Automatic fault tolerance in a computing system providing concurrent access to shared computing resource objects

US10474532B1 · kind B1 · utility

Assignee

• EMC IP Holding Company LLC · US

Inventors

• Amitava Roy · Lexington, US
• Rajesh Kumar Gandhi · Shrewsbury, US
• Daniel S. Keefe · Walpole, US
• Norman Speciner · Medway, US
• Lorenzo Bailey · Framingham, US
• Hongxin Zhang · Zhejiang, CN

Key dates

• Filing date: Jul 28, 2017
• Grant date: Nov 12, 2019
• Expiry date: Jan 5, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/526
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Techniques are disclosed for provided automatic fault tolerance in data storage systems and other computer systems managing access to shared computing resources using the construct of a resource instance manager together with an architecture for designing and implementing task-oriented state-based commands for accessing the shared computing resources. A set of resource instance managers respond to all commands requesting access to a set of respective shared resources. Access to each shared resource is managed by a unique resource instance manager for that resource which maintains a consistent state for that shared resource. When commands are designed appropriately, the system can be restored using a system state history maintained transparently by a system-provided application program interface.