Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes storage drives each comprising a PCIe interface, and configured to store data and retrieve the data stored on associated storage media responsive to data transactions received over a switched PCIe fabric. The data storage system includes processors configured to each manage only an associated subset of the storage drives over the switched PCIe fabric. A first processor is configured to identify first data packets received over a network interface associated with the first processor within a network buffer of the first processor as comprising a storage operation associated with at least one of the plurality of storage drives managed by a second processor, and responsively transfer the first data packets into a network buffer of the second processor.

Abstract: Data storage systems are provided that include network interfaces each configured to receive storage operations issued by one or more host systems for handling by the data storage system, and transfer the storage operations over a Peripheral Component Interconnect Express (PCIe) fabric. The data storage systems also include processors configured to receive the storage operations over the PCIe fabric, process properties of the storage operations against allocation information of a shared PCIe address space to determine target processors to handle the storage operations, and selectively transfer ones of the storage operations to the target processors for handling of the storage operations with associated storage drives coupled over the PCIe fabric. The data storage systems also identifie failed ones of the processors and responsively initiate backup ones of the processors to handle portions of the shared PCIe address space handled by the failed ones of the processors.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes a plurality of storage drives each comprising a Peripheral Component Interconnect Express (PCIe) interface, and configured to store data and retrieve the data stored on associated storage media responsive to storage operations. The data storage system includes one or more processing modules comprising one or more processors communicatively coupled to the plurality of storage drives over a PCIe fabric comprised of one or more PCIe switches. The processors are configured to share a PCIe address space associated with the PCIe fabric for transfer of the storage operations to appropriate ones of the processors that manage ones of the plurality of storage drives.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes storage drives each comprising a Peripheral Component Interconnect Express (PCIe) interface, and configured to store data and retrieve the data stored on associated storage media responsive to data transactions. The data storage system also includes processing modules each comprising one or more processors, where a first processor is configured to receive data transactions and transfer the data transactions for delivery to associated ones of the storage drives. A monitoring system is configured to identify when the first processor fails, and responsively instruct a second processor to handle further data transactions directed to storage drives associated with the first processor.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes a plurality of storage drives each comprising a Peripheral Component Interconnect Express (PCIe) interface, and configured to store data and retrieve the data stored on associated storage media responsive to storage operations. The data storage system includes one or more processing modules comprising one or more processors communicatively coupled to the plurality of storage drives over a PCIe fabric comprised of one or more PCIe switches. The processors are configured to share a PCIe address space associated with the PCIe fabric for transfer of the storage operations to appropriate ones of the processors that manage ones of the plurality of storage drives.

Abstract: Various computer peripheral cards, devices, systems, methods, and software are provided herein. In one example, a storage card insertable into a host system includes a plurality of storage device connectors in a stacked arrangement, each configured to mate with associated storage devices and carry Peripheral Component Interconnect Express (PCIe) signaling for the associated storage devices. The storage card also includes a PCIe switch circuit configured to communicatively couple the PCIe signaling of the plurality of storage device connectors and PCIe signaling of a host connector of the storage card, where the PCIe switch circuit is configured to receive storage operations over the PCIe signaling of the host connector of the storage card and transfer the storage operations for delivery over the PCIe signaling of selected ones of the plurality of storage device connectors.

Abstract: Various computer peripheral cards, devices, systems, methods, and software are provided herein. In one example, a storage card insertable into a connector of a host system includes a plurality of M.2 device connectors in a stacked arrangement comprising a first horizontal row of one or more M.2 device connectors positioned vertically higher in the stacked arrangement than a second horizontal row of one or more M.2 device connectors, the plurality of M.2 device connectors each configured to mate with associated M.2 devices. The storage card also includes a Peripheral Component Interconnect Express (PCIe) switch circuit configured to communicatively couple the plurality of M.2 device connectors and a connector of the storage card, wherein the PCIe switch circuit is configured to receive storage operations over the connector of the storage card and transfer the storage operations for delivery to ones of the plurality of M.2 device connectors over associated PCIe interfaces.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage platform includes one or more data storage modules each comprising storage drives coupled over a Peripheral Component Interconnect Express (PCIe) fabric with at least one processing module that receives storage operations directed to the one or more data storage modules over one or more network interfaces. The processing module is configured to assign service levels in a queue to the storage operations that are received over the one or more network interfaces. Based at least on the service levels, the processing module is configured to service the storage operations from the queue with the one or more data storage modules over the PCIe fabric.

