At the moment we are facing storage issues in region CBK.
Some virtual VMs might experience storage performance issues.
We will keep you informed and apologise for any inconveniences.
EDIT 22:20: We are seeing some stuck IO in CBK. We are working hard to resolve the issues as quickly as possible.
EDIT 23:00: The issues are fully resolved now. We know the root cause and will implement measures to prevent this from happening again.