Thursday Jan 21, 2016

Training Thursdays: Get Trained on Docker and Oracle Linux

Docker is an open platform management tool for Linux Containers. It provides a means for developers and system administrators to build and package applications into lightweight containers. The container is independent from the host operating system and kernel version. As a result, you can run the same application, unchanged, on laptops, data center virtual machines, and any cloud. You can transfer this container to another machine that runs Docker and run the application without any compatibility issues. The following lists additional advantages of running applications within Docker containers:

  • Docker images contain only the content needed to run an application so they are smaller than virtual machines, which require the entire operating system.
  • A Docker container runs faster than an application that includes the overhead of an entire virtual machine.
  • A Docker container includes its own network interfaces, file system, and memory, which allows the application running in the container to be isolated and secured from other processes on the host computer.

You can learn to use Docker with Oracle Linux, as well as learn about many other topics, by taking the Oracle Linux 7: Advanced Administration course. You can take this course as a:

  • Live Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events on the schedule to suit different timezones. Events on the schedule include 25 and 31 January, 8 February, 13 March, 24 April, and 17 July 2016.
  • In-Class Event: Travel to an education center to take a class. Below is a selection of the in-class events already on the schedule.

 Location  Date  Delivery Language
London, England
18 April 2016 English
Paris, France
22 February 2016 French
Munich, Germany
15 February 2016 German
Kuala Lumpur, Malaysia
25 April 2016 English
Makati City, Philippines
22 February 2016 English
Singapore 1 February 2016 English
Madrid, Spain 22 February 2016 Spanish
VA, Reston, United States 28 March 2016 English
CA, Belmont, United States 9 May 2016 English
To register for an event or learn more about the Oracle Linux curriculum, go to http://oracle.com/education/linux.

Friday Jan 08, 2016

Announcing the general availability of Unbreakable Enterprise Kernel Release 4

The Oracle Linux team is pleased to announce the general availability of the Unbreakable Enterprise Kernel (UEK) Release 4 for Oracle Linux 6 and Oracle Linux 7.  This release, based on the 4.1 mainline kernel, delivers many important new features and enhancements engineered for modern cloud infrastructure.  

  • Significant performance improvements through enhancements to features like automatic NUMA balancing and CPU schedulers, and the introduction of new features like zswap, zram, the LZ4 compression algorithm, network batch transmissions and low-latency network polling.
  • More options for boosting the security of systems and the applications they host. UEK Release 4 now includes kernel address space randomization, a new random number system call and updates in key areas like SELinux, nftables, SHA256 and SHA512.
  • Real-time kernel and userspace patching with Ksplice for Oracle Linux to simplify managing cloud infrastructure and improve security.
  • Support for key cloud technologies. Xen host and guest domain feature and performance enhancements, Open vSwitch and VXLAN improvements for networking, cgroups and namespace enhancements for linux containers and Docker.
  • Enhancements to Oracle Linux DTrace for dynamic, real-time system tracing on production systems
  • The production release and support of Ceph Storage for Oracle Linux Release 1.0, based on the upstream Firefly release
  • New real-time kernel features including timerless (tickless) multitasking and the addition of the deadline scheduling class
  • Enhanced infiniband features including improved protocols, drivers and firmware.
  • A number of updates to key areas such as XFS, Btrfs, Ext4, NFS, FUSE and the Overlay file systems.
  • A number of driver updates supporting the latest hardware.

This has been a major engineering effort that can benefit every Oracle Linux customer. For more information on this release, please review the release notes here.

Oracle Linux is available to download from the Oracle Software Delivery Cloud and the Oracle Yum repos.

Friday Dec 11, 2015

FRIDAY SPOTLIGHT: Why Oracle Linux for Modern, Cloud-Enabled DataCenter?

Happy Friday everyone!

We have a great video to share with you this week. In this animated video,  learn how Oracle Linux includes the features and tools you need for your modern, cloud-enabled data center. 

