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1. 发明申请

US20050081087A1 Array-type disk apparatus preventing data lost with two disk drives failure in the same raid group, the preventing programming and said method 失效
标题翻译：阵列式磁盘设备防止数据丢失与两个磁盘驱动器在同一个RAID组中发生故障，防止编程和所述方法
公开(公告)号：US20050081087A1
公开(公告)日：2005-04-14
申请号：US10775702
申请日：2004-02-09
申请人： Ikuya Yagisawa , Takeki Okamoto , Naoto-Matsunami , Mikio Fukuoka , Toshio Nakano , Kenichi Takamoto , Akira Yamamoto
发明人： Ikuya Yagisawa , Takeki Okamoto , Naoto-Matsunami , Mikio Fukuoka , Toshio Nakano , Kenichi Takamoto , Akira Yamamoto
IPC分类号： G06F3/06 , G06F11/00 , G06F11/20
CPC分类号： G06F11/008 , G06F11/1662 , G06F11/2069 , G06F11/2089 , G06F11/2094 , G06F11/2097 , G06F2201/81
摘要： Disclosed is storage system, that is, an array-type disk apparatus which is provided with an error monitor section which monitors the status of error occurrence in a disk drive and instructs initiation of mirroring between the disk drive and a spare disk drive when the number of errors occurred of the disk drive exceeds a specified value, and a mirror section which performs mirroring between the disk drive and spare disk drive. Storage system, that is, the array-type disk apparatus may be provided with an error monitor section which monitors the status of error occurrence in a disk drive and gives such an instruction as to set the status of the disk drive in a temporary blocked state, and a data restoring section which executes data restoration by reading data from the temporary blocked disk drive when reading from another disk drive constituting a disk array group is not possible during data restoration. Further, at the time of shifting data from a disk drive to a spare disk drive, it is possible to store a failure counter indicating the number of errors occurred in the disk drive in a common memory and ensure selection of either reading of data of a data-shifting disk drive from the disk drive or reading data from some other disk drives constituting a disk array group and restoring data through redundancy. calculation.
摘要翻译：公开了一种存储系统，即具有错误监视部分的阵列式磁盘设备，该错误监视部分监视磁盘驱动器中的错误发生状态，并指示当磁盘驱动器和备用磁盘驱动器之间的镜像启动时磁盘驱动器发生的错误超过指定值，以及在磁盘驱动器和备用磁盘驱动器之间执行镜像的镜像部分。存储系统，即阵列型磁盘装置可以设置有错误监视部分，该部分监视磁盘驱动器中的错误发生的状态，并给出这样的指令，以将磁盘驱动器的状态设置为临时阻止状态以及数据恢复部，其在数据恢复期间是不可能的，所述数据恢复部通过从临时被阻止的磁盘驱动器读取数据来执行数据恢复。此外，在将数据从磁盘驱动器转移到备用磁盘驱动器时，可以将指示磁盘驱动器中发生的错误的数量的故障计数器存储在公共存储器中，并且确保选择读取数据的从磁盘驱动器进行数据移动磁盘驱动器，或从构成磁盘阵列组的其他磁盘驱动器读取数据，并通过冗余恢复数据。计算。

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