Volume Shadow Copy Warning: VSS spent %1 seconds trying to open and flush the volume %2. This might cause timeouts while ...

Volume Shadow Copy Warning: VSS spent %1 seconds trying to open and flush the volume %2.  This might cause
timeouts while flushing other volumes in the shadow-copy set, causing the shadow-copy creation to fail.  Trying again when
disk activity is lower may solve this problem.
%3