Abstract: Methods and systems for processing input/output (“I/O”) requests in a networked storage environment are disclosed. One method included polling, by a processor, a receive queue at a first polling rate to identify I/O requests received by the receive queue to read data from or write data to a storage device; determining, by the processor that a hit rate has reached a threshold value, the hit rate indicating a number of pending I/O requests at the receive queue, in response to the receive queue being polled at the first polling rate; and modifying, by the processor, the first polling rate to a second polling rate, in response to the hit rate reaching the threshold value.

Abstract: Methods and systems for processing input/output (“I/O”) requests are disclosed. One method includes identifying, a the target, a granular size to split a write request into a plurality of write requests, based on utilization of a processor of the target configured to process input/output (I/O) requests, the granular size indicating a number of the plurality of write requests; generating, by the target, a plurality of read requests to a storage server, each read request corresponding one of the plurality of write requests; issuing, by the target, the plurality of write requests to a storage device controller, in response to receiving data for the plurality of read requests from the storage server; and transmitting, by the target, a completion notification indicating completion of the write request to the storage server, in response to the storage device controller writing data for each of the plurality of write requests.

Abstract: Methods and systems for processing input/output (“I/O”) requests are disclosed. One method includes identifying, a the target, a granular size to split a write request into a plurality of write requests, based on utilization of a processor of the target configured to process input/output (I/O) requests, the granular size indicating a number of the plurality of write requests; generating, by the target, a plurality of read requests to a storage server, each read request corresponding one of the plurality of write requests; issuing, by the target, the plurality of write requests to a storage device controller, in response to receiving data for the plurality of read requests from the storage server; and transmitting, by the target, a completion notification indicating completion of the write request to the storage server, in response to the storage device controller writing data for each of the plurality of write requests.

Abstract: Methods and systems for processing input/output (“I/O”) requests are disclosed. One method includes identifying, a the target, a granular size to split a write request into a plurality of write requests, based on utilization of a processor of the target configured to process input/output (I/O) requests, the granular size indicating a number of the plurality of write requests; generating, by the target, a plurality of read requests to a storage server, each read request corresponding one of the plurality of write requests; issuing, by the target, the plurality of write requests to a storage device controller, in response to receiving data for the plurality of read requests from the storage server; and transmitting, by the target, a completion notification indicating completion of the write request to the storage server, in response to the storage device controller writing data for each of the plurality of write requests.

Abstract: Methods and systems for processing input/output (“I/O”) requests in a networked storage environment are disclosed. One method included polling, by a processor, a receive queue at a first polling rate to identify I/O requests received by the receive queue to read data from or write data to a storage device; determining, by the processor that a hit rate has reached a threshold value, the hit rate indicating a number of pending I/O requests at the receive queue, in response to the receive queue being polled at the first polling rate; and modifying, by the processor, the first polling rate to a second polling rate, in response to the hit rate reaching the threshold value.

Abstract: Methods, non-transitory machine readable media, and computing devices that use extended physical region page (PRP) lists to improve storage device performance are disclosed. With this technology, a PRP list is generated that includes pointers retrieved from a scatter/gather list (SGL) for memory buffers representing data segments associated with a storage operation. The PRP list is extended to include a pointer to an allocated memory page configured to store metadata segments represented by other memory buffers referenced by other pointers in the SGL. A command request that includes the extended PRP list is submitted to a storage device for execution of the storage operation. With this technology, storage operations are advantageously enabled for non-volatile memory express (NVMe) solid-state drive (SSDs), for example, that do not support SGL transfers.

Abstract: Methods, non-transitory machine readable media, and computing devices that use extended physical region page (PRP) lists to improve storage device performance are disclosed. With this technology, a PRP list is generated that includes pointers retrieved from a scatter/gather list (SGL) for memory buffers representing data segments associated with a storage operation. The PRP list is extended to include a pointer to an allocated memory page configured to store metadata segments represented by other memory buffers referenced by other pointers in the SGL. A command request that includes the extended PRP list is submitted to a storage device for execution of the storage operation. With this technology, storage operations are advantageously enabled for non-volatile memory express (NVMe) solid-state drive (SSDs), for example, that do not support SGL transfers.

Abstract: Methods and systems for a storage environment are provided. A policy for an input/output (I/O) stream having a plurality of I/O requests for accessing storage at a storage device of the storage sub-system is translated into flow attributes so that the I/O stream can be assigned to one of a plurality of queues maintained for placing I/O requests based on varying priorities defined by set polices. When an I/O request for the associated policy is received by the storage sub-system; the storage sub-system determines a flow attribute associated with the I/O request and the policy; selects a queue for staging the I/O request, such that the selected queue is of either higher priority than what is indicated by the flow attribute or at least of a same priority as indicated by the flow attribute; and allocates storage sub-system resource for processing the received I/O request.

Abstract: Methods and systems for a storage environment are provided. A policy for an input/output (I/O) stream having a plurality of I/O requests for accessing storage at a storage device of the storage sub-system is translated into flow attributes so that the I/O stream can be assigned to one of a plurality of queues maintained for placing I/O requests based on varying priorities defined by set polices. When an I/O request for the associated policy is received by the storage sub-system; the storage sub-system determines a flow attribute associated with the I/O request and the policy; selects a queue for staging the I/O request, such that the selected queue is of either higher priority than what is indicated by the flow attribute or at least of a same priority as indicated by the flow attribute; and allocates storage sub-system resource for processing the received I/O request.