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Logical Domains (LDoms)

Learn How to Drive Efficiencies and Reduce Cost with Consolidation and Virtualization

Overview

Increase Server Utilization, Efficiency, and ROI for Free.
Logical Domains (LDoms) provides built-in and no-cost virtualization capabilities for Sun Chip Multithreading (CMT) Servers. Unlike proprietary virtualization technologies, LDoms can save you up to $10,000 per server. It allows you to create virtual machines that take advantage of the massive thread scale offered by these platforms. Create up to 128 virtual servers on one system... for free!

Confidently Deploy on LDoms
The Solaris 10 Binary Application Guarantee Program includes Logical Domains. Customers and developers can confidently deploy their ISV and third party apps on LDoms that are currently qualified for Solaris 10 without going through re-qualification. The Hardware Compatibility List entry for LDoms is listed here.

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At a Glance

Logical Domains offers a powerful and consistent methodology for creating virtualized server environments across the entire CMT server range:

Create multiple independent virtual machines quickly and easily using the hypervisor built into every CMT system.
Leverage advanced Solaris technologies such as ZFS cloning and snapshots to speed deployment and dramatically reduce disk capacity requirements.
Utilize advanced LDoms features such as redundant virtual networks and disks to create higher availability domains.
Dynamically reallocate resources such as CPU, virtual disks and networks as required, on the fly to ensure workloads and services get the resources they need.

Blogs & Resources

OpenSolaris LDoms
LDoms community resources and links to other blogs and whitepapers

Sparks and White Noise
In depth articles on LDoms and CMT systems

LDoms Community Cookbook
Best practices and advanced functions

LDoms Discussion Forum
Discuss methodologies and features with other LDoms users

Customer Perspectives

With LDoms and Solaris Containers, United States Air Force was able to reduce rack space to achieve a 13:1 consolidation ratio, decreased server deployment time by more than 90% and cut datacenter power consumption by more than 25%.

"As Europe's second largest web host, at peak we get up to 1 billion mail-in deliveries (email traffic) per day. After testing the new quad-socket Sun SPARC Enterprise T5440 server, we discovered that only one T5440 is sufficient to handle the whole load and can replace 10 of our existing Sun Fire T2000 servers. Also Sun's open-source, no cost virtualization technologies, Logical Domains (LDoms) and Solaris Containers can further help us consolidate even more applications. In addition, we were really impressed with the performance, scalability, and eco-efficiency of the Sun SPARC Enterprise T5440 server. In fact, we anticipate we may save up to 30% on power consumption alone." Rene Wienholtz, CIO and management board member, STRATO

See All

What's New

Ops Center 2.5 Comprehensive Systems Management

Oracle WebLogic and Oracle Fusion Middleware support

Oracle 10g Single Instance and Oracle 10g RAC certified

LDoms 1.2 adds a number of new features, including:

Improved Network performance with the introduction of support for jumbo frames
Reduced power footprint with CPU power management, powering off cores that aren't in use automatically
Easier adoption with support for physical-to-virtual migration tool
Quick start with support for configuration assistant tools
Faster agility with enhancements to Domain Mobility
Increased control and response to guest availability with Domain dependencies
In-built protection from corruption with Auto-recovery of configurations