Use shutil in case there are multiple filesystems involved.

salt/strelka/filecheck/filecheck

@@ -16,6 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
+import shutil
 import time
 import hashlib
 import logging
@@ -61,7 +62,7 @@ def process(filename, hizash):
         head, tail = os.path.split(filename)
 
         # Move the file
-        os.rename(filename, strelkapath + tail)
+        shutil.move(filename, strelkapath + tail)
 
 class CreatedEventHandler(FileSystemEventHandler):
     def on_created(self, event):