SYSTEM AND METHOD FOR CREATING A DE-DUPLICATED DATA SET AND PRESERVING METADATA FOR PROCESSING THE DE-DUPLICATED DATA SET

• US 20110218973A1
• Filed: 03/02/2011
• Published: 09/08/2011
• Est. Priority Date: 03/02/2010
• Status: Abandoned Application

• Current Assignee: LDiscovery LLC
• Original Assignee: Renew Data Corporation (LDiscovery LLC)
• Inventors: Marchand, Harold, Pratt, Christopher K., Pendlebury, Kenneth C., Jones, Terence C.
• Application Number:
  US13/039,269
• Publication Number:
  US 20110218973A1
• Time in Patent Office: Days
• US Class Current: 707/692
• CPC Class Codes: G06F 16/152 using file content signatures, e.g. hash values
• CPC Class Codes: G06F 16/1748 De-duplication implemented within the file system, e.g. based on file segments de-duplication techniques in storage systems for the management of data blocks G06F3/0641

Abstract

The present invention provides a system and method for de-duplicating a large heterogeneous stock of data and collecting metadata associated with that data. Additionally, the system and method provide a means for retrieving data items based on specific criteria that can be identified in the collected metadata.

Claims

1. A method for de-duplicating and storing data, comprising the steps of:

reading the contents of a data file;

generating a hash value for the data file;

comparing the hash value with existing hash values;

storing the data file if its hash value does not match an existing hash value;

extracting metadata from the stored data file; and

storing the metadata and associating the metadata with the data file'"'"'s hash value such that the metadata can be queried to identify the corresponding data file.

2. A system for de-duplicating and storing data, comprising:

at least one pod adapted to read the content of a data file and generate a hash value corresponding to the data file;

a file system in communication with the at least one pod, adapted to store the data file and its hash value if its hash value does not match the hash value of a data file already stored in the file system; and

a database system in communication with the at least one pod and the file system, wherein the database system is adapted to receive and process metadata corresponding to the data file stored on the file system, and wherein the database stores the metadata and associates the metadata with the data file'"'"'s hash value such that the metadata can be queried to identify the corresponding data file.