公开(公告)号：JP2003216346A

公开(公告)日：2003-07-31

申请号：JP2002013517

申请日：2002-01-22

Applicant: IBM

Inventor： ISHIMOTO KENJI ,  SUMIYOSHI TORU

IPC: G06F3/06 ,  G06F12/16

Abstract: PROBLEM TO BE SOLVED: To provide an external storage device for restoring failure. SOLUTION: Each of a plurality of storage devices connected to each other through communication paths to form circular first paths is operable to invalidate a connection to a first preliminary communication path being a communication path of the first paths for performing communication, and is provided with a first connecting part having a first input part and a first output part and a second connecting part having a second output part and a second input part which are respectively connected to the first input part and the first output part of the external storage device adjacent on the first paths to form part of the first paths. When both connecting parts are valid, pieces of information received by the first input part and the second input part are respectively transmitted from the second output part and the first output part. When any connecting part is invalid, the information received by the input part of the valid connecting part is transmitted from the output part of the connecting part. When the failure of any communication path on the first paths is detected, the connection to the first preliminary communication path is validated, and the connection to the communication path whose failure is detected is invalidated. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2007213584A

公开(公告)日：2007-08-23

申请号：JP2007029378

申请日：2007-02-08

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： GREG STEPHEN LUKAS ,  TERASHITA YOSHIHIKO ,  SUMIYOSHI TORU ,  KUBO ROBERT A

IPC: G06F1/26 ,  G06F3/06

CPC classification number: G06F1/26 ,  G06F3/0601 ,  G06F11/2015 ,  G06F2003/0692 ,  G11B33/12

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method which detect a plurality of data storage devices actually disposed in a data storage system and then turn on power sources of the detected data storage device. SOLUTION: A method is disclosed to provide power to the plurality of data storage devices disposed in the data storage system. The data storage system comprises a system controller comprising a data storage device power-up algorithm and a plurality of data storage devices, where each of the plurality of data storage devices cannot automatically provide a device present signal. The method detects the presence of each of the plurality of data storage devices, and then provides power to each of the detected data storage devices using the data storage device power-up algorithm. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种检测实际设置在数据存储系统中的多个数据存储装置，然后接通检测数据存储装置的电源的装置和方法。 解决方案：公开了一种为设置在数据存储系统中的多个数据存储设备提供电力的方法。 数据存储系统包括系统控制器，其包括数据存储设备上电算法和多个数据存储设备，其中多个数据存储设备中的每一个不能自动提供设备当前信号。 该方法检测多个数据存储装置中的每一个的存在，然后使用数据存储装置加电算法向每个检测数据存储装置提供电力。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2004334706A

公开(公告)日：2004-11-25

申请号：JP2003132165

申请日：2003-05-09

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： FUJIE YOSHITAKA ,  SUMIYOSHI TORU ,  TERASHITA YOSHIHIKO

IPC: G06F12/08 ,  G06F3/06 ,  G06F11/10 ,  G06F12/00

CPC classification number: G06F11/1076 ,  G06F2211/1054

Abstract: PROBLEM TO BE SOLVED: To solve the bottle neck of a control device caused in a large-scale storage system. SOLUTION: This storage system for storing a set of data block and redundant block comprises a plurality of control parts which control a plurality of storage devices respectively; a host connection part for selecting a control part for controlling a storage device for storing a writing data block of a writing object; and a transfer part for transferring the write data block to this control part. Each of the control parts has a data block writing part for writing the writing data block transferred by the transfer part to the storage device for storing the writing data block; a redundant block update request part for requesting update of redundant block to a control part for controlling a storage device for storing a redundant block; and a redundant block update part for updating, when update of redundant block is requested from another control part, the redundant block stored in the storage device controlled by this control part. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：解决在大型存储系统中引起的控制装置的瓶颈。 解决方案：用于存储一组数据块和冗余块的存储系统包括分别控制多个存储装置的多个控制部分; 主机连接部分，用于选择用于控制用于存储写入对象的写入数据块的存储装置的控制部分; 以及用于将写入数据块传送到该控制部分的传送部件。 每个控制部分具有用于将由传送部分传送的写入数据块写入到用于存储写入数据块的存储装置的数据块写入部分; 用于向控制部分请求更新冗余块的冗余块更新请求部分，用于控制用于存储冗余块的存储设备; 以及冗余块更新部件，用于当从另一控制部分请求更新冗余块时，更新存储在由该控制部分控制的存储装置中的冗余块。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2006164319A

