公开(公告)号：US09804965B2

公开(公告)日：2017-10-31

申请号：US14848841

申请日：2015-09-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Chang Kim ,  Ki Sung Jin ,  Young Kyun Kim ,  Hong Yeon Kim ,  Wan Choi

IPC: G06F12/08 ,  G06F12/0862 ,  G06F9/44 ,  G06F9/455

CPC classification number: G06F12/0862 ,  G06F9/4401 ,  G06F9/45558 ,  G06F2009/45579 ,  G06F2212/6026

Abstract: A virtual machine host server includes a virtual machine in which a guest operating system is installed and operated, a cache manager for processing at least one of an open request, a close request, and an input/output request for a disk image file of the virtual machine, which is stored in a storage system, and managing a boot workload map and a boot segment, a cache device for caching the boot segment, and a prefetch manager for prefetching the boot segment from the cache device.

公开(公告)号：US10135926B2

公开(公告)日：2018-11-20

申请号：US14919135

申请日：2015-10-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ki Sung Jin ,  Young Chang Kim ,  Young Kyun Kim ,  Hong Yeon Kim ,  Wan Choi

IPC: G06F17/30 ,  H04L29/08

Abstract: Provided herein is a shuffle embedded distributed storage system and method supporting virtual merge, the system and method including a distributed shared storage configured to store a virtual merged file; a plurality of map servers connected to the distributed shared storage via a network, and configured to perform a map function and record a map result data computed as a result of the map function in the distributed shared storage by means of a map result file; and a plurality of reduce servers connected to the distributed shared storage and the map servers via the network, wherein the virtual merged file includes a list of the map result files recorded by the plurality of map servers, and an identifier of a reduce server to which the virtual merged file is to be transmitted.