Monday Nov 15, 2010

White paper updated: Running Oracle Real Application Clusters on Oracle VM Server for SPARC 2.0

"Running Oracle Real Application Clusters on Oracle VM Server for SPARC 2.0" white paper was updated to reflect all the Changes and Improvements of Oracle VM Server for SPARC 2.0.

Some key points from white paper:

  • UltraSPARC T2, T2Plus and SPARC T3 processors only supported. T1 is not.
  • Oracle Solaris 10 09/10 (Update 9) or later is required.
  • Running Oracle RAC on Oracle VM Server for SPARC requires the use of Oracle 10g R2 (Oracle 10.2.0.4) or later with the same patch set on all nodes.
  • Link-based IPMP enables you to build IPMP group of private (and/or public) network interfaces within guest domains. No need to have host based routing anymore!
  • With Memory Dynamic Reconfiguration you may add more memory to guest domain while database instances are running. When going down, don't go below SGA+PGA or you may end up with swapping.
  • How to setup Jumbo Frames example given.
  • Pay attention to Availability white papers mentioned in the Reference section.

The authors would like to thank Daniel Dibbets, Sridhar Kn, Rahim Mau, Wataru Miyoshi, Khader Mohiuddin, Ezhilan Narasimhan, Gia-Khanh Nguyen and Uday Shetty.


Thursday Jun 04, 2009

Running Oracle Real Application Clusters (RAC) on Sun Logical Domains (LDoms)

BluePrint of Running Oracle Real Application Clusters (RAC) on Sun Logical Domains is available now. In this blueprint you will find step-by-step configuration example of two nodes in two guest domains located on two separate boxes. Use it as starting point to build your own cluster.

This article discusses running Oracle Real Application Clusters (RAC) on servers configured with Sun™ Logical Domains (LDoms). Sun LDoms virtualization technology allows the creation of multiple virtual systems on a single physical system, and enables fine-grained assignment of CPU and memory resources to an Oracle RAC workload. When deployed on Sun's CoolThreads™ technology-based servers, with up to 256 threads per system, this solution provides a powerful platform for both development and production environments. In development environments, multiple Oracle RAC nodes can be deployed on the same physical server to reduce hardware costs, while a production environment can place each Oracle node on a separate physical server for increased availability.

The authors would like to thank Sridhar Kn, Ezhilan Narasimhan, Gia-Khanh Nguyen, Uday Shetty from Sun Microsystems, as well as Rahim Mau, Khader Mohiuddin from Oracle Corporation for their contributions during the certification of Oracle on Sun Logical Domains.

Sunday Feb 22, 2009

Oracle Database 10g и Real Application Cluster сертифицированы с Sun Logical Domains (LDoms)

Oracle Database 10g и Real Application Cluster (RAC) отныне официально сертифицированы и поддерживаются на Sun Logical Domains (LDoms). Детали доступны так же в technology support matrix. Используя технологию виртуализации LDoms администратор максимально гибко управляет ресурсами системы и получает максимальный уровень безопасности, одновременно увеличивая уровень использования имеющихся серверов.

Среди множества возможных конфигураций я хотел бы специально отметить возможность создания кластера из нескольких нод, расположенных на одном единственном физическом сервере. Начните создавать свой кластер на чипе прямо сейчас.

Ожидайте, скоро тут появится пример конфигурации.

Oracle Database 10g and Real Application Cluster certified on Sun Logical Domains (LDoms)

Oracle Database 10g and Real Application Cluster (RAC) now officially certified and supported on Sun's Logical Domains (LDoms). For details also check technology support matrix. With LDoms virtualization technology administrators can achieve great level of resource management and security level at the same time having higher utilization of servers.

Among several types of deployment I would like to mention one specifically for developers. By using LDoms now you can have single box with a number of guest domains configured as a cluster nodes. Start with making cluster on a chip.

Stay tuned for real world configuration example.

About

Roman (pomah) Ivanov, ISV Engineering. Tips how to run Oracle best on Sun. Performance monitoring and tuning for system administrators. OpenSolaris user experience.

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