While Oracle Linux is open source and includes standard technologies, tools, and features, Oracle extends the release to deliver a complete, integrated, and supported platform for performance-driven production workloads. In addition to the Red Hat Compatible Kernel (RHCK), Oracle supplies the optimized Unbreakable Enterprise Kernel (UEK), which was first developed to support highly scalable Oracle Engineered Systems. Support for Oracle Linux is affordable and the release is free to download and distribute, unlike other commercial Linux distributions. To add even greater value, Oracle bundles additional capabilities—Ksplice for zero-downtime kernel updates, support for Docker, Linux Containers, OpenStack, Oracle Clusterware for High Availability (HA), and more—at no additional charge with an Oracle Linux Premier Support contract. As a result of these additions, companies receive greater value from their Linux support investment, allowing IT organizations to achieve a higher return on investment.

Watch Oracle Linux for the Cloud-Enabled Datacenter.

Friday Nov 13, 2015

Announcing the general availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 7

We are pleased to announce the availability of the Unbreakable Enterprise Kernel Release 3 Quarterly Update 7 (UEKR3U7) for Oracle Linux 6 and Oracle Linux 7. This is the seventh quarterly update release for UEK Release 3 (Version 3.8.13-118) and includes driver updates and a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • For Oracle Linux 7 installations, support has been included for network teaming, which includes active-backup, broadcast, load-balancing and round-robin modes
  • Continued enhancements for Linux containers including the introduction of the new LXC flag --privileged=rt which allows the administrator the ability to run real-time processes
  • Support for Intel® Broadwell processors
  • Xen improvements, including updates to netfront and netback drivers
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Broadcom
    • Chelsio
    • Emulex
    • Intel®
    • Mellanox
    • QLogic
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

Tuesday Oct 06, 2015

Docker Engine 1.8 released

Oracle is pleased to announce the release of Docker Engine 1.8 for Oracle Linux 6 and 7 to the addons channel on both the Unbreakable Linux Network and the Oracle Yum Repository. This release aligns with the upstream Docker project. Oracle has worked closely with the upstream project to ensure that Docker builds and runs on Oracle Linux.

Note that Docker 1.8 is only supported with the Unbreakable Enterprise Kernel Release 3 on Oracle Linux 6. The Red Hat Compatible Kernel is not supported. 

There is no automatic upgrade from the previous Docker 1.6.1 release, as the package name has changed in this release. Containers created with the previous version will continue to work with Docker 1.8.

Please review the Oracle Linux documentation for upgrade instructions:

There are significant changes, new features and fixes in Docker from the previous 1.6 release.  

Friday Aug 21, 2015

Friday Spotlight: Building the Modern Cloud-Enabled Data Center

Happy Friday!

Thanks so much to everyone that stopped by our booth and went to our sessions at LinuxCon North America 2015! We had a great time and it was fantastic getting the opportunity to meet and speak with many of you in person.

Some of the things that are top of mind for Linux users are (obviously!) the cloud impact on data center design, container technologies, OpenStack, security, and so on. So I looked through our archive to find a webcast that I think does a great job outlining how Oracle Linux approaches these things. If you're looking for a brief overview this Friday afternoon, head on over to this webcast archive and have a watch:

Building the Modern Cloud-Enabled Data Center with Oracle Linux 7

We'll see you next week!

-Chris 

Thursday Jul 30, 2015

Announcing the general availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 6

We are pleased to announce the availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 6 (UEKR3U6) for Oracle Linux 6 and Oracle Linux 7. This is the sixth quarterly update release for UEK Release 3 (Version 3.8.13-98) and includes driver updates and a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • Driver for Intel Sandy Bridge memory controllers (sb_edac) version 1.0.0 included
  • New hardware support for SGI UltraViolet 3 platform
  • LXC Improvements in kernel and userspace including a new --privilege option when creating containers
  • Xen improvements such as preventing soft lockups due to long-running hypercalls and preventing memory leaks in the Xen block driver
  • DTrace improvements for using User-Level Statically Defined (USDT) probes in 32-bit applications on 64-bit hosts
  • Support for more than eight PTP hardware clocks (PHC)
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Adaptec
    • Broadcom
    • Cisco
    • Emulex
    • Intel
    • QLogic
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

