Abstract: A NUMA-aware storage system including a first processing subsystem coupled to a first memory subsystem, and a second processing subsystem coupled to a second memory subsystem. A first NTB subsystem connected to the first processing subsystem presents itself as a first storage device, identifies first data transfer operations directed to the first memory subsystem and, in response, claims those first data transfer operations and provides them directly to the first processing subsystem. A second NTB subsystem connected to the second processing subsystem presents itself as a second storage device, identifies second data transfer operations directed to the second memory subsystem and, in response, claims those second data transfer operations and provides them directly to the second processing subsystem. A storage controller system receives a command from either the first or second processing subsystem via the first or second NTB subsystem and, in response, transmits that command to a storage system.

Abstract: A RAID storage-device-assisted parity data update system includes a first RAID primary data drive that DMA's second primary data from a host system, and XOR's it with first primary data to produce first interim parity data for a first data stripe. A second RAID primary data drive DMA's fourth primary data from the host system, and XOR's it with third primary data to produce second interim parity data for a second data stripe. A first RAID parity data drive DMAs the first interim parity data and XOR's it with first parity data to produce second parity data for the first data stripe that overwrites the first parity data. A second RAID parity data drive DMA's the second interim parity data and XOR's it with third parity data to produce fourth parity data for the second data stripe that overwrites the third parity data.

Abstract: A RAID storage-device-assisted deferred parity data update system includes a RAID primary data drive that retrieves second primary data via a DMA operation from host system, and XOR's it with first primary data to produce first interim parity data, which causes a RAID storage controller device to provide an inconsistent parity stripe journal entry in the host system. The RAID primary data drive then retrieves third primary data via a DMA operation from the host system, XORs it with the second primary data and the first interim parity data to produce second interim parity data. A RAID parity data drive retrieves the second interim parity data via a DMA operation, and XORs it with first parity data to produce second parity data that it uses to overwrite the first parity data, which causes the RAID storage controller device to remove the inconsistent parity stripe journal entry from the host system.

Abstract: A RAID proxy storage-device-assisted data update system includes a RAID parity data storage device and a first RAID primary data storage device without storage-device-assisted data update functionality, and a second RAID primary data storage device with storage-device-assisted data update functionality. The second RAID primary data storage device receives a command that identifies updated primary data for the first RAID primary data storage device and, in response, retrieves the updated primary data, current primary data from the first RAID primary data storage device, and current parity data from the RAID primary parity data storage device. The second RAID primary data storage device performs an XOR operation using the updated primary data, the current primary data, and the current parity data to generate updated parity data, transmits the updated primary data to the first RAID primary data storage device, and transmits the updated parity data to the RAID parity data storage device.

Abstract: A RAID storage multi-operation command system includes a RAID storage controller device that generates a multi-operation command including a multi-operation command role and a plurality of addresses, and transmits the multi-operation command, and also includes a RAID storage device that is coupled to the RAID storage controller device. The RAID storage device receives the multi-operation command from the RAID storage controller device, and identifies a plurality of operations that are associated in a database with the multi-operation command role included in the multi-operation command. The RAID storage device then performs the plurality of operations using the plurality of addresses included in the multi-operation command, which may include retrieving first data located in a first address, retrieving second data located in a second address, performing an XOR operation on the first and second data to produce third data, and writing the third data to one or more third addresses.

Abstract: A RAID data storage device direct communication system includes a first RAID data storage device that includes a first RAID data storage device controller having a first RAID data storage device function providing a second RAID data storage device submission queue in a first RAID data storage device memory subsystem, and a second RAID data storage device that includes a second RAID data storage device controller having a second RAID data storage device function providing a second RAID data storage device completion queue in a second RAID data storage device memory subsystem. The second RAID data storage device generates a command, transmits the command directly to first RAID data storage device and in the second RAID data storage device submission queue, and receives a completion message that is associated with the command directly from the first RAID data storage device and in the second RAID data storage device completion queue.

Abstract: A RAID storage controller storage-device-assisted data update system includes a RAID storage controller device coupled to a host system and RAID storage devices in a “look aside” RAID storage controller device configuration. Based on command(s) from the RAID storage controller device, a first RAID primary data storage device may perform a first DMA operation to access first primary data stored on the host system, and write the first primary data to its first buffer subsystem. The first RAID primary data storage device may then perform a first XOR operation using the first primary data stored in its first buffer subsystem and second primary data stored in its first storage subsystem in order to produce first interim parity data, and write the first interim parity data to its second buffer subsystem. The first RAID primary data storage device may then update the second primary data with the first primary data.

