A method for checking the availability and integrity of distributed data objects

摘要

The present invention stores N data words (d1,..., DN) stored in a distributed manner on a number of servers (S1,..., Sn) connected to each other via a network. A method for checking the availability and integrity of a data object (d) having a data object (d) for a distributed storage of the data object (d) of the server (S1, ..., Sn) Are fragmented and a number of fragments (f1,..., Fn) are generated, and each fragment (f1,..., Fn) is sent to each server (S1,..., Sn). In order to verify the availability and integrity of the fragment (f1,..., Fn) stored and available for retrieval there and stored in the server (S1,..., Sn), same A random number (R) is transmitted from the audit unit (A) to the servers (S1,..., Sn), and each of the fragments (f1,..., Sn) is transmitted by the servers (S1,. fn) are respectively modified by applying the random number (R) to generate checksums (p1,..., pn), and the checksums (p1,. , Sent to the audit unit (A), where the individual checksums (p1,..., Pn) sent by the servers (S1,..., Sn) are consistent. The present invention relates to a method for checking the availability and completeness of the data if it is checked by using the consistency check. [Selection] Figure 3