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1. 发明专利

JP2009282848A Abnormality determining apparatus 有权
标题翻译：异常判定装置
公开(公告)号：JP2009282848A
公开(公告)日：2009-12-03
申请号：JP2008135743
申请日：2008-05-23
申请人： Fujitsu Ltd , 富士通株式会社
发明人： ITO MIKIO , TAKAHASHI EISAKU , DAIKOKUYA HIDEJIRO , IKEUCHI KAZUHIKO , TAKAHASHI HIDEO , KONTA YOSHIHITO , KUBOTA NORIHIDE
IPC分类号： G06F3/06
CPC分类号： G06F11/0727 , G06F11/076
摘要： PROBLEM TO BE SOLVED: To provide an abnormality determining apparatus for securely detecting an abnormal HDD, based on an amount of increase of NON MEDIUM ERROR COUNT for a unit number of accesses.
SOLUTION: In a RAID apparatus 100, an error determining processing unit 430c determines whether an HDD is normal based on an error determining condition obtained from an amount of increase of NON MEDIUM ERROR COUNT and the number of accesses memorized on a control table 420b, and detects the HDD with abnormal performance.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于安全地检测异常HDD的异常判定装置，其基于对于单位访问次数的非中间错误计数的增加量。解决方案：在RAID装置100中，错误确定处理单元430c基于从NON MEDIUM ERROR COUNT的增加量和存储在控制表上的访问次数获得的错误确定条件来确定HDD是否正常 420b，并检测出具有异常性能的HDD。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2007280226A Control method of raid system, raid system, and control program of raid system 有权
标题翻译： RAID系统的控制方法，RAID系统和RAID系统的控制程序
公开(公告)号：JP2007280226A
公开(公告)日：2007-10-25
申请号：JP2006108061
申请日：2006-04-10
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU
IPC分类号： G06F3/06
CPC分类号： G11B20/1879 , G11B2020/1826 , G11B2020/183 , G11B2220/2516 , G11B2220/415
摘要： PROBLEM TO BE SOLVED: To provide a RAID system for confirming presence of data destruction in an area adjacent to a write area when a write error occurs and restoring data without applying a load to a host device when data destruction occurs, and to provide a write error restoration method.
SOLUTION: This control method of the RAID system provided with a plurality of disk devices includes: reading data of an area adjacent to an area in which the write error occurs when the write error is detected during writing data in the disk devices, and uses a RAID function to restore data of the adjacent area and writes the restored data in the adjacent area when the error is detected in the read data of the adjacent area.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种RAID系统，用于在发生写入错误时确认与写入区域相邻的区域中的数据销毁的存在，并且在数据破坏发生时不向主机设备施加负载而恢复数据，并且提供写错误恢复方法。解决方案：具有多个盘装置的RAID系统的这种控制方法包括：当在盘装置中写入数据期间检测到写入错误时，读取与写入错误发生的区域相邻的区域的数据，并且使用RAID功能来恢复相邻区域的数据，并且在相邻区域的读取数据中检测到错误时将恢复的数据写入相邻区域。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2012037941A Magnetic disk drive, and performance evaluation method and performance evaluation program for magnetic disk drive 有权
标题翻译：磁盘驱动器及性能评估方法及磁性磁盘驱动器的性能评估程序
公开(公告)号：JP2012037941A
公开(公告)日：2012-02-23
申请号：JP2010174823
申请日：2010-08-03
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU
IPC分类号： G06F3/06
摘要： PROBLEM TO BE SOLVED: To evaluate performance of a magnetic disk drive by utilizing changes in a writing time and a writing speed of data due to crosstalk.SOLUTION: A magnetic disk drive includes a writing control section (10) for suspending data writing according to a change due to crosstalk at the time of data writing, and a crosstalk evaluation section (12). The crosstalk evaluation section (12) measures a writing speed of a data pattern and evaluates whether the data writing is influenced by crosstalk on the basis of the writing speed. The crosstalk evaluation section writes a first data pattern having less noise in a specific area of a magnetic disk to measure the writing speed or a writing time of the first data pattern, then writes a second data pattern having more noise in the specific area of the magnetic disk to measure the writing speed or the writing time of the second data pattern. The crosstalk evaluation section then evaluates whether there is crosstalk by comparing the writing speeds or writing times of the first and second data patterns.
