公开(公告)号：US09361177B2

公开(公告)日：2016-06-07

申请号：US14187498

申请日：2014-02-24

Applicant: Hitachi, Ltd., Intellectual Property Group

Inventor： Tomohiro Kawaguchi ,  Akira Yamamoto

IPC: G06F11/08 ,  G06F11/10 ,  G06F11/00 ,  G06F11/20

CPC classification number: G06F11/1004 ,  G06F11/006 ,  G06F11/1076 ,  G06F11/2094 ,  G06F2211/1059

Abstract: A system comprising a plurality of storage systems, which uses storage devices of multiple levels of reliability. The reliability as a whole system is increased by keeping the error code for the relatively low reliability storage disks in the relatively high reliability storage system. The error code is calculated using hash functions and the value is used to compare with the hash value of the data read from the relatively low reliability storage disks.

公开(公告)号：US20140173390A1

公开(公告)日：2014-06-19

申请号：US14187498

申请日：2014-02-24

Applicant: Hitachi, Ltd., Intellectual Property Group

Inventor： Tomohiro Kawaguchi ,  Akira Yamamoto

IPC: G06F11/10

CPC classification number: G06F11/1004 ,  G06F11/006 ,  G06F11/1076 ,  G06F11/2094 ,  G06F2211/1059

Abstract: A system comprising a plurality of storage systems, which uses storage devices of multiple levels of reliability. The reliability as a whole system is increased by keeping the error code for the relatively low reliability storage disks in the relatively high reliability storage system. The error code is calculated using hash functions and the value is used to compare with the hash value of the data read from the relatively low reliability storage disks.

Abstract translation: 一种包括多个存储系统的系统，其使用多级可靠性的存储设备。 通过在相对较高的可靠性存储系统中保持相对较低的可靠性存储盘的错误代码来增加整个系统的可靠性。 使用散列函数计算错误代码，该值用于与从较低可靠性存储磁盘读取的数据的哈希值进行比较。