishing an article on OTN? Click here or join the conversation on the OTN Garage Facebook page.

- Rick

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Tuesday Dec 18, 2012

Would You Swim Laps in Lake Baikal?

source

This is the lake where Yuli Vasiliev's countrymen swim laps.

Yuli is one of my favorite OTN writers not just because he really knows his stuff. Not just because his writing is clear and accurate. And not just because his English is better than the English of most native speakers. Yo, those are all good reasons. But it's the Lake Baikal thing.

Yuli recently wrote two wicked good how-to's about Oracle VM Templates. You should read them. You might gain a gram of Yuli's respect. Two grams, if you can head butt icebergs while you swim.

How to Use Oracle VM Templates

How to prepare an Oracle VM environment to use Oracle VM Templates, how to obtain a template, and how to deploy the template to your Oracle VM environment. Also how to create a virtual machine based on that template and how you can clone the template and change the clone's configuration.

How to Use Oracle VM VirtualBox Templates

How to use Oracle VM VirtualBox Templates in Oracle VM VirtualBox. Similar to the article above, but it describes how to download, install, and configure the templates within Oracle VM VirtualBox, instead of on bare metal.

Other OTN Technical Articles by Yuli Vasiliev

- Rick

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Thursday Nov 15, 2012

Looking Under the Hood of ...

copyright 2012 Rob Lang

Fair is fair. Our last post featured a conversation with the beautiful and talented Eva Mendez, so today we're featuring something for those of you who prefer the other gender of our fair species.

This dude has quite the hardware challenge ahead of him. He hasn't begun to find out what's really under that hood. Life is much easier for you and me, thanks to Greg King and Suzanne Zorn. They wrote a wicked cool article about Oracle VM Server for x86. Here's a little bit about it...

Looking Under the Hood of Networking in Oracle VM Server for x86

Oracle VM Server for x86 lets you create logical networks out of physical Ethernet ports, bonded ports, VLAN segments, virtual MAC addresses (VNICs), and network channels. You can then assign channels (or "roles") to each logical network so that it handles the type of traffic you want it to.

Greg King explains how you go about doing this, and how Oracle VM Server for x86 implements the network infrastructure you configured. He also describes how the VM interacts with paravirtualized guest operating systems, hardware virtualized operating systems, and VLANs.

Finally, he provides an example that shows you how it all looks from the VM Manager view, the logical view, and the command line view of Oracle VM Server for x86.

More Resources for Oracle VM Server for x86

If you liked Greg and Suzanne's paper, you can ...

Now, if we could just come up with a name for this awesome product that doesn't feel like I'm talking with a mouthful of marbles ... :-)

- Rick

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Kemer Thomson
and members of the OTN community

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