Hewlett-Packard Development Company, L.p.

3Pardata, Inc.

3Par Inc.

Jeffrey A Price

Ashok Singhal

David J Broniarczyk

George R Cameron

George C Cameron

The present disclosure provides a method for processing a storage operation in a system with an added level of storage caching. The method includes receiving, in a storage cache, a read request from a host processor that identifies requested data and determining whether the requested data is in a cache memory of the storage cache. If the requested data is in the cache memory of the storage cache, the requested data may be obtained from the storage cache and sent to the host processor. If the requested data is not in the cache memory of the storage cache, the read request may be sent to a host bus adapter operatively coupled to a storage system. The storage cache is transparent to the host processor and the host bus adapter.

Storage caching

A node controller for a data storage system having at least one node provides access to a data storage facility. The node controller is distinct from a computer-memory complex of the node. The node controller provides overall control for transferring data through the node.

Node controller for a data storage system

A data storage system includes a plurality of nodes for providing access to a data storage facility. Each node has a computer-memory complex to provide general purpose computing for the node, a node controller to control data transfers through the respective node, and a cluster memory to buffer data for the data transfers. A plurality of communication paths interconnect the nodes, with a separate communication path provided for each two nodes of the data storage system.

Growing community of inventors

Pleasanton, CA, United States of America

Jeffrey A Price