Abstract: Systems, methods, apparatuses, and software for networked data systems are provided herein. In one example, a networked data processing system is presented. The system includes a processing system configured to execute an operating system that comprises a network module for handling data frames received over one or more network interfaces of the networked data processing system, the data frames directed to one or more applications. The network module is configured to establish a plurality of data buffers individually associated with application threads of the one or more applications, store associated ones of the data frames for the application threads in the data buffers as the data frames are processed through a network stack of the networked data processing system, and maintain data exclusivity locks for the plurality of data buffers and individually associate the data exclusivity locks with the application threads.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes at least one storage drive and at least one processing module coupled over a Peripheral Component Interconnect Express (PCIe) fabric. The data storage system includes a first processing module in a first storage assembly configured to receive a storage operation for a storage drive managed by a second processing module in a second storage assembly. The first processing module is configured to identify the second processing module as managing the storage drive associated with the storage operation and responsively transfer the storage operation over a tunneled network connection for handling by the second processing module of the second storage assembly.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes processing systems configured to receive storage operations for storage drives coupled over a communication fabric. The data storage system includes a control processor configured to establish a timer synchronization signal and distribute the timer synchronization signal to the processing systems. Each of the processing systems is configured to assign timestamps to received storage operations based on a timestamp counter synchronized among the processing systems using the timer synchronization signal. The processing systems are configured to order committing of the storage operations to the storage drives based at least on the timestamps associated with the storage operations.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes storage drives each comprising a Peripheral Component Interconnect Express (PCIe) interface, and configured to store data and retrieve the data stored on associated storage media responsive to data transactions. The data storage system also includes processing modules each comprising one or more processors, where a first processor is configured to receive data transactions and transfer the data transactions for delivery to associated ones of the storage drives. A monitoring system is configured to identify when the first processor fails, and responsively instruct a second processor to handle further data transactions directed to storage drives associated with the first processor.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes storage drives each comprising a PCIe interface, and configured to store data and retrieve the data stored on associated storage media responsive to data transactions received over a switched PCIe fabric. The data storage system includes processors configured to each manage only an associated subset of the storage drives over the switched PCIe fabric. A first processor is configured to identify first data packets received over a network interface associated with the first processor within a network buffer of the first processor as comprising a storage operation associated with at least one of the plurality of storage drives managed by a second processor, and responsively transfer the first data packets into a network buffer of the second processor.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes a first processor configured to establish a network connection with an external system, and receive first storage operations transferred by the external system over the network connection, the first storage operations related to storage and retrieval of data on at least one storage drive. The first processor is configured to transfer information describing the network connection for delivery to at least a second processor. The second processor is configured to identify when the first processor has failed, responsively establish the network connection with the external system based at least on the information describing the network connection, and receive second storage operations transferred by the external system over the network connection.

Abstract: Systems, methods, apparatuses, and software for data storage systems are provided herein. In one example, a data storage system is provided that includes a plurality of storage drives each comprising a Peripheral Component Interconnect Express (PCIe) interface, and configured to store data and retrieve the data stored on associated storage media responsive to storage operations. The data storage system includes one or more processing modules comprising one or more processors communicatively coupled to the plurality of storage drives over a PCIe fabric comprised of one or more PCIe switches. The processors are configured to share a PCIe address space associated with the PCIe fabric for transfer of the storage operations to appropriate ones of the processors that manage ones of the plurality of storage drives.