Xun Tian

US Patent:

8234465, Jul 31, 2012

Filed:

Dec 27, 2006

Appl. No.:

11/616342

Inventors:

Karthikeyan Srinivasan - Westborough MA, US
Royce T. Dean - Apex NC, US
Xun Tian - Apex NC, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G06F 12/16

US Classification:

711162, 711114, 711161, 714 61, 714 623

Abstract:

A system, architecture for initializing and utilizing a mirrored Network Attached Storage (NAS) system is described. The architecture includes a plurality of processing layers that define and control the operation and relationship of component groups in a primary NAS and associated component groups in a secondary NAS. The groups may include, for example, file server groups and disk device groups. The processing layers may include an execution layer, a transaction layer and a storage layer. The modularized architecture of the invention allows NAS systems to be easily apportioned into logical groups at varying levels of granularity with varying relationships. As a result, the component groups are abstracted from their underlying physical characteristics and constraints, thereby enabling complex processes such as initialization, activation and restoration to be performed using simple commands at a command line interface.