Patent ID: 8538932
Filing Date: 2013-09-17
Classification: G06F,G11B,H04L

Abstract:
1. A data storage system configured for storing at least one logical data object, said logical data object having a logical identifier, said system comprising: a control configured to assign an unique WORM (Write Once Read Many) identifier to said logical data object, said unique WORM identifier derived from nonce fields so as to be probabilistically unlikely to be generated twice for a same said logical identifier, and to store said unique WORM identifier as associated with said logical identifier, in a database maintained by said control so as to be persistent; and data storage configured to write said logical data object, identified by said logical identifier, together with a header with said unique WORM identifier; wherein said control, in order to allow said logical data object to be accessed externally to said control, is configured to require matching said unique WORM identifier in said header of a logical data object to said unique WORM identifier of said persistent database for said logical object; and wherein said unique WORM identifier is formed of a checksum hash value related to said nonce fields comprising at least said logical identifier of said logical data object, and an incrementing token.