摘要翻译：要解决的问题：通过利用由于串扰引起的数据的写入时间和写入速度的变化来评估磁盘驱动器的性能。解决方案：磁盘驱动器包括一个写入控制部分（10），用于根据在数据写入时由串扰引起的变化暂停数据写入;以及串扰评估部分（12）。串扰评估部分（12）测量数据模式的写入速度，并根据写入速度评估数据写入是否受到串扰的影响。串扰评估部分在磁盘的特定区域中写入具有较小噪声的第一数据模式以测量第一数据模式的写入速度或写入时间，然后在第二数据模式的特定区域中写入具有更多噪声的第二数据模式磁盘来测量第二数据模式的写入速度或写入时间。串扰评估部分通过比较第一和第二数据模式的写入速度或写入时间来评估是否存在串扰。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011053878A Storage control device for detecting miscalculation of write position to disk, storage system, and access method 有权
标题翻译：用于检测写入位置到盘，存储系统和访问方法的存储器的存储控制设备
公开(公告)号：JP2011053878A
公开(公告)日：2011-03-17
申请号：JP2009201597
申请日：2009-09-01
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU , YOSHIDA TEIJI
IPC分类号： G06F12/16 , G06F3/06 , G11B20/10 , G11B20/18
CPC分类号： G06F12/10
摘要： PROBLEM TO BE SOLVED: To provide a storage control device for maintaining reliability by preventing the position miscalculation of data due to the erroneous conversion of a temporary logical address and physical address due to soft error or the like.
SOLUTION: A storage system includes a storage device and a storage control device, and the storage control device includes: a data read instruction means 25 for, when receiving a write instruction from a host, transmitting a read instruction including a logical address included in the write instruction from the host to the storage device; and an address conversion information correction means 27 for, when a logical address is included in the data of the pertinent position read by the storage device based on a read instruction from the data read instruction means 25, and the logical address included in the write instruction received from the host is different from a logical address included in the read data, reading the address conversion information from a system region, and for writing the read address conversion information in the memory.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于通过防止由于软错误等引起的临时逻辑地址和物理地址的错误转换导致的数据位置计算错误而保持可靠性的存储控制装置。解决方案：存储系统包括存储装置和存储控制装置，并且存储控制装置包括：数据读指令装置25，用于当从主机接收到写指令时，发送包括逻辑地址的读指令包括在从主机到存储设备的写指令中; 以及地址转换信息校正装置27，用于当基于来自数据读取指令装置25的读取指令将逻辑地址包括在由存储装置读取的相关位置的数据中时，以及包括在写入指令中的逻辑地址从主机接收的不同于读取数据中包含的逻辑地址，从系统区域读取地址转换信息，并将读取的地址转换信息写入存储器。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2008197778A Disk controller 有权
标题翻译：磁盘控制器
公开(公告)号：JP2008197778A
公开(公告)日：2008-08-28
申请号：JP2007030334
申请日：2007-02-09
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU
IPC分类号： G06F3/06
CPC分类号： G06F11/0796
摘要： PROBLEM TO BE SOLVED: To provide a disk controller designed so that information is not read from a failed disk device despite user's intention.
