I'm getting increasingly frustrated with XenServer. Currently I'm using 5.6FP1 and it seems to be very fragile. Canceling any VDI-related action almost guarantees trouble.

This time I tried to create a new VM using a snapshot for a template, with the fast disk cloning option disabled. It would take much longer than I was able and willing to keep my XenCenter open, so I canceled it. That took ages too, so I had to decide to "Quit Anyway."

Since, I seem unable to create any new VDI. New attempts at cloning halt with "The attempt to clone the VDI failed," and creating new VMs based on built-in templates hang at "Provisioning."

I'm in need of some advice how to solve this. What I did so far is run a xe vdi-list, which returned nothing odd to me, but I'm no expert. I assume that an incomplete VDI is blocking my Storage Repository somehow, however, how to deal with that remains unclear.