For this small environment, I would configure every 6.5 server as controller mode. Then set your preference for elections in the console. Thanks Webster From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Angela Smith Sent: Monday, February 11, 2013 5:22 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Zone Data Collector query Hi I need some help with configuring the Zone data Collector roles on my XenApp 6.5 farm. We have the following: - 1 XenApp 6.5 farm - 1 VM Server - 10 XenApp 6.5 Physical servers spread across 2 sites - Sites are connected with dual Gig links Potential design Site 1 Prod 1 x Dedicated VM Server configured as Controller and Session-host 5 x XenApp 6.5 (Session Host mode only) Site 2 Prod/BCM 5 x XenApp 6.5 (1 x Controller and Session-host, 4 x Session Host mode only) For redundancy I need a Controller server in Site 2. Should I use one of the existing Physical servers and configure as Controller and Session-host or should I create another VM server dedicated for this role? Is 2 dedicated servers for a farm of 10 servers overkill? My preference is to use one of the Physical servers so it will host user sessions and be a controller. Another option could be to run all 10 servers in Controller and Session-host mode or is this bad practice? Thanks Ang