ix

Workload Balancing ................................................................................. 85
What’s New? ............................................................................................................................ 85
New Features .................................................................................................................... 85
Changes .......................................................................................................................... 86
Workload Balancing Overview ....................................................................................................... 86
Workload Balancing Basic Concepts ...................................................................................... 87
Workload Balancing Installation Overview ........................................................................................ 87
Workload Balancing System Requirements .............................................................................. 88
Supported XenServer Versions ...................................................................................... 88
Supported Operating Systems ...................................................................................... 88
Recommended Hardware ............................................................................................ 88
Workload Balancing Data Store Requirements .......................................................................... 89
SQL Server Database Authentication Requirements .......................................................... 89
Operating System Language Support ..................................................................................... 90
Preinstallation Considerations ................................................................................................ 90
WLB Access Control Permissions .................................................................................. 91
Installing Workload Balancing ................................................................................................ 91
To install Workload Balancing server ............................................................................... 92
To verify your Workload Balancing installation ................................................................... 93
Configuring Firewalls ........................................................................................................... 94
Upgrading Workload Balancing ............................................................................................. 94
Upgrading Workload Balancing on the Same Operating System ..... ..... ..... ..... ..... ..... ..... ..... .... 95
Upgrading SQL Server ................................................................................................ 95
Upgrading Workload Balancing and the Operating System ..... ..... ..... ..... ..... ..... ..... ..... ..... ..... 95
Initializing Workload Balancing ...................................................................................................... 95
To initialize Workload Balancing ............................................................................................. 96
Authorization for Workload Balancing .................................................................................... 97
Configuring Antivirus Software ............................................................................................... 98