公开(公告)号：EP2375329A2

公开(公告)日：2011-10-12

申请号：EP10174916.6

申请日：2010-09-01

申请人： Hitachi Ltd.

发明人： Yamamoto, Akira ,  Kawaguchi, Tomohiro

IPC分类号： G06F11/10

CPC分类号： G06F11/1004 ,  G06F11/006 ,  G06F11/1076 ,  G06F11/2094 ,  G06F2211/1059

摘要： 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.

摘要翻译： 一种系统，包括存储系统的复数，其中采用的可靠性多个级别的存储设备。 作为一个整体系统的可靠性通过保持错误代码的可靠性相对较低的存储盘在相对高可靠性存储系统增加，错误代码是使用散列函数计算和值用于与所述数据的散列值进行比较 从相对低的可靠性存储盘读出。

公开(公告)号：EP2105830A3

公开(公告)日：2010-11-03

申请号：EP08253961.0

申请日：2008-12-10

申请人： Hitachi, Ltd.

发明人： Kobayashi, Ikuko ,  Kimura, Shinji ,  Yamamoto, Akira

IPC分类号： G06F3/06

CPC分类号： G06F3/0638 ,  G06F3/0608 ,  G06F3/067

摘要： The storage apparatus includes an external logical unit as a target of a plurality of host apparatuses, and an internal logical unit assigned to the external logical unit. The internal logical unit includes a common logical unit having common files commonly used by the plurality of host apparatuses, and an individual logical unit having individual files used by each of the plurality of host apparatuses. Upon receipt of a write request from the host apparatus, the storage apparatus performs data matching by comparing write data depending on the write request with data stored in the common logical unit at a management block unit. The storage apparatus stores matching data block in the common logical unit, and stores a non-matching data block in an individual logical block.

公开(公告)号：EP1843249B1

公开(公告)日：2010-07-14

申请号：EP07010734.7

申请日：1998-09-03

申请人： Hitachi, Ltd.

发明人： Yamamoto, Akira ,  Nakamura, Katsunori ,  Kishiro, Shigeru

IPC分类号： G06F11/20

CPC分类号： G06F11/2064 ,  G06F11/2071 ,  G06F11/2074 ,  G06F2201/82

公开(公告)号：EP1411432A3

公开(公告)日：2009-12-16

申请号：EP04000884.9

申请日：1998-03-31

申请人： Hitachi, Ltd.

发明人： Fukuzawa, Yasuko ,  Yamamoto, Akira ,  Nakano, Toshio

IPC分类号： G06F3/06 ,  G06F11/14

CPC分类号： G06F3/065 ,  G06F3/0623 ,  G06F3/0685 ,  G06F11/1456

摘要： A storage system (10) comprises a first disk controller (104) coupled to a host computer (101) and at least one first disk (105) coupled to said first disk controller (104). The storage system (10) is coupled to another storage system (20), which comprises a second disk controller (113) and at least one second disk (114). The first disk controller (104) receives a write request issued from said host computer (101), selects a storage system including a target disk corresponding to first disk identification information included in said write request, obtains, if the selected storage system is said another storage system (20), identification information designating said another storage system (20) and second disk identification information designating one of said at least one second disk based on said first disk identification information, and sends a write request to said another storage system (20) according to said identification information designating said another storage system (20) and said second disk identification information.

公开(公告)号：EP1186988A3

公开(公告)日：2008-03-05

申请号：EP01124527.1

申请日：1994-11-17

申请人： Hitachi, Ltd.

发明人： Arai, Kouji ,  Satoh, Takao ,  Yamamoto, Akira

IPC分类号： G06F11/10 ,  G06F3/06

CPC分类号： G06F11/1096 ,  G06F3/0601 ,  G06F3/0607 ,  G06F3/0613 ,  G06F3/0632 ,  G06F3/0658 ,  G06F3/0689 ,  G06F2003/0697

摘要： A storage unit system includes a control apparatus (1010) having a unit for reading memory data from a plurality of storage units (1021 to 1024) before increase into a memory (1012) of the control apparatus, a preparing unit for preparing parity data newly from the memory data read in the memory, a rearrangement unit for dispersing transfer data from a processor (1001) read in the memory and the newly prepared parity data to be written into a plurality of storage units (1021 to 1025) after the increase to perform arrangement of data, a memory unit (1035) for storing a write position on the way of the rearrangement of data, a comparison unit for comparing an access position for an access request from the processor with the write position, and a determining unit for determining a data dispersed pattern used in a data access from the processor on the basis of a comparison result of the comparison means, whereby the storage unit can be increased individually with a unit of one storage unit and dynamically without stop of the system.

公开(公告)号：EP0902370B1

公开(公告)日：2007-12-26

申请号：EP98116656.4

申请日：1998-09-03

申请人： Hitachi, Ltd.

