I have had an ongoing issue for months now. I cannot express the sheer exhaustion I'm feeling from this issue now.
I thought I would come to the forums, and see if anyone else has been experiencing similar issues. When running backups on my 4 Node cluster, I am experiencing very strange behaviour.
Just some things to note:
I use software VSS (Not ideal i know, but i have my reasons for using this over hardware VSS at the moment)
DS3400 IBM SAN
and HS22 Blade Servers
When running a backup on Veeam, sometimes the 1st VM or sometimes the 10th, the whole cluster will become unresponsive. Infact, you cant even go into hyper-v manager, its stuck on "Loading Virtual Machines...." The only way i can get everything back online again is by forcefully switching off the hosts hosting the VM's. I opened a call with Microsoft and they cannot find the solution and believes its an issue with the Veeam software, as it works fine on DPM. Which I cannot argue with... because it does work. It switches the mode to Redirected Access and works fine for each and every backup.
Its very hard to troubleshoot as i have to shut down our entire infrastructure to test this, and im having to manually do this on a regular basis.
I would appreciate any kind of feedback on this as its causing me major issues.