(This isn't a citrix issue.. it's HyperV - I think - but Citrix background below just for info. The HyperV part seems to be killing me here. This incident relates to )
A slight problem has resurfaced during Citrix provisioned image update. The citrix side of is it kinda academic, the reason it's being a pain is in the image, the virtual machines have two NICs, one to boot off of (a legacy adapter), and one for citrix ICA
traffic (synthetic).
This has always worked great, ICA is bound to the right one and job done. All the VMs boot off the same provisioned image and we're off to the races.
Today I updated the citrix image - when I boot *some* VMs, it decides the synthetic adapter has somehow changed, and installs a new one. Which ICA doesn't bind to as it's not there at boot time, instead it attempts to bind to the non-routable boot nic and of
course clients then can't connect.
I'm at a total loss to explain how the guest has decided it has a new NIC in there. If I show hidden devices, I can see the old one of course, but the fact it's not there until the device has been installed is causing me a problem.
For fun, I booted the server I was using back on the old image, the one that had worked perfectly well - and it pulled a new NIC instance, just as the new image did. This leads me to suspect something is up with the host as of course the October image hasn't
changed, but I can't figure out what. Making matters worse, there are 5 servers running on that host, all on the same image - and the one I rebooted is the one showing this behaviour. The others are fine. As these are provisioned images, they ALL boot off
the same one, and any changes are discarded upon reboot.
Any ideas? Host is 2008R2 datacentre, guests are 2008R2x64 standard.
Thanks
AW
Bit of background - we've a Citrix XenApp 6 farm which provides desktops and apps to thin client devices. There's around a dozen physical hosts, running in the region of 45 VMs that the clients in turn to connect to. We've two base images (using Citrix provisioned
image) that are updated monthly and all guests boot off one of those.