ERROR CORRECTION CODING REDUNDANCY BASED DATA HASHING

摘要

Storage infrastructures and methods that generate hash values based on error correction codes. A system is provided that includes: a code retrieval system implemented on a host having logic for issuing a redundancy read command to a storage system to retrieve a redundancy code for an identified data block; and a hashing system implemented on the host for hashing the redundancy code to generate a hash value based on the redundancy code. A storage system is also provided that includes: a memory for storing data blocks and associated redundancy codes; and a controller having: an input/output for receiving a hash value read command for a specified data block from a host and returning a hash value; a decoding system that extracts a redundancy code associated with the specified data block; and an in-memory hashing system for computing a hash operation on the redundancy code.

主权项

1. A storage infrastructure that generates hash values based on a coding redundancy, comprising:
a code retrieval system implemented on a host having logic for issuing a redundancy read command to a storage system to retrieve a coding redundancy for an identified data block; and a hashing system implemented on the host for hashing the coding redundancy to generate a hash value based on the coding redundancy.