XenServer Documentation, Guest Enhancements

management software. When these extensions are deployed, VMs cannot impersonate any other VM, or intercept traffic intended for any other VM, increasing security in environments where VMs cannot be fully trusted. For a White Paper discussion, refer to CTX134787.

•VLAN Scalability improvements: removes a previous limitation which caused VM deployment delays when large numbers of VLANs were in use. This improvement enables administrators using XenServer 6.1.0 to deploy hundreds of VLANs in a XenServer pool quickly.

•Emergency Network Reset: provides a simple mechanism to recover and reset a host's networking, allowing system administrators to revert XenServer hosts to a known good networking state. Refer to CTX131972 for detailed information.

•IPv6 Guest Support: enables the use of IPv6 addresses within guests allowing network administrators to plan for network growth.

Guest Enhancements:

•Citrix XenServer Conversion Manager: enables batch import of VMs created with VMware products into a XenServer pool, to reduce costs of converting to a XenServer environment. Refer to the XenServer Conversion Manager Guide.

•New Installation Mechanism for XenServer Tools: XenServer Tools are now delivered as industry-standard Windows Installer MSI files. This enables the use of third-party tools to deliver and manage the installation and upgrade of the XenServer device drivers. For more information on MSI files, refer to http:// technet.microsoft.com/en-us/library/bb742606.aspx.

Enhanced Guest OS Support: Newly Supported Guests:

•Ubuntu 12.04

•CentOS: 5.7, 6.0, 6.1, 6.2

•Red Hat Enterprise Linux 5.7, 6.1, 6.2

•Oracle Enterprise Linux 5.7, 6.1, 6.2

Ongoing Improvements:

•XenCenter: performance graphs simplified, layout changes are now more intuitive for IP address configuration, filters are enabled for System Alerts.

•XenServer Tools: guests running Windows operating systems can now make use of either Microsoft .NET 3.5 or .NET 4.0 when installing XenServer Tools.

•Simplified mechanism to adjust Control Domain ("dom0") vCPUs. Refer to CTX134738 for details.

•Updated Open vSwitch: v1.4.2 provides stability and performance improvements. For more information, refer to http://openvswitch.org.

•Integrated StorageLink (iSL) support for EMC VNX series arrays (SMI-S)

•GPU Pass-Through: support for up to 4 GPUs per host.

•Interoperability extensions for Third-Party Tools: additional Asynchronous XenAPI C language bindings, Workload Balancing (WLB) extensions and general improvements.

•Automated Server Hardware Test Kit - reduces the time spent running certification tests - refer to the Verification Test Kits & Forms for Citrix XenServer for more information.

•Support for hypervisor monitoring (vhostmd) allows SAP software to run inside a XenServer VM, refer to CTX134790 for configuration details.

1.4. XenServer Documentation

XenServer documentation shipped with this release includes:

• Release Notes cover known issues that affect this release.