Hewlett Packard Enterprise Development LP

Hewlett-packard Development Company, L.P.

Sriram Narasimhan

Alex Veprinsky

Mohan Parthasarathy

Ashok Rajagopalan

Chetan Yaliwal

In some examples, a computer system computes a rate of operations that involves a first system, and classifies, using a classifier, a request for an operation. The computer system determines a relationship between the computed rate of operations and a dynamic threshold rate determined during a training phase, and based on the determined relationship and a classification of the request by the classifier, selectively activates or disables an operational feature of the first system.

Operational feature activation/disabling

In some examples, a system includes a Fibre Channel (FC) interface to communicate over an FC network, and a network stack including a network layer and a transport layer. Machine-readable instructions are executable to produce a command packet including a payload including data for transmission to another system, the payload further including headers for the network layer and the transport layer, where the command packet is according to a storage interface protocol. The FC interface is to communicate the command packet over the FC network.

Storage interface command packets over fibre channel with transport and network headers as payloads

I/O tracing is implemented in a system in which an I/O device is configured for protocol offload. A data unit having headers and payload is replicated and the replicated unit sent to the end node along with the payload data. In an alternative embodiment, the I/O device keeps track of the one or more protocol headers layers separately from the application payload. Information defining the relationship between the headers and payload is sent to the end node to enable it to reconstruct the data unit.

Input/output tracing in a protocol offload system

A method and apparatus for receiving inbound data on an I/O device wherein a request to receive inbound data is received. A direct-data-placement request-tag is generated and associated with a pre-allocated buffer when the request requires direct data placement. A non-direct-data-placement request-tag is generated when the request does not require direct data placement. The received request is then augmented with a generated request-tag and directed to a data interface unit. A data packet that includes a reply-tag and a payload is then received in the data interface unit. The payload is directed from the data interface unit into a pre-allocated buffer when the reply-tag correlates with a request-tag that is associated with a pre-allocated buffer. Otherwise, the payload is retrieved from the data interface unit when the reply-tag does not correlate with a request-tag that is associated with a pre-allocated buffer.

Growing community of inventors

Cupertino, CA, United States of America

Sriram Narasimhan