Abstract: A RAID storage controller storage-device-assisted data update system includes a RAID storage controller device coupled to a host system and RAID storage devices in a “look aside” RAID storage controller device configuration. Based on command(s) from the RAID storage controller device, a first RAID primary data storage device may perform a first DMA operation to access first primary data stored on the host system, and write the first primary data to its first buffer subsystem. The first RAID primary data storage device may then perform a first XOR operation using the first primary data stored in its first buffer subsystem and second primary data stored in its first storage subsystem in order to produce first interim parity data, and write the first interim parity data to its second buffer subsystem. The first RAID primary data storage device may then update the second primary data with the first primary data.

Abstract: A RAID storage-device-assisted parity data update system includes a first RAID primary data drive that DMA's second primary data from a host system, and XOR's it with first primary data to produce first interim parity data for a first data stripe. A second RAID primary data drive DMA's fourth primary data from the host system, and XOR's it with third primary data to produce second interim parity data for a second data stripe. A first RAID parity data drive DMAs the first interim parity data and XOR's it with first parity data to produce second parity data for the first data stripe that overwrites the first parity data. A second RAID parity data drive DMA's the second interim parity data and XOR's it with third parity data to produce fourth parity data for the second data stripe that overwrites the third parity data.

Abstract: A RAID storage-device-assisted deferred parity data update system includes a RAID primary data drive that retrieves second primary data via a DMA operation from host system, and XOR's it with first primary data to produce first interim parity data, which causes a RAID storage controller device to provide an inconsistent parity stripe journal entry in the host system. The RAID primary data drive then retrieves third primary data via a DMA operation from the host system, XORs it with the second primary data and the first interim parity data to produce second interim parity data. A RAID parity data drive retrieves the second interim parity data via a DMA operation, and XORs it with first parity data to produce second parity data that it uses to overwrite the first parity data, which causes the RAID storage controller device to remove the inconsistent parity stripe journal entry from the host system.

Abstract: A data-transfer-based RAID data update system includes a RAID storage controller device coupled to a host system and RAID storage devices. The RAID storage controller device receives a command that is associated with a data update on at least one of the RAID storage devices from the host system. The RAID storage controller device then determines, from a plurality of RAID data update techniques that are available to execute the command and perform the data update on the at least one of the RAID storage devices, a first RAID data update technique that is included in the plurality of RAID data update techniques and that requires the lowest number of data transfers to execute the command and perform the data update. The RAID storage controller device then causes the command to be performed using the first RAID data update technique to provide the data update.

Abstract: A RAID storage-device-assisted RMW system includes a RAID primary data drive that retrieves second primary data via a DMA operation from a host system, and XOR's it with its first primary data to produce first interim parity data that it writes via a DMA operation to a RAID parity data drive. The RAID parity data drive XOR's its first parity data and the first interim parity data to produce second parity data that overwrites the first parity data. The RAID parity data drive also performs GF operations on the first interim parity data and its second interim parity data and XOR's the results to produce interim Q data that it writes via a DMA operation to a RAID Q data drive. The RAID Q data drive XOR's its first Q data and the interim Q data to produce second Q data that overwrites the first Q data.

Abstract: A RAID storage-device-assisted deferred parity data update system includes a RAID primary data drive that retrieves second primary data via a DMA operation from host system, and XOR's it with first primary data to produce first interim parity data, which causes a RAID storage controller device to provide an inconsistent parity stripe journal entry in the host system. The RAID primary data drive then retrieves third primary data via a DMA operation from the host system, XORs it with the second primary data and the first interim parity data to produce second interim parity data. A RAID parity data drive retrieves the second interim parity data via a DMA operation, and XORs it with first parity data to produce second parity data that it uses to overwrite the first parity data, which causes the RAID storage controller device to remove the inconsistent parity stripe journal entry from the host system.

