Are the hosts blades?
I've worked with Cisco UCS blades in the past where the firmware would cause issues like this, but it's usually listed in the readme file or release notes for the firmware. Thanks, Eric Morrison From: [email protected] [mailto:[email protected]] On Behalf Of Graeme Carstairs Sent: Tuesday, May 21, 2013 5:49 AM To: [email protected] Subject: [NTSysADM] Hyper V Server 2012 Vritual Switch Canot change/remove One of our hardware team decided that our Hyper-V host should have their firmware upgraded. They are running Hyper-V Server 2012. It would appeart the in doing so the network card names or id's htat are passed through ave changed, and as such when they started up the networking wasnt working. After much fun in Powershell, and not being able to configure the existing virtual switch I have managed to create new Virtual Switches on all the hosts and set the netowrking back the way it was and all is well, guest VM's all working fine. And the original virtual switch I had to then configure to private, and then i got the error about file not found but eventually it let me remove it. Is this common that when the BIOS is updated the Built in NIC ID's Change??? Also will this happen when we upgrade the NIC firmware cos guess what a strange issue we have been having with netowrk perfrormance has been identified as being resolved in a firmware update???? Thanks Graeme -- Good news everyone, you have just received an e-mail from me!
