Abstract: In a computer system where multiple client computers share use of a storage device, submission priorities for input-output commands from the computers are adjusted when one or more of the client computers exceeds its quota of usage. The submission priorities for the client computers which are exceeding their quota are reduced relative to submission priorities for client computers which are not exceeding their quotas. This allows up to full usage of the processing capacity of the storage device, while minimizing effects such as unfairness and latency experienced by the other client computers.

Abstract: A drive placement or placement functionality can enable initial copies of data to be placed on a drive in reclaim unit (HRUs) in a manner which is probabilistically more efficient from a garbage collection (GC) perspective and leverages knowledge of a host or application using the data. The placement functionality enables the advantages of fine-grained placement functionality while simultaneously allowing a storage device or storage drive to maintain NAND or other management responsibility, and not allocate that responsibility to an application or host device using the device.

Abstract: A packet handling detection system detects a packet handling device between an originating device and a detection device by analyzing one or more transmission parameters of a packet received at the detection device.