发明名称 |
Media drive that creates a transfer unnecessary period, and power saving method thereof |
摘要 |
Embodiments of the present invention provide a media drive that is intended for reduction in power consumption required for serial communications to/from a host, and a power saving method thereof. In one embodiment, a HDD includes: a cache; a host interface for transferring, to a host, transfer data read out from the cache; a host interface manager that controls the execution of commands so as to generate a transfer unnecessary period during which a command and transfer data need not be exchanged with the host; and a MPU that brings a serial communication part of the host interface into a power save mode during the transfer unnecessary period. The host interface manager determines the optimum data transfer timing of transferring data from the cache to the host on the basis of a transfer rate at which data is transferred to the host, and a read rate at which data is read out from a disk into the cache.
|
申请公布号 |
US7664884(B2) |
申请公布日期 |
2010.02.16 |
申请号 |
US20050267539 |
申请日期 |
2005.11.04 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
KANAMARU ATSUSHI;KAWA TADAHISA;KOBAYASHI HIROMI;SAITOH HIROFUMI |
分类号 |
G06F3/00;G06F1/00;G06F1/26;G06F1/32;G06F5/00;G06F13/00;G06F13/12;G06F13/14;G06F13/20;G06F13/36;G06F13/38;G06F13/40 |
主分类号 |
G06F3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|