ResolutionThe VE is locked when a particular operation (backup, migration, start/stop, etc.) with this VE is in progress. You can determine which process is holding up VE #101, for example, using the following command on the Hardware Node:
# cat /vz/lock/101.lck
You can kill that process if necessary. Make sure that the process is really killed. If there is no process with that PID on the Node, simply remove the lockfile.