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administrators to manage both physical and virtual resources from a user interface that is consistent

with HP SIM.

The logical server

A logical server is a server profile that can be easily created and freely moved across physical and

virtual resources. By detaching the logical identity from the physical resource, administrators can—on

demand—create or move logical servers on any suitable virtual or physical machine (Figure 20). This

means the logical server brings the freedom and flexibility of virtualization to physical servers.

Figure 20. Diagram depicting movement of a logical server from one physical server to another

The logical server profile describes the system image resources, whether they are virtual, physical,

shared, or unshared. For example, a logical server profile would include entitlements and unique

identifiers such as power allocation, processor and memory requirements, network connections, and

storage—everything required for the OS and application stack to operate.

Using tools accessible through the HP Insight Dynamics–VSE Virtualization Manager, administrators

can apply a logical server to the creation of a virtual machine using software-layer abstraction

(hypervisor technology) or to a physical server blade using physical-layer abstraction (that is, HP

Virtual Connect technology). From the same interface, administrators can also create templates with

specific configurations for frequently used applications. These templates can be stored and

reactivated in minutes when needed.

Logical servers enable administrators to move server workload profiles quickly between physical and

virtual server resources as the business requirements change. With this level of control, administrators

can more easily increase the efficiency of server resource utilization and maintain availability in the

event of a server failure. Administrators can also control power and cooling costs more effectively by

taking logical server resources offline when an application does not require the system resources and

by bringing the same resources back online when the demands of the application change.

HP logical servers offer the strongest value when implemented in the BladeSystem c-Class environment

because it was designed to facilitate resource sharing. HP Virtual Connect technology, unique to the

HP BladeSystem, is the enabling technology used to deploy logical servers directly on physical

machines in a resource pool.