Avago Technologies General IP (singapore) Pte. Ltd.

Lsi Corporation

Anand Narayanamurthy

Horia Cristian Simionescu

Kapil Sundrani

James A Rizzo

Naveen Krishnamurthy

Robert L Sheffield

Adam Weiner

Rajeev Srinivasa Murthy

Robert L Sheffield Jr

Methods and structure within a storage controller for using region locks to efficiently divert an I/O request received from an attached host system to one of multiple processing stacks in the controller. A region lock module within the controller allows each processing stack to request a region lock for a range of block addresses of the storage devices. A divert-type lock request may be established to identify a range of block addresses for which I/O requests should be diverted to a particular one of the multiple processing stacks.

Methods and structure for using region locks to divert I/O requests in a storage controller having multiple processing stacks

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Bengaluru, India

Anand Narayanamurthy