Book Image

Optimizing Citrix?? XenDesktop?? for High Performance

By : Craig Thomas Ellrod
Book Image

Optimizing Citrix?? XenDesktop?? for High Performance

By: Craig Thomas Ellrod

Overview of this book

Citrix XenDesktop is a suite of desktop virtualization tools designed to provide users with fast and convenient access to their Windows desktops and applications through any device. Virtual desktops mean that rather than setting up hundreds or thousands of individual computers in an enterprise, companies can instead opt to create servers with large amounts of memory, disk, and processing resources, and use virtualization to offer these resources to end users. The result of this is that users are provided with an experience that appears to be identical to having an individual desktop PC. Each user has some disk space, processor time, and memory allocated to them, as though it is present on their own physical machine, when in reality, the resources are physically present on a centralized server. This book starts by answering the basic questions you need to ask when considering XenDesktop, followed by methods of how you can properly size your server infrastructure for XenDesktop. You’ll discover how to optimize the virtual machines used in XenDesktop, how to optimize your network for XenDesktop, and how to optimize the hypervisor and the cloud. You’ll also learn how to monitor XenDesktop to maximize performance. By the end of the book, you will be able to plan, design, build, and deploy high performance XenDesktop Virtualization systems in enterprises. You will also know how to monitor and maintain your systems to ensure smooth operation.
Table of Contents (18 chapters)
Optimizing Citrix XenDesktop for High Performance
Notice
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Citrix® Delivery Controller tweaks


When considering Delivery Controller performance tweaks, study the following.

SQL mirroring

On large XenDesktop sites, you might be creating more than one delivery controller. If that is the case, use SQL mirroring for fast failover. SQL mirroring is all about the high availability of the SQL database. Mirroring works on a per-database level and works with databases that use the full-recovery model. One server acts as the primary or principal server that serves clients, and the other server acts as a hot standby mirror server. Hot standby means rapid failover without data loss.

Database mirroring can use either a synchronous or asynchronous operation. Asynchronous updates hit each database immediately, while synchronous updates hit both databases in synchronization with each database at the cost of latency. Synchronous operation is considered high-safety mode and is more protective of data. Asynchronous operation is considered high-performance as it writes...