This is the second time I have this issue, when clicking on a publish application on the Citrix WebInterface I get this weir message : ERROR: The MetaFrame servers reported that the alternate address cannot be found. I mean weird because I'm on a LAN and I don't cross any subnet or different VLAN and there is no alernate address configured on these servers. Error Message at the bottom of my WI :   It looks like the LHC (Local Host Cache) doesn't contain valid informations. And the only way to be sure about that one is to simply recreate the Local Host Cache. So login on the computer and do as follow : Net stop imaservice /y : This command will stop Independant Managment Architecture service, Citrix WMI Service and Citrix SMA Service DSMAINT RECREATELHC Net start imaservice Net start "Citrix WMI Service" Net start "Citrix SMI Service" And this resolve this "small" problem. This is a common Citrix administration task and troubleshoot but if you don't know it, you cannot guess it.

Now the final release of XenServer 5.5 is available for download ( https://www.citrix.com/English/ss/downloads/results.asp?productID=683148 with you MyCitrix account ) I had to upgrade my XenServer 5.5 beta 1 to this new release. My first step was to download all iso files and XenCenter 5.5, the I began with and upgrade of XenCenter, and the problem I had once everything was install, that didn't work... The XenCenter console disn't show up, the I choose to uninstall everything and delete the folder in "c:\program files\Citrix\XenCenter" and proceed the setup again. It did the trick. Then I was able to use this console to shutdown all the virtual computers, and then you can watch this quikc video to check what's happen during an upgrade of XenServer, it's quite simple but if you don't have the opportunity to see it at least you'll know how it looks like. [flash medium=7]

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.