SCVMM and XenApp 6.5 + PVS = Trouble!

Having been involved in a case for a long time now where a partner wanted to use SCVMM with XenApp 6.5 and PVS 7.1 for a customer and it has not been quite as successfull.

Now I wanted to share some notes with PVS and Hyper-V and what the limitations are there at the moment.

  • First of it is important to note that PVS 7.1 is the only version of provisioning that supports SCVMM 2012 R2, as the support matrix lists.

http://support.citrix.com/servlet/KbServlet/download/36944-102-708649/CitrixSupportedHypervisors.pdf

  • Using PVS with Hyper-V is now functional with PVS 7.1 this requires Legacy adapters in Hyper-V since Legacy adapters are the only NICs in Hyper-V that support PXE boot

 

  • Citrix has implemented a failover mechanism between Legacy and Synthetic which means that the streaming traffic can start from the Legacy adapter and then switch to the synthetic.

 

  • Hyper-V 2012 R2 does support PXE with Sythentic devices with Generation 2 Virtual Machines, but THIS IS NOT SUPPORTED BY CITRIX YET.
  • If we for instance are using a VM with two Legacy adapters, Hyper-V will always boot from the last legacy NIC added to the virtual machine, if we are using “Stream VM wizard” in PXE it will add the first NIC in the virtual machine meaning that we get the wrong MAC address in the PVS database
    • Hyper-V creates a new NIC GUID when creating a machine from a tempalte unlike Vmware or XenServer which does not.
    • Stream VM wizard in PVS creates virtual machines from templates which means that NIC’s on the PVS virtual machines get reinitialized when booting and therefore service stop responding since it delays the network start.
    • The only solution to this is to clone machines and then add them manually to PVS like in this CTX article –> http://support.citrix.com/article/CTX128750
    • XenDestkop setup wizard in PVS DOES NOT create virtual machines from template, but clones the virtual machine using a set of PowerShell cmdlets.

Hopefully 7.5 has support for Generation 2 Virtual Machines!

#pvs, #xenapp, #xendesktop