Emc IP Holding Company LLC

Thomas Mackintosh

James Marriot Guyer

Jason J Duquette

Earl Medeiros

Mirrored volatile memory in a storage system is configured with a dual cast region of addresses. Buffers in the dual cast region are allocated for data associated with a received Write IO. A host IO device associates the dual cast addresses with the data. A switch or CPU complex recognizes the dual cast addresses associated with the data and, in response, creates and sends a first copy of the data to a first volatile memory mirror and creates and sends a second copy of the data to a second volatile memory mirror. The second copy may be sent via PCIe NTB between switches or CPU complexes.

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Waltham, MA, United States of America

Thomas Mackintosh