发明人： Yamamoto, Akira ,  Nakamura, Katsunori ,  Kishiro, Shigeru

IPC分类号： G06F11/20

CPC分类号： G06F11/2064 ,  G06F11/2071 ,  G06F11/2074 ,  G06F2201/82

公开(公告)号：EP0981091A3

公开(公告)日：2006-10-25

申请号：EP99116045.8

申请日：1999-08-16

申请人： Hitachi, Ltd.

发明人： Watanabe, Haruaki ,  Arai, Kouji ,  Nakamura, Katsunori ,  Oeda, Takashi ,  Yamamoto, Akira ,  Yamagami, Kenji

IPC分类号： G06F11/20

CPC分类号： G06F11/1451 ,  G06F11/2064 ,  G06F11/2082

摘要： In a storage system, a logical volume (104) is divided into a plurality of small areas called logical storage devices (200) and only such an area designated by a user is made an object of remote copying or migratory copying. Also, there is provided a unit (1011) for forming a logical volume (104) from any logical storage device (200) of any RAID group (205). Thereby, the reduction of the deterioration in performance at the time of remote copying, the reduction of a storage area to be assigned to a secondary site as a copy destination, the shortening of a time required for migratory copying and the assignment of any area of a logical volume on any RAID group are enabled.

公开(公告)号：EP1376328A3

公开(公告)日：2006-04-19

申请号：EP03020011.7

申请日：1996-12-20

申请人： Hitachi, Ltd.

发明人： Kanda, Motohiro ,  Yamamoto, Akira ,  Nakano, Toshio ,  Yoshida, Minoru

IPC分类号： G06F3/06 ,  G06F9/455

CPC分类号： G06F3/0601 ,  G06F3/0607 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0661 ,  G06F3/067 ,  G06F3/0674 ,  G06F3/0676 ,  G06F3/0689 ,  G06F2003/0697

摘要： A storage system (80) is connected with a first computer (11) and a second computer (10) and comprises a first interface (71) for receiving first data in a count-key-data format from the first computer (11), a storage device (100) for storing the first data, and a second interface (61) compatible with a fixed length data format, for receiving a request for reading the first data from the second computer (10) and outputting data stored in a track storing the first data to the second computer (10). The request includes information sent from the first computer (11) to the second computer (10) and indicating the position in the storage device (100) where the first data is stored.

摘要翻译： 存储系统（80）与第一计算机（11）和第二计算机（10）连接，并且包括用于从第一计算机（11）接收计数密钥数据格式的第一数据的第一接口（71） 用于存储第一数据的存储装置（100）和与固定长度数据格式兼容的第二接口（61），用于接收从第二计算机（10）读取第一数据的请求，并输出存储在轨道 将第一数据存储到第二计算机（10）。 请求包括从第一计算机（11）发送到第二计算机（10）并指示存储设备（100）中存储有第一数据的位置的信息。

公开(公告)号：EP0785500B1

公开(公告)日：2004-03-03

申请号：EP96120639.8

申请日：1996-12-20

申请人： Hitachi, Ltd.

发明人： Kanda, Motohiro ,  Yamamoto, Akira ,  Nakano, Toshio ,  Yoshida, Minoru

IPC分类号： G06F3/06

CPC分类号： G06F3/0601 ,  G06F3/0607 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0661 ,  G06F3/067 ,  G06F3/0674 ,  G06F3/0676 ,  G06F3/0689 ,  G06F2003/0697

公开(公告)号：EP1006445B1

公开(公告)日：2002-05-08

申请号：EP00100077.7

申请日：1994-11-17

申请人： Hitachi, Ltd.

发明人： Arai, Kouji ,  Satoh, Takao ,  Yamamoto, Akira

IPC分类号： G06F11/10 ,  G06F3/06

CPC分类号： G06F11/1096 ,  G06F3/0601 ,  G06F3/0607 ,  G06F3/0613 ,  G06F3/0632 ,  G06F3/0658 ,  G06F3/0689 ,  G06F2003/0697

摘要： A storage unit system includes a control apparatus (1010) having a unit for reading memory data from a plurality of storage units (1021 to 1024) before increase into a memory (1012) of the control apparatus, a preparing unit for preparing parity data newly from the memory data read in the memory, a rearrangement unit for dispersing transfer data from a processor (1001) read in the memory and the newly prepared parity data to be written into a plurality of storage units (1021 to 1025) after the increase to perform arrangement of data, a memory unit (1035) for storing a write position on the way of the rearrangement of data, a comparison unit for comparing an access position for an access request from the processor with the write position, and a determining unit for determining a data dispersed pattern used in a data access from the processor on the basis of a comparison result of the comparison means, whereby the storage unit can be increased individually with a unit of one storage unit and dynamically without stop of the system.