Patent ID: 6907506

Claim:
A storage management device for managing storage areas of a mass storage, it being possible by means of the mass storage to store concatenation data in management storage areas, which define a concatenation of data storage areas in which associated information data can be stored by the mass storage, having storage control means for determining data storage areas identified by the concatenation data as unassigned, and for determining modified concatenation data, which identify a concatenation modified by writing information data to be stored to unassigned data storage areas, and having buffer storage means for buffer storing the modified concatenation data, and having writing means for writing the information data to be stored to unassigned data storage areas determined byte storage control means and for writing all the modified concatenation data to a first concatenation subarea and a to second concatenation subarea of the management storage area, wherein; backup means are provided for determining backup data identifying the modified concatenation data to be written, and in that the writing means are designed, before writing the modified concatenation data to the first and the second concatenation subarea, to write the backup data to a backup subarea of the management storage area, and in that the backup means are designed, following an unscheduled interruption in writing the modified concatenation data, to determine using the backup data whether the concatenation data stored in the first concatenation subarea or in the second concatenation subarea form valid concatenation data.