Wednesday Jun 10, 2015

Kdump configuration For Exalogic Elastic Cloud Software

Kdump is the Linux kernel crash-dump mechanism. In the event of a server crash, Kdump creates a memory image (vmcore) that can help in determining the cause of the crash. Enabling Kdump requires you to reserve a portion of system memory for exclusive use by Kdump. This memory is unavailable for other uses. Oracle recommends that you enable the Kdump feature in order to provide effective debugging of server crashes.

Details on how to enable kdump on Exalogic, both physical and virtual, are in MOS Doc 1996649.1

Wednesday Apr 29, 2015

Oracle Exalogic Elastic Cloud Software (EECS) for Oracle SuperCluster

This blog post is brought to you by Sachin Pikle of the Exalogic Product Management team.

We usually get a lot of questions on Oracle Exalogic Elastic Cloud Software (EECS) for Oracle SuperCluster – what is it, where can we use it, how do we install it, etc. Just recently someone asked me, “We have procured a new SuperCluster T5-8 rack. We also have EECS licenses. Now what do we do next? How do we get EECS up and running on this rack? “. In general, there seems to be some mystery surrounding EECS for SuperCluster. This post will help address questions like these.

Oracle Engineered Systems are designed and optimized to run specific workloads. Oracle SuperCluster is our SPARC-based Engineered System that combines the power of Oracle Exadata for running the database tier, and Oracle Exalogic for running the application tier in a single rack. SuperCluster integrates with optional EECS to run business applications and middleware components better and faster.

So what is EECS for SuperCluster? Simply put, EECS for SuperCluster has two distinct parts:

1. EECS Optimizations built in to Oracle Fusion Middleware products like WebLogic, Coherence and Tuxedo, designed to make your applications run a lot faster and better on SuperCluster


2. Oracle Traffic Director (OTD), a highly available software load-balancer over InfiniBand network fabric. OTD front-ends all requests coming in to the SuperCluster Rack and balances the load across multiple application instances running within the rack, keeping the traffic over high-speed InfiniBand fabric at all times

So where can I use Exalogic Software on SuperCluster? There are two primary use cases:

1. Improve performance and reliability of your business applications using EECS Optimizations. These optimizations, license-restricted to EECS only, are actually built in our upper stack Fusion Middleware products like WebLogic, Coherence, Tuxedo, etc. They are very easy to use. There is no EECS software to install. No code changes needed. All you need is the EECS license, and a few configuration changes, some of them as simple as turning on a switch from an admin console or inside a configuration file. And you will see up to 10 times better performance and reliability for Java and Fusion Middleware-based applications – Oracle apps, ISV Apps and custom Apps.

2. Load balancing over InfiniBand fabric using Oracle Traffic Director (OTD). OTD is our software load balancer and gives you the ability to load balance requests across multiple application instances running inside a SuperCluster rack. Your EECS license entitles you to download, install and use OTD software on SuperCluster. OTD is fully integrated with WebLogic. It is the best load balancer to front end multiple WebLogic managed servers. It can detect WebLogic server instances going down and can automatically route requests to remaining healthy servers. OTD can also be used as a reverse proxy.

To summarize, EECS on SuperCluster is

  • Easy to use

o EECS Optimizations built in Fusion Middleware products, no EECS installation needed

o These are license-only entitlements. So all you need is the EECS license

o Can be used with simple configuration changes, as simple as turning on a switch

  • Offers unmatched benefits

o Up to 10 times better application performance & reliability

o Oracle Traffic Director – Built-in high speed software load balancer on IB, at no extra cost

o Supports sub-capacity licensing

Tuesday Nov 04, 2014

Oracle Traffic Director on Exalogic

Today’s blog post is brought to you by Oracle Product Manager Sriram Natarajan

Oracle Traffic Director is an on-board Application Delivery Controller for Exalogic, designed to handle Reverse Proxy and application-to-application communication use cases. For more information, check out 

· Oracle Traffic Director Data Sheet

· Oracle Traffic Director within Oracle Technology Network

Versions / Patches

· Oracle Traffic Director 11g PS6 (11.1.1.7) is the recommended version. This is available for download either from Oracle Software Delivery (under Exalogic) or from OTN.

· Oracle Traffic Director July 2014 CPU patches is the critical patch required on top of 11.1.1.7. This patch addresses several potential security vulnerabilities, and is available within Oracle Support

Platforms Supported

· Oracle Traffic Director 11g currently supports Oracle Linux 5.6+ and Oracle Solaris 11.1+ on Exalogic

Useful documentation available within Oracle Technology Network and Support Knowledge Base

· Deploying Traffic Director in Exalogic - Topology Overview and Best Practices

· Tuning Traffic Director for high throughput traffic - Technical White paper

· Protecting Traffic Director from POODLE vulnerability - MOS Note 1938044.1

· Oracle Traffic Director Knowledge Base Information Center - MOS Note - 1626139.2

· For additional information, please visit Traffic Director’s Learn More section within Oracle Technology Network 


Monday Sep 24, 2012

If you want to learn all about Exalogic in 6 minutes, watch this demo!

If you haven't seen the latest Exalogic demo, click here now.[Read More]
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