公开(公告)号：US20160306820A1

公开(公告)日：2016-10-20

申请号：US15197452

申请日：2016-06-29

Applicant: CommVault Systems, Inc.

Inventor： Saurabh Agrawal ,  Manoj Kumar Vijayan

IPC: G06F17/30 ,  G06F11/14

Abstract: An information management system provides a data deduplication system that uses a primary table, a deduplication chunk table, and a chunk integrity table to ensure that a referenced deduplicated data block is only verified once during the data verification of a backup or other replication operation. The data deduplication system may reduce the computational and storage overhead associated with traditional data verification processes. The primary table, the deduplication chunk table, and the chunk integrity table, all of which are stored in a deduplication database, can also ensure synchronization between the deduplication database and secondary storage devices.

公开(公告)号：US20140201171A1

公开(公告)日：2014-07-17

申请号：US14152549

申请日：2014-01-10

Applicant: CommVault Systems, Inc.

Inventor： Manoj Kumar Vijayan ,  Jaidev Oppath Kochunni ,  Saurabh Agrawal ,  Abhishek Narulkar

IPC: G06F17/30

CPC classification number: G06F17/30156 ,  G06F11/1451 ,  G06F11/1453 ,  G06F2201/80 ,  G06F2201/84

Abstract: A high availability distributed, deduplicated storage system according to certain embodiments is arranged to include multiple deduplication database media agents. The deduplication database media agents store signatures of data blocks stored in secondary storage. In addition, the deduplication database media agents are configured as failover deduplication database media agents in the event that one of the deduplication database media agents becomes unavailable.