公开(公告)日：2006-06-22

申请号：JP2004349947

申请日：2004-12-02

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： TERASHITA YOSHIHIKO ,  SUMIYOSHI TORU ,  MIYOSHI HIROYUKI

IPC: G11B20/18

CPC classification number: G06F11/1076 ,  G06F2211/1007 ,  G06F2211/104

Abstract: PROBLEM TO BE SOLVED: To avoid a problem that a storage subsystem returns erroneous data to a host system without consuming storage capacity and without affecting reading performance.
SOLUTION: When the data is transferred from disk drives 16
1 -16
n to a cache part 15 via a back-end I/F part 14, a redundant code verification part 13b of a data path control part 13 compares a writing history information (DC value) embedded in a redundant code of the data with a DC value embedded in a redundant code of corresponding parity and verifies whether or not the data is the erroneous data. In addition, when the data is updated, similar verification is performed when the old data for creating the parity is read and when the data is not the erroneous data, a redundant code generation part 13a of the data path control part 13 adds a redundant code in which a new DC value is embedded to a new piece of data and parity. When the data is the erroneous data, a control part 11 informs the host system of the occurrence of the problem via a front-end I/F part 12.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了避免存储子系统在不消耗存储容量并且不影响读取性能的情况下向主机系统返回错误数据的问题。

解决方案：当数据从磁盘驱动器16 -16 n 经由后端I / F部分14传送到高速缓存部分15时，冗余 数据路径控制部分13的代码验证部分13b将嵌入在数据的冗余代码中的写入历史信息（DC值）与嵌入在相应奇偶校验的冗余代码中的DC值进行比较，并且验证数据是否是错误的 数据。 此外，当更新数据时，当读取用于创建奇偶校验的旧数据时，并且当数据不是错误数据时，执行类似的验证，数据路径控制部分13的冗余代码生成部分13a将冗余代码 其中新的DC值嵌入到新的数据和奇偶校验中。 当数据是错误的数据时，控制部分11通过前端I / F部分12向主机系统通知问题的发生。（C）版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003216342A

公开(公告)日：2003-07-31

申请号：JP2002009264

申请日：2002-01-17

Applicant: IBM

Inventor： ISHIMOTO KENJI ,  SUMIYOSHI TORU

IPC: G06F13/10 ,  G06F3/06 ,  G06F13/00

Abstract: PROBLEM TO BE SOLVED: To provide an external storage device for quickly performing communications and restoring the failure of communications. SOLUTION: This external storage device is provided with: a first input/ output part and a second input/output part for inputting/outputting information with the outside; a plurality of recording parts connected between the first input/output part and the second input/output part so that information transmission paths are serially connected; and a switching control part for selecting the two adjacent parts from the first input/output part, each of the recording parts, and the second input/output part to define a boundary, and for making the recording part positioned more closely to the first input/output part than the boundary communicate with the outside by using the first input/output part, and making the recording part positioned more closely to the second input/output part than the boundary communicate with the outside by using the second input/output part. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003150319A

公开(公告)日：2003-05-23

申请号：JP2001347320

申请日：2001-11-13

Applicant: IBM

Inventor： SUMIYOSHI TORU ,  FUJIE YOSHITAKA ,  MUKAI MAKIO

IPC: G06F3/00 ,  G06F3/06

Abstract: PROBLEM TO BE SOLVED: To provide an SCSI (small computer system interface) enclosure service (SES) function for enabling accurate control/management of disk enclosure without impairing usability of a user. SOLUTION: The disk enclosure 21 is provided with a plurality of HDDs 6, an enclosure manager 24 for outputting control/management information of the disk enclosure 21 and S/P converters 30 to be provided corresponding to the respective HDDs 6, for serially converting control/management commands outputted from the HDDs 6 as parallel signals, for outputting the commands to the enclosure manager 24 and for parallely converting the control/ management information outputted from the enclosure manager 24. Thus, the SES function in an ESI system can be validated for a plurality of the HDDs 6 simply by providing a serial port 32 to the enclosure manager 24 and connecting the respective S/P converters 30 with the enclosure manager 24 by a serial bus 31.