The network stack for Oracle Solaris 11 has been substantially re-architected in an effort known as Project Crossbow, a main goal of which is to virtualize the hard NICs into Virtual NICs (VNICs) to provide more effective sharing of networking resources. Raghuram Kothakota blogs on how LDoms networking is integrated with all the networking enhancements in S11, mainly with project Crossbow. His post is a high-level view of how LDoms virtual switch in an S11 service domain and LDoms virtual network device in an S11 Guest domain.
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Oracle has produced a true SPARC Engineered System that integrates Solaris on SPARC, Exadata and Exalogic. And this new system is the Oracle SPARC Supercluster, which is built on the new T4 chip and its new architecture, which has resulted in the SPARC T4-4 Server as the the top of the line 5RU model. SPARC Supercluster also includes the integration of Infiniband and the flexibility of Logical Domains (LDoms) as well as a ZFS Storage Appliance to support the Exalogic clustering storage needs, plus Exadata Cells.]
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The blog post "Deploying Oracle RAC DB 11gR2 on LDoms Virtualization" is a "cookbook" approach to configuring and installing Oracle Real Application Cluster (RAC) Database 11.2.0.2 on Solaris 10 and Logical Domains on Sun CMT servers (also using ZFS). He concludes that LDom is a good choice for RAC deployment for, among other reasons, it is a virtualized hosted environment; it permits easy reallocation/deallocation of system resources dynamically; it allows for optimized system utilization and space/utility consumption.
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Oracle Enterprise Manager Ops Center 11g update 2 is now available, blogs Steve Wilson. Current users should see update 2 available in their auto update tab when logged into the enterprise controller. Update bundles will be available shortly through Oracle eDelivery, Wilson announces, promising to post updated links to those as soon as they're available. The new features in update 2 include support for Oracle Linux 6 and Oracle VM Server for SPARC 2.1, plus various improvements in virtual networking set up for Oracle VM SPARC guests and Oracle Solaris Containers
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With the release of Oracle VM Server SPARC 2.1 (OVMSS) users can now enjoy several new and important features that amount to useful enhancements of this solution. These features are:
Live Domain Migration
CPU Dynamic Resource Management
DTrace enablement
Improved allocation and deallocation of CPUs and crypto units
Bug fixes and performance improvements are included in the release as well. A blog devoted to the live migration feature in this release will soon be available. OVMSS was once referred to as Logical Domains (or LDoms) but, whether by that name or by OVMSS, this solution is a virtual machine capability built into Oracle's T-series SPARC Chip Multithreading (CMT) servers, permitting up to 128 domains (virtual machines) on a single server at no extra cost. That last phrase is worth repeating: " ... at no extra cost."
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