Abstract: A method for use in a computing device, the method comprising: detecting a first command to copy data to a remote system, the first command including a scatter-gather list (SGL) that identifies the data that is desired to be copied, the SGL including a plurality of entries that identify a plurality of memory regions, each of the plurality of entries identifying a different one of the plurality of memory regions; generating metadata for the SGL, for each of the data blocks in the plurality of memory regions, wherein the metadata identifies at least one of: (i) a location where a respective integrity field for the data block is stored, and (ii) a respective integrity operation that is required to be performed on the data block; registering the plurality of entries and the metadata under a key; generating a command capsule that includes the key; and transmitting the command capsule.

Abstract: A storage array that uses NVMEoF to interconnect compute nodes with NVME SSDs via a fabric and NVME offload engines implements flow control based on transaction latency. Transaction latency is the elapsed time between the send side completion message and receive side completion message for a single transaction. Counts of total transactions and over-latency-limit transactions are accumulated over a time interval. If the over limit rate exceeds a threshold, then the maximum allowed number of enqueued pending transactions is reduced. The maximum allowed number of enqueued pending transactions is periodically restored to a default value.

Abstract: A storage array that uses NVMEoF to interconnect compute nodes with NVME SSDs via a fabric and NVME offload engines implements flow control based on transaction latency. Transaction latency is the elapsed time between the send side completion message and receive side completion message for a single transaction. Counts of total transactions and over-latency-limit transactions are accumulated over a time interval. If the over limit rate exceeds a threshold, then the maximum allowed number of enqueued pending transactions is reduced. The maximum allowed number of enqueued pending transactions is periodically restored to a default value.