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1. (WO2017056220) COMPUTER SYSTEM, COMMAND TRANSFER METHOD, AND TRANSFER DEVICE

Pub. No.:    WO/2017/056220    International Application No.:    PCT/JP2015/077694
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Thu Oct 01 01:59:59 CEST 2015
IPC: G06F 13/10
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: YOSHIKAWA, Takao
吉川 威雄
KIYOTA, Yuusaku
清田 雄策
Title: COMPUTER SYSTEM, COMMAND TRANSFER METHOD, AND TRANSFER DEVICE
Abstract:
This transfer device for transferring a command between node devices comprises a plurality of processor cores (hereinafter referred to simply as cores), two or more first protocol (e.g., Fibre Channel Protocol (FCP)) queues, each associated with a corresponding one of two or more cores, and a second protocol (e.g., NVMe) queue shared by the plurality of cores. When a core has acquired information from the second protocol queue, the core initiates transfer of a second protocol command that is either included in the acquired information or associated with meta-information in the acquired information. The second protocol is a protocol that supports an I/O command and one or more types of special commands. The one or more types of special commands include a command which requires more processing to transfer than is required to transfer the I/O command.