Hi,
We are encountering some strange problems with a XenApp 5.0 farm that runs on Windows Server 2008 SP2. The farm consist out of 2 XenApp 5.0 servers with a single server that hosts the web interface. Underneath the OS we run VMware ESX 3.5 update 4. Usually everything runs ok but's the performance is very bad. The XenApp servers have 2 vCPU's and 4GB memory. We use roaming profile with folder redirection for some folders.
WE publish the desktop to our users so we installed all application on the 2 servers en use NTFS permissions for application access.
The problems:- Performance is not ok. When users are typing in Word (Office 2007) or other applications the characters will display with some latency, not always it happens sometimes.
- One server becomes unresponsive. Application that are allready started work very slow. New application which are started from the Start Menu won't appear. After some minutes the server goes further and all application will appear. It looks like the server is sleeping for a while. When that happens the System log shows the following errors:
7011 - A timeout (30000 miliseconds) was reached while waiting for a transaction response from the RasMan service. 7011 - A timeout (30000 miliseconds) was reached while waiting for a transaction response from the NlaSvc service. 7011 - A timeout (30000 miliseconds) was reached while waiting for a transaction response from the CryptSvc service. 10010 - The server {AAC1009F-AB33-48F9-9A21-7F5B88426A2E} did not register with DCOM within the required timeout.
Kind regards,
Onno van den Berg
Another observation: We had a situation recently wich required us to reset permissions on all of our users home folders. During this change we added "Local\System" to have full control permissions to the users homeshare folder (why it wasn't there before is a mystery to me). Since this change got underway three days ago none of our servers have gone down. Since it's been only a couple days I can't claim it is a silver bullet but two days without the issue occurring is unheard of in this environment.
I just ran into this same issue I think, Do you have any further updates on the status of this?
Thanks,
Adam
I haven't posted for quite some time as we have reolved our issues by reducing network load (file and mail access to SMB 2.0 severs) on each server with load balancing 22 users per server. I am convinced that it is an SMB 2.0 issue so thought I would pass on a link to a blog explaining how to tune servers for SMB 2.0 in a terminal server environment. Hopefully this will help anyone that is still having issues. I haven't tried any of the tuning suggestions as yet but might give them a go.
http://blogs.citrix.com/2010/10/21/smb-tuning-for-xenapp-and-file-servers-on-windows-server-2008/
Hope this helps.
Hope this is useful to those of you still dealing with this issue:
http://www.knownerror.com/2012/02/eventid-7011-on-unresponsive-windows-server-2008/