The July 2015 Oracle Linux Newsletter is Now Available

The July 2015 edition of the Oracle Linux Newsletter is now available! In this issue, read about:

  • Getting Started with Docker on Oracle Linux
  • LinuxCon North America
  • Oracle VM VirtualBox 5.0
  • Oracle Private Cloud Appliance 2.0.5
  • Oracle OpenStack SlideShare site
  • And much more!

You can read the latest edition online right now, or subscribe to get it automatically sent to your inbox. Enjoy!

-Chris 

Friday Jul 10, 2015

Friday Spotlight: Oracle VM VirtualBox 5.0 is out!

Happy Friday!

I know a lot of folks use Oracle VM VirtualBox to run Oracle Linux VMs. I do this myself every day. The ability to run multiple machines with different operating systems on a laptop is incredibly helpful. For example, you can do Docker development in Oracle Linux on your Macbook. Or if you're running Linux as your main OS, you could have a Windows VM, maybe for some pesky corporate apps that won't run on Linux. The possibilities are just endless.

Oracle VM VirtualBox 5.0 was released this week, with a number of key features. Things like:

  • Runtime disk encryption
  • Drag and drop between nearly all host and guest combinations (including my typical Mac host->Oracle Linux guest setup)
  • USB 3.0 support
  • Headless launch support (say you need a local server VM running in the background!)
  • Performance improvements with paravirtualization for newer Linux and Windows guests

And a lot more.

Have a look at the Oracle Virtualization blog post for more details, and go grab Oracle VM VirtualBox 5.0 here.

Have a great week!

-Chris 

Friday Jun 05, 2015

Friday Spotlight: Oracle OpenWorld Latin America 2015

Happy Friday! Our Spotlight this week is on one of our favorite topics, Oracle OpenWorld!

Oracle OpenWorld Latin America 2015 is quickly approaching and there is a lot of information on Oracle Linux, Oracle virtualization, OpenStack, Docker, and much more for you to enjoy and learn about.

Oracle OpenWorld Latin America 2015
June 23-25, 2015
Transamerica Expo Center
São Paulo, Brazil

The content catalog is open and there you will find four sessions dedicated to Oracle Linux and virtualization, and a huge number of other topics. In addition, there will be demos of our technologies in the DEMOgrounds areas.

If you're attending Oracle OpenWorld Latin America this year, we hope to see you there!

-Chris

Friday May 22, 2015

FRIDAY SPOTLIGHT: Getting Started with Docker on Oracle Linux

Happy Friday everyone! 

We have a great technical article for you this Friday.  In this article, you learn how to customize a Docker container image and use it to instantiate application instances across different Linux servers. This article describes how to create a Dockerfile, how to allocate runtime resources to containers, and how to establish a communication channel between two containers (for example, between web server and database containers). 

Ginny Henningsen quotes "Docker is exciting because it can easily capture a full application environment into a virtual container that can be deployed across different Linux servers. System administrators and software developers are learning that Docker can help them deploy application images on Linux quickly, reliably, and consistently—without dependency and portability problems that can inject delays into planned deployment schedules. Docker containers can define an application and its dependencies using a small text file (a Dockerfile) that can be moved to different Linux releases and quickly rebuilt, simplifying application portability. In this way, "Dockerized" applications are easily migrated to different Linux servers where they can execute on bare metal, in a virtual machine, or on Linux instances in the cloud. "

As shown in Figure 1, Docker containers consume fewer resources than "heavyweight" hypervisor-based solutions. Hypervisor-based solutions host a full-blown operating system instance in each virtual machine guest, but this also allows them to support different operating systems. (Oracle VM, for example, can host Oracle Linux, Oracle Solaris, and Microsoft Windows in virtual machines.) 

