Bach Dániel · @bachdaniel · Őry Máté · Guba Sándor · Őry Máté · Guba Sándor
--- a/circle/storage/models.py
+++ b/circle/storage/models.py
+                message = ("The requested operation can'T be performed on "
+                           "disk '%s (%s)' because it has never been"
+                           "deployed." % (disk.name, disk.filename))
+
+            Exception.__init__(self, message)
+
+            self.disk = disk
+
    @property
    def ready(self):
+        """ Returns True if the disk is physically ready on the storage.
+
+        It needs at least 1 successfull deploy action.
+        """
        return self.activity_log.filter(activity_code__endswith="deploy",
-                                        succeeded__isnull=False)
--- a/circle/storage/models.py
+++ b/circle/storage/models.py
  
            self.disk = disk
  
+    class DiskIsNotReady(Exception):
+        """ Exception for operations that need a deployed disk.
+        """
+
+        def __init__(self, disk, message=None):
+            if message is None:
+                message = ("The requested operation can'T be performed on "