Name: Intel S3420GP
Brand: Intel
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Citrix* XenServer* 5.5.0 Installation Guide -

Intel® Server Board S3420GP

Citrix* Essentials* for XenServer includes a new storage integration service called StorageLink. Via

StorageLink, administrators may directly manage the fast cloning, snapshot, and thin provisioning

capabilities of many models of intelligent storage.

Usability and Reliability

Performance statistics now persist in a round-robin database on the XenServer* pool, with decreasing

granularity as time passes. This enables long-term trending and resource optimization for complex

data center deployments. The XenCenter* GUI supports connecting to hosts running the current and

previous release, and has several new features:

 Host networking configuration support, including dedicating network interfaces for storage use.

 Permit editing settings on existing SRs, and improved workflow for detaching and reattaching SRs.

 Support user-defined grouping and searching across VMs, hosts and resource pools, including

defining custom fields and tags to identify resources.

 New interactive graphing interface to display persistent performance statistics across resource

pools.

 Detect when a host has been re-installed and warn the administrator.

 Enhanced support for keeping hosts up-to-date with the latest improvements:

 Rolling zero-downtime resource pool upgrades from the previous release to XenServer* hosts.

 XenCenter* support to automatically check for updates and generate alerts for the administrators

if any are available.

 Integration with StorageLink SRs (only in Citrix Essentials)

A menu-driven text console is now present when connecting to the main screen of the XenServer*

host. This new interface provides an alternative to XenCenter* for common operations or when

networking is not otherwise available. The boot process is more user-friendly, with a graphical splash

screen and progress indicator.

Performance and Hardware

The core Xen* hypervisor has been upgraded to a version based on the stable 3.3.1 release. Major

improvements include:

 Support for Intel® Xeon® processor 5500 series, (Intel® microarchitecture, code named Nehalem)

including Enhanced Page Table (EPT) optimizations and other performance improvements

 Improvements to emulating legacy 16-bit code means a wider variety of older applications and

bootloaders will run successfully. Support for foreign-language versions of Windows* are

improved.

 The Windows* paravirtual storage drivers now utilize a SCSI filter interface which reduces

overhead and increases performance when used with multiple virtual disks.

 Citrix* XenApp* performance is further optimized with improvements to Xen* shadow page-table

handling.

Reduced memory usage in the control domain increases the maximum number of VMs supported.

Intel S3420GP Installation Guide

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