Read more 

Friday May 01, 2015

Friday Spotlight: Optimizing Oracle Database Performance on Oracle Linux with Flash

Happy Friday!

This week, I'm dipping into the archives for a really interesting white paper, "Optimizing Oracle Database Performance on Oracle Linux with Flash." It talks about one of my favorite benefits of running Oracle Linux or Oracle Solaris with Oracle database called Database Smart Flash Cache. From the summary of the paper:

"This document explains how to increase Oracle database performance and improve user response time by deploying Oracle’s Flash Accelerator hardware with Oracle’s Database Smart Flash Cache feature. Oracle’s Database Smart Flash Cache feature is supported only on Oracle Linux and Oracle Solaris operating systems beginning with Oracle 11gR2.

The benefits outlined here apply to all Oracle Flash products on Oracle Linux or Oracle Solaris. For this particular study Oracle’s PCIe based in-server Sun Flash Accelerator F40 PCIe Card and Oracle Linux with Unbreakable Enterprise Kernel were used. The findings apply to both the Sun Flash Accelerator F40 and F80 PCIe Cards."

You can read the full paper here.

I also wanted to give a reminder for our webcast next week on Docker. This is a fantastic opportunity to learn not only how to get your feet wet with Docker and Oracle Linux, but you'll also learn the sorts of use cases where Docker really shines from one of our top experts, Avi Miller.

Getting Started with Oracle Linux and Docker webcast
May 7, 2015
2PM-3PM Pacific Time

Register Now

We'll see you next week!

-Chris 

Wednesday Apr 29, 2015

Learn about Docker and Oracle Linux!

Docker has been an extremely interesting technology for Linux users, but how do you get started with it? We have a very cool webcast coming up that you won't want to miss titled "Getting Started with Oracle Linux and Docker."

Featuring Oracle Director of Product Management Avi Miller, the webcast will describe how Docker can be used with Oracle Linux to simplify your application deployment. Avi has a wealth of experience with Linux, Docker, and many other technologies and will take you through the nuts and bolts of using Docker with Oracle Linux.

Getting Started with Oracle Linux and Docker webcast
May 7, 2015
2PM-3PM Pacific Time

Register Now

If you have any interest in Docker, you won't want to miss this!

-Chris 

Friday Apr 24, 2015

Friday Spotlight: Oracle Linux 7 - Optimizing Deployment Flexibility and Increasing ROI

Happy Friday!

Our spotlight this week is a fantastic new white paper called "Oracle Linux 7 - Optimizing Deployment Flexibility and Increasing ROI". From the summary:

"This paper describes Oracle Linux 7 features that help IT organizations deploy strategic applications effectively and efficiently. It discusses the advantages of choosing Oracle Linux and how the operating system brings value to enterprise application delivery. It also explores versatile technologies that are supported with Oracle Linux (such as Linux Containers, Docker, Oracle VM, and OpenStack) that allow IT architects to choose how best to deploy and meet requirements for agile cloud and virtualized application environments."

Have a look for some Friday afternoon reading.

See you next week!

-Chris 

Friday Mar 27, 2015

Friday Spotlight: Oracle Linux at Collaborate 15

Happy Friday!

If you’re headed to the Mandalay Bay in Las Vegas for Collaborate 15 in a couple of weeks, you’ll be able to learn a lot about Oracle Linux and Oracle VM. We will have a demo pod in Oracle’s demo area (booth #955) where you can talk to our experts and get your questions answered. The demo area is open Monday, Tuesday, and Wednesday of the show.

Also, be sure to attend our "Oracle Linux and Oracle VM Strategy, Update, and Roadmap” session at 4:30PM on Monday, April 13 in South Seas A. The conversation will include information on OpenStack, Docker, and other exciting things relating to Oracle Linux and Oracle VM.

April 12-16
Las Vegas, NV

We hope to see you there!
-Chris
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