Invention Grant
US08738963B2 Methods and apparatus for managing error codes for storage systems coupled with external storage systems
有权
用于管理与外部存储系统相结合的存储系统的错误代码的方法和装置
- Patent Title: Methods and apparatus for managing error codes for storage systems coupled with external storage systems
- Patent Title (中): 用于管理与外部存储系统相结合的存储系统的错误代码的方法和装置
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Application No.: US13783489Application Date: 2013-03-04
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Publication No.: US08738963B2Publication Date: 2014-05-27
- Inventor: Tomohiro Kawaguchi , Akira Yamamoto
- Applicant: Hitachi, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Main IPC: G06F11/08
- IPC: G06F11/08
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.
Public/Granted literature
- US20130179737A1 METHODS AND APPARATUS FOR MANAGING ERROR CODES FOR STORAGE SYSTEMS COUPLED WITH EXTERNAL STORAGE SYSTEMS Public/Granted day:2013-07-11
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