Netapp, Inc.

Allen E Tracht

George Totolos, Jr

Curtis Anderson

Tabriz Holtz

Peter Frank Corbett

Richard Parvin Jernigan, Iv

Daniel John Kolor

W Leo Rollins

One or more techniques and/or systems are provided for multicast transport configuration, for multicast transport, and/or for fault policy implementation. In an example, a multicast component may receive a data copy request from an application to copy data to multiple destinations. A scheduler component may create a transport schedule specifying an order with which to facilitate data copy operations across transports, such as heterogeneous transports, to the destinations. A dispatcher component may apply application specified transport modifiers to the data copy operations (e.g., a modification to a quality of service for a transport). The dispatcher component may facilitate the data copy operations and provide operation result information to a policy agent. The policy agent may provide notifications of data copy operation statuses from the operation result information and/or may implement a fault policy (e.g., a retry on a different transport) for a data copy operation that experienced a fault.

Multicast transport

Multicast transport configuration

Fault policy implementation

A first device port and a second device port are connected using a first cable and a second cable. The first device port and the second device port use a divisible number of lanes, X for communication. The first cable uses X' lanes, where X&#x2032; is less than X. The second cable uses X-X&#x2032; lanes, where X-X&#x2032; is also less than X. If the first cable is disconnected or fails, then the second cable is used after a failover operation.

Device connections and methods thereof

A technique for efficiently preserving the ordering of data being written to a nonvolatile memory through a subsystem of a network storage system in the event of a power disruption, where the subsystem does not inherently guarantee that the ordering of the data will be preserved. The subsystem can be, for example, a memory controller hub. During normal operation of the system, data is written to the nonvolatile memory without flushing the data to the nonvolatile memory. In response to a power disruption in the system, data sources in the system that can initiate write transactions destined for the nonvolatile memory are inhibited from initiating write transactions destined for the nonvolatile memory, and pending write data within the subsystem is allowed to be committed to the nonvolatile memory. The nonvolatile memory is then placed into a self-refresh state.

Efficient preservation of the ordering of write data within a subsystem that does not otherwise guarantee preservation of such ordering

Provided is a method and system for data allocation within a storage system architecture. One or more nodes of the storage system architecture provides access to striped data stored on a striped volume set. Each node can store a volume of the striped volume set. Further, the striped volume set is identified by a striping table. When modifying the storage system architecture, such as adding a volume to, or removing a volume from, the striped volume set, the striping table is rearranged to accurately identify the location of striped data on the striped volume set. At least one restriping process implemented on the striping table affects the volume utilization efficiency, hot-spotting behavior, and distribution efficiency of the striped volume set.

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Fox Chapel, PA, United States of America

Allen E Tracht