Since a few weeks we have this problem with VMM that certain jobs take way longer in VMM then they really do on the Hyper-V host. Jobs I'm talking about are for instance increasing disk sizes, increasing VM memory sizes and creating checkpoints. These jobs normally took between a few seconds and a few minutes, but now they all take between 20 and 50 minutes! The real task itself, if I check the Event Logs, finish within the normal time, it's just that VMM doesn't detect this and keeps the job running for way too long. This means, that for our customers, the job takes way too long and they are unable to do any other actions to the VM.
Does anyone have any clue on what can cause this problem?