Data storage method, (verification of data integrity in the storage system) data storage system and a program (a part of the disclosure of copyright and trademark registration display this patent document contains content that is subject to copyright protection. Honjo voters, the facsimile copy product by any one of the patent document or patent disclosure document, copied material but no objection as long as that is the world emerged as a patent file or records of the Patent and Trademark Office, all of the other cases Copyright to fully reserves.) (trademark for certain marks referred to herein, of third parties not affiliated or partnered with the applicant or its assignee, that of the common law, or has been registered may be. The reason for using these marks, it is to provide a feasible disclosure by way of example, it is interpreted so as to limit the scope of the present invention to relate to such a mark not a Rubeki it.)

摘要

A data storage method comprises storing first data in at least a first data chunk, wherein the first data chunk is a logical representation of one or more sectors on at least a first disk drive in a storage system; storing first metadata, associated with the first data, in at least a first appendix, wherein the first appendix is a logical representation of a sector region on at least the first disk drive in the storage system, and wherein the first metadata comprises first atomicity metadata (AMD) and first validity metadata (VMD) associated with the first data; and storing a copy of the first VMD for the first data in at least one low latency non-volatile storage (LLNVS) device.