System and method for stored data archive verification

• US 20050246376A1
• Filed: 11/15/2004
• Published: 11/03/2005
• Est. Priority Date: 11/13/2003
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Lu, Jun, Amarendran, Arun
• Granted Patent: US 7,440,982 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1448 Management of the data involved in backup or backup restore
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99953 Recoverability
• CPC Class Codes: Y10S 707/99955 Archiving or backup

Abstract

Methods and systems are described for verifying stored data by receiving a first set of metadata associated with a first set of stored data, generating a second set of metadata associated with a second set of stored data which is associated with the first set of stored data, and comparing the first set of metadata and second set of metadata. Alternatively, the storage system can also generate a first set of metadata associated with a first set of stored data, generate a second set of stored data which is a copy of the first set of stored data, generate a second set of metadata associated with the second set of stored data, and compare the first set of metadata and the second set of metadata.

Claims

1. A method for verifying stored data in a storage management system, the method comprising:

performing a first storage operation on a first set of stored data,

wherein the first storage operation generates a first set of metadata associated with the first set of stored data and a second set of stored data associated with the first set of stored data;

generating a second set of metadata associated with the second set of stored data; and

comparing the first set of metadata and the second set of metadata.

2. The method of claim 1 wherein generating the second set of metadata comprises performing a second storage operation on the second set of stored data.

3. The method of claim 2 wherein the first storage operation and the second storage operation are the same type of storage operation.

4. The method of claim 2 wherein the second storage operation is a partial storage operation.

5. The method of claim 1, wherein the first set of metadata and the second set of metadata are chunk headers.

6. The method of claim 1, further comprising:

initiating a backup of the first set of stored data when the comparing of the first set of metadata and the second set of metadata indicates that the first set of metadata and the second set of metadata are not equivalent.