Abstract: A RAID storage multi-operation command system includes a RAID storage controller device that generates a multi-operation command including a multi-operation command role and a plurality of addresses, and transmits the multi-operation command, and also includes a RAID storage device that is coupled to the RAID storage controller device. The RAID storage device receives the multi-operation command from the RAID storage controller device, and identifies a plurality of operations that are associated in a database with the multi-operation command role included in the multi-operation command. The RAID storage device then performs the plurality of operations using the plurality of addresses included in the multi-operation command, which may include retrieving first data located in a first address, retrieving second data located in a second address, performing an XOR operation on the first and second data to produce third data, and writing the third data to one or more third addresses.

Abstract: A RAID storage multi-step command system includes a RAID storage system coupled to a RAID storage controller device. The RAID storage controller device identifies a RAID storage system configuration of the RAID storage system and, based on the RAID storage system configuration, generates a first multi-step command definition file for a first RAID storage device in the RAID storage system, and transmits it to the first RAID storage device. The first multi-step command definition file defines first steps that each include first operation(s). Subsequent to transmitting the first multi-step command definition file, the RAID storage controller device generates a first multi-step command that references the first multi-step command definition file and includes first parameter(s) for use in performing each first operation(s) included in the first steps defined by the first multi-step command definition file, and transmits the first multi-step command to the first RAID storage device.

Abstract: A RAID storage-device-assisted unavailable primary data/Q data rebuild system includes a RAID primary data drive that receives a RAID storage controller device command and DMA's first primary data to a RAID parity data drive. The RAID parity data drive receives a RAID storage controller device command and XORs its first parity data, the first primary data, and its second primary data to produce third primary data that it writes to its storage subsystem. The RAID parity data storage device then receives a RAID storage controller device command and performs GF and XOR operations on the first primary data, the second primary data, and the third primary data to produce second Q data, and DMA's the first Q data to a RAID Q data drive. The RAID Q data storage device receives a RAID storage controller device command and writes the first Q data to its storage subsystem.

Abstract: A RAID storage-device-assisted parity data update system includes a first RAID primary data drive that DMA's second primary data from a host system, and XOR's it with first primary data to produce first interim parity data for a first data stripe. A second RAID primary data drive DMA's fourth primary data from the host system, and XOR's it with third primary data to produce second interim parity data for a second data stripe. A first RAID parity data drive DMAs the first interim parity data and XOR's it with first parity data to produce second parity data for the first data stripe that overwrites the first parity data. A second RAID parity data drive DMA's the second interim parity data and XOR's it with third parity data to produce fourth parity data for the second data stripe that overwrites the third parity data.

Abstract: A data-transfer-based RAID data update system includes a RAID storage controller device coupled to a host system and RAID storage devices. The RAID storage controller device receives a command that is associated with a data update on at least one of the RAID storage devices from the host system. The RAID storage controller device then determines, from a plurality of RAID data update techniques that are available to execute the command and perform the data update on the at least one of the RAID storage devices, a first RAID data update technique that is included in the plurality of RAID data update techniques and that requires the lowest number of data transfers to execute the command and perform the data update. The RAID storage controller device then causes the command to be performed using the first RAID data update technique to provide the data update.

Abstract: A RAID storage controller storage-device-assisted data update system includes a RAID storage controller device coupled to a host system and RAID storage devices in a “look aside” RAID storage controller device configuration. Based on command(s) from the RAID storage controller device, a first RAID primary data storage device may perform a first DMA operation to access first primary data stored on the host system, and write the first primary data to its first buffer subsystem. The first RAID primary data storage device may then perform a first XOR operation using the first primary data stored in its first buffer subsystem and second primary data stored in its first storage subsystem in order to produce first interim parity data, and write the first interim parity data to its second buffer subsystem. The first RAID primary data storage device may then update the second primary data with the first primary data.

Abstract: A RAID storage-device-assisted data update system includes a RAID storage controller coupled to first RAID storage devices each including respective first RAID storage subsystems. Each first RAID storage devices receives a command from the RAID storage controller that identifies a second RAID buffer subsystem as a target memory location and, in response, retrieves respective first RAID storage device data from its respective first RAID storage subsystem and performs DMA operations to provide that first RAID storage device data on the second RAID buffer subsystem. A second RAID storage device that includes the second RAID buffer subsystem and a second RAID storage subsystem receives a command from the RAID storage controller and, in response, performs an XOR operation using the first RAID storage device data in the second RAID buffer subsystem to produce update data that it stores in its second RAID storage subsystem.