Citrix XenApp "Iron Cove" 6.5 Tech. Preview (Part.1) Citrix XenApp "Iron Cove" 6.5 Tech. Preview (Part.2) Citrix XenApp "Iron Cove" 6.5 Tech. Preview (Part.3) With Windows 2008 and after, Remote Desktop Services included a new way to disable logon on the machine (check this article to read more about it and thanks to Laurent Falguière) the classic way when disabling logon is always bringing problems when a user tried to launch his disconnected application hosted on a disable server... Now you can manage this behavior : Allow logons and reconnections. Enable all logons, reconnections, and session sharing (default setting). Prohibit logons and reconnections. Reroute all logons, reconnections, and session sharing to other servers. Prohibit logons only. Reroute new connections and session sharing, but allowing users to reconnect to disconnected sessions. This state persists until you change it manually. Prohibit logons until server restart. Reroute new connections and session sharing, as above, but after restarting the server, the setting automatically changes back to Allow logons and reconnections. Coming with this XenApp preview, you can find in the ISO file a new Citrix EdgeSight version, 5.4 S540 Tech Preview. Since my XenServer @ home just came back to life, I didn't had time to go very deep with this new EdgeSight release, here are so far what I noticed : EdgeSight 5.4 support Microsoft SQL 2008 R2 The new EdgeSight for XenApp client version is 5.4.0.5094 Tech Preview, only for XenApp 6 and XenApp 6.5 Older client version doesn't seem to work (my XenDesktop VMsare not showing up in EdgeSight console) EdgeSight 5.4 seems to integrate IPv6 parameters Some new options, like exporting licenses usage to a file (It doesn't work yet...) A great tool very under rated I think, this is XenApp Power and Capacity Management. This tool is going from version 1 to version 2.1. This tool helps you to switch on and off your XenApp servers regarding a load you configured within PCM console. You can read XenApp Power and Capacity Management with provisioned machines blog post I made last year. The console doesn't change at all, except in the Machine Manager (Connection to the hypervizor) where you can now use and connect XenApp PCM with Hyper-V, SCVMM and ESX with vCenter ! Now XenApp PCM is open to all big hypervizor on the market, I will implement it every time I'll have a new XenApp architecture to deliver…

Provisioning XenApp 6 Servers is very easy and make everything very simple but using third party Citrix products like EdgeSight or Power and Capacity Management can be tricky in order to make it work properly with provisioned services. The last issue I had was with Power and Capacity Management but before explaining everything, a quick remind : Citrix XenApp Power and Capacity Management can help reduce power consumption and manage XenApp server capacity by dynamically scaling up or scaling down the number of online XenApp servers. Consolidating sessions onto fewer online servers improves server utilization, while providing sufficient capacity to handle load while minimizing unnecessary power consumption. As users log on to the system and reduce the idle capacity (how much capacity is available for additional sessions), other servers in the workload are powered up. As users log off and idle capacity increases, idle servers are shut down. This helps optimize capacity for XenApp workloads. When installing PCM on the PVS master virtual machine to update the vDisk, everything ran smoothly, no problem at at, service was set to automatic. The service name is "Citrix XenApp Power and Capacity Management Agent" (PCMAgent) and have dependency toward "Citrix Independent Management Architecture (IMA)" and "Remote Procedure Call (RPC)". I assumed the service will wait XenApp is done launching IMA Service and then PCM Service would be able to launch. That was an error, I suppose XenAppPrepTool was taking too much time to launch IMA Service and a timeout occur for PCMAgent Service so the service was in auto but an error showed up in system event logs : Solution ? I choose the simple way, first try was to try to delay the PCMAgent service to wait for IMA Service startup. To do so, just switch from Automatic to Automatic (Delayed Start) in the service properties / Startup type : As I use a login script for the XenApp servers, a very good example can be find here : http://jariangibson.com/2010/03/17/using-edgesight-with-provisioned-xenapp-servers/ I just add a line to start the PCMAgent service : If you want to script the service startup type, you can inject registry using this value : in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\PCMAgent Then, update your vhd image and boot your provisoned XenApp servers, they should appear in PCM console. Sources: http://support.citrix.com/proddocs/topic/xenapp6-w2k8/ps-power-capacity-mgt-wrapper-v1.html http://jariangibson.com/2010/03/17/using-edgesight-with-provisioned-xenapp-servers/

Here we go, Green Computing is coming ! Now Citrix give us the ability to switch off XenApp servers and switch it on only when the load on the power on server reach a limit. This is very very smart and I think this Power and Capacity Management for XenApp will be a success.   You can watch bellow the video filmed during the Synergy 2009 in Las Vegas : [flash http://www.citrix.com/tv/s/tv/players/ctv_viral_1_0.swf?ctv=354 w=486 h=412] And of course with your MyCitrix account you can download the Technical Preview here : http://www.citrix.com/site/SS/downloads/details.asp?downloadId=1689982&productId=186&c1=sot1349740#top  Soon I will release a test of this new toy but I have to finish first my XenDesktop how to and after I would like to put online my test with Netscaler VPX Tech Preview.