Front End Traffic Handling In Modular Switched Fabric Based Data Storage Systems

A method of operating a data storage system, the method comprising:

• in a first processor, receiving data packets comprising storage operations over a network interface associated with the first processor;
• in the first processor, identifying when ones of the storage operations are directed to storage devices managed by a second processor coupled to the first processor over a Peripheral Component Interconnect Express (PCIe) fabric;
• and
• in the first processor, transferring over the PCIe fabric associated data packets comprising the ones of the storage operations into a network buffer of the second processor for handling of the ones of the storage operations by the second processor with one or more storage devices coupled over the PCIe fabric.

A data storage control system, comprising:

• one or more computer readable storage media;
• a processing system operatively coupled with the one or more computer readable storage media;
• and
• a data storage service comprising program instructions stored on the one or more computer readable storage media that, based on being read and executed by the processing system, direct the processing system to at least:
• receive data packets comprising storage operations over a network interface;
• and
• based at least on ones of the storage operations identified as directed to storage devices managed by a target processor coupled over a Peripheral Component Interconnect Express (PCIe) fabric, transferring over the PCIe fabric associated data packets comprising the ones of the storage operations into a network buffer of the target processor for handling of the ones of the storage operations up a network stack by the target processor with one or more storage devices coupled over the PCIe fabric.