Prerequisites
,A Director requires the same prerequisite software as a Front End Server because it is still a subset of the Front End role. The different hardware, operating system, and software prerequisites are discussed in this section.
Hardware Requirements
This section discusses the recommended minimum hardware requirements for Lync Server servers.
The Lync Server Director processor requirements are as follows:
• Dual processor, quad-core 2.0 GHz or faster
• Four-way processor, dual-core 2.0 GHz or faster
Note
Lync Server is only a 64-bit application and requires a 64-bit-capable processor. This is generally not an issue with modern hardware, but be sure to verify that legacy hardware supports a 64-bit operating system before attempting to use it for a Director.
The Lync Server Director memory requirements are as follows:
• 12 GB RAM
The Lync Server Director disk requirements are as follows:
• 10K RPM HDD
• Local storage with at least 72 GB free space
The Lync Server Director network requirements are as follows:
• Dual 1 gigabit per second (Gbps) network adapters (recommended)
• Single 1 gigabit per second (Gbps) network adapter (supported)
Note
When using multiple network adapters, it is recommended to use them only for fault tolerance. This means network adapters should be used for failover only and not be teamed for greater throughput.
Operating System Requirements
The Lync Server Director supports the following operating systems:
• Windows Server 2008, x64 Standard Edition with Service Pack 2
• Windows Server 2008, x64 Enterprise Edition with Service Pack 2
• Windows Server 2008, x64 Datacenter Edition with Service Pack 2
• Windows Server 2008 R2, Standard Edition
• Windows Server 2008 R2, Enterprise Edition
• Windows Server 2008 R2, Datacenter Edition
Note
The Datacenter editions of both Windows Server 2008, x64 with Service Pack 2 and Windows Server 2008 R2 are supported by Microsoft, but they have not been fully tested for use with Lync Server.
The Windows Server Core, Web, and High Performance Computing editions for any operating system version are not supported for deployment.
Software Requirements
The Lync Server Director requires the following components to be installed:
• .NET Framework 3.5
• Visual C++ 2008 Redistributable
• PowerShell 2.0
• Windows Installer 4.0
• WinRM 2.0
• BITS 4.0
Server Roles and Features
In addition to the operating system and software requirements listed previously, a Director requires several Windows server roles, role services, and features to be installed. The following IIS role services are required for a Director installation:
• Static content
• Default document
• Directory browsing
• HTTP errors
• ASP.net
• .NET extensibility
• ISAPI extensions
• ISAPI filters
• HTTP logging
• Logging tools
• Request monitor
• Tracing
• Basic authentication
• Windows authentication
• Request filtering
• Static content compression
• IIS management console
• IIS management scripts and tools
Installing Server Roles
Windows PowerShell can be used to automate installation of the prerequisite roles and features instead of using the Windows Server Manager graphical. The following steps show how to use PowerShell for this purpose:
1. Log on to the server with an account that has administrative credentials.
2. Click Start and navigate to All Programs, Accessories, and Windows PowerShell.
3. Right-click the Windows PowerShell shortcut and select Run as administrator.
4. Select Yes when prompted by User Account Control.
5. Run the following command to make the server manager:
Import-Module ServerManager
6. Run the following command to install the Windows features and IIS role services required:
Add-WindowsFeature,RSAT-ADDS-Tools,RSAT-Web-Server,Web-Server,Web-Http-
Redirect,Web-Asp-Net,Web-Net-Ext,Web-ISAPI-Ext,Web-ISAPI-Filter,Web-
Log-Libraries,Web-Http-Tracing,Web-Basic-Auth,Web-Windows-Auth,Web-
Scripting-Tools –Restart
7. The server restarts when installation is complete.