Qlogic Corporation

Normin A Emralino

Ajmer Singh

Shishir Shah

Anurag Verma

Methods and systems for managing logical storage object reservation requests are provided. A controller of a storage array having a storage device for storing information on behalf of the logical storage object communicates with a first adapter via a network connection. The controller grants ownership of the logical storage object to the first adapter by the controller. A second adapter that interfaces with the first adapter is notified by the first adapter regarding the granted ownership. The second adapter is configured to send a request for reserving the logical storage object to the first adapter, where the second adapter sends the request on behalf of an application for reading, writing or both reading and writing at the storage space using the logical storage object. The first adapter receives and processes the request.

Method and system for managing storage reservation

Methods and systems for automatically creating a cluster are provided. The method includes discovering at least a first and a second intelligent storage adapter, determining if the first or the second intelligent storage adapter is operating within a cluster, and when neither the first or the second intelligent storage adapter are a part of any cluster, then automatically generating a cluster with a unique identifier and assigning one of the first or the second intelligent storage adapters as a master of the cluster.

Methods and systems for automatically adding intelligent storage adapters to a cluster

A system having a first computing device interfacing with a first adapter and a second computing device interfacing with a second adapter, where the first adapter and the second adapter operate within a cluster is provided. The first adapter processes an I/O request, when the first adapter is a cache owner of a logical entity presented to the first computing device, otherwise the request is sent to the second adapter by a storage protocol controller of the first adapter and the second adapter as the cache owner of the logical entity processes the request.

Intelligent adapter for maintaining cache coherency

Method and system for processing a read request are provided. The first adapter receives the read request from a client to read data using a logical object managed by a second adapter. The first adapter is configured to generate a vendor unique command descriptor block for the second adapter to obtain the data and write the data at a location specified by the read request. The second adapter is configured to retrieve the data from a storage location specified by the logical object and writing the data at the location specified by the read request; and notifies the first adapter after writing the data.

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Huntington Beach, CA, United States of America

Normin A Emralino