Method of making protected changes to data stored in a...

Details Method of making protected changes to data stored in a... Method of making protected changes to data stored in a...

G - Physics

06

F

G06F 17/30 (2006.01) G06F 11/14 (2006.01) H04L 12/16 (2006.01)

Patent

CA 2274197

To change data in a database (DB) in such a manner that in case of a disturbance the database can be restored to an initial state, it is proposed to temporarily store the block numbers (BNO) of free memory blocks (BL*) in a nonvolatile semiconductor memory (NVM). In case of a disturbance, the free memory block (BL*) continues to be managed as a free memory block. In case of an undisturbed, successful change to the data, the memory block (BL) in which the old data were stored is deallocated. The invention is particularly suited for use in database systems for network elements of a digital communications network, particularly for crossconnects of an SDH network (SDH = Synchronous Digital Hierarchy).

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