Posts Tagged ‘XenServer’

Why is Citrix refusing License Server VPX support for vSphere?

Written by Ingmar Verheij on February 5th, 2013. Posted in Citrix

With the release of Citrix XenServer 5.6 Citrix also released a new virtual appliance dedicated to licensing, the License Server VPX. The appliance is available since July 2010, in the 2.5 years the appliance is available only Citrix XenServer is supported.

Citrix ReadyIf you’re company is using VMware vSphere (or Microsoft Hyper-V) you’re unable to use the virtual appliance. Citrix refuses to release an appliance for other hypervisors then their own, let alone supporting other hypervisors. Technically it shouldn’t be too difficult to support other hypervisors (some people tried), they already do for the NetScaler VPX.

Citrix XenCenter crashes with error 0xc000007b

Written by Ingmar Verheij on July 23rd, 2012. Posted in XenServer

After launching Citrix XenCenter if crashed with error 0xc00007b and exited immediately. Although my work laptop is really in need of some TLC – it needs a clean install, I preferred troubleshooting the issue.

A quick trace with Sysinternals Process Monitor showed a dynamic link library (DLL) being loaded that I didn’t expect: Airfoilinject3.dll.

32bpp in XenServer virtual machine

Written by Ingmar Verheij on June 22nd, 2012. Posted in XenServer

Recently I had to setup a virtual machine on a Citrix XenServer host that could use 32bpp. This turned out harder than I thought because the default video adapter in a Xen virtual machine is a Cirrus with 4MB, and that video card is not capable of 32bpp.

Damn you C-states! (Unexpected XenServer reboot)

Written by Ingmar Verheij on February 21st, 2012. Posted in XenServer

Processors have the ability to save energy by entering a low-power mode. Each processor has serveral power modes called “C-states”. The C-states are introduced with the 486DX4 processor and are still present in the current processors. Over time more C-states are introduced to lower the power consumption and save energy.

Hypervisors (used to virtualize desktops or servers) like Citrix XenServers or Microsoft Hyper-V can have issues with  C-states causing them to freeze, BSOD or slow down. This happens when C-state 3 “Sleep” or higher is enabled the BIOS.

Remote desktop to XenServer VM via PowerShell

Written by Ingmar Verheij on February 14th, 2012. Posted in PowerShell, XenServer

Recently I wrote a PowerShell script that connects to the console of a virtual machine on a Citrix XenServer, without using XenCenter or the Web Self Service portal. This allowed me to offer a published application to my users so they can connect to the console session. But what if they want to connect via a Remote Desktop Connection (RDP)?

I’ve written a PowerShell script that looks up the IP address of the VM and connects via RDP.