SOLUTION: A RAID device 9 inspects each of disk devices 19-1 to 19-8 and detects a disk device to be separated, a data read-protect determination section 15 controls an overwrite control section 16 of a data region to overwrite the data of the data region of the target disk device with "0". Otherwise, an overwrite section 17 of an SA (System Area) region outputs, to the disk device, a command for overwriting the SA of the target disk device with "0". Otherwise, a head suction instruction section 18 issues a command for physically sucking a head to a disk medium to the target disk device.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种设计用于尽管用户意图从未从故障磁盘设备读取信息的磁盘控制器。解决方案：RAID设备9检查每个磁盘设备19-1至19-8并检测要分离的磁盘设备，数据读取保护确定部分15控制数据区域的重写控制部分16覆盖目标磁盘设备的数据区域的数据为“0”。否则，SA（系统区域）区域的覆盖部分17向盘装置输出用于用“0”覆盖目标盘装置的SA的命令。否则，头抽吸指令部18向目标盘装置发出用于将磁头物理吸附到盘介质的命令。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007011687A Storage system, storage control device and storage control method 有权
标题翻译：存储系统，存储控制设备和存储控制方法
公开(公告)号：JP2007011687A
公开(公告)日：2007-01-18
申请号：JP2005191641
申请日：2005-06-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OOKUROTANI HIDEJIRO , TAKAHASHI HIDEO , KONTA YOSHIHITO , SATO YASUTAKE , SATO HIROAKI , KUBOTA NORIHIDE , IKENO MASAMI , HIRANO TADASHI , NAKAGAMI TAKESHI , NODA YUJI , INAI YUSUKE , TONE NAOYOSHI , ITO MIKIO , IKEUCHI KAZUHIKO , YOSHIYA YUKIHIRO , KIKUCHI NOBUYUKI , ARAMITSU MASARU , TAKAHASHI EISAKU
IPC分类号： G06F3/06 , G06F13/10
CPC分类号： G06F3/0659 , G06F3/0619 , G06F3/0623 , G06F3/0689 , G06F11/1435 , G06F11/1612 , G06F11/2056 , G11B20/1879 , G11B2020/183
摘要： PROBLEM TO BE SOLVED: To prevent erroneous data transfer by determining the validity of recovery in a storage system wherein a disk device recovers and transfers read data.
SOLUTION: A control device performs read access to the disk device 15, and the disk device 15 returns read data and a recovered read error response. The control device 10 carries out retry by the same command at the first recovered read error and determines the data to be correct when no error occurs, to a read command including the retry. Uncertain data (faked data) at the occurrence of the recovered read error is recovered by the retry of the disk, and correct read data can be transferred to a host.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过确定磁盘设备恢复并传送读取数据的存储系统中的恢复的有效性来防止错误的数据传输。解决方案：控制设备执行对磁盘设备15的读取访问，磁盘设备15返回读取数据和恢复的读取错误响应。控制装置10通过相同的命令在第一恢复的读取错误中执行重试，并且在不发生错误时将数据确定为包括重试的读取命令。在恢复的读取错误发生时，不确定的数据（伪造的数据）通过重试磁盘来恢复，正确的读取数据可以传送到主机。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2010128887A Storage, storage system, and control method 有权
标题翻译：存储，存储系统和控制方法
公开(公告)号：JP2010128887A
公开(公告)日：2010-06-10
申请号：JP2008304226
申请日：2008-11-28
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU
IPC分类号： G06F3/06
摘要： PROBLEM TO BE SOLVED: To increase write speed, and to improve reliability without deteriorating write performance even in writing data accompanying a write verification function. SOLUTION: A storage includes: a command analysis section 22 for determining whether a command related to data received from a host device is a read command; a forced access determination section 23 for determining whether the read command is a forced access command when it is determined that the command is a read command; and a read-ahead inhibition section 24 for inhibiting a read-ahead function when the command is a read command and it is determined that the command is a forced access command. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在写入与写入验证功能相关的数据时，也可以提高写入速度，提高可靠性而不会降低写入性能。存储器包括：命令分析部分22，用于确定与从主机设备接收的数据有关的命令是否是读命令; 强制访问确定部分23，用于当确定该命令是读命令时，确定读命令是强制访问命令; 以及用于当命令是读取命令时禁止预读功能并且确定该命令是强制访问命令的预读禁止部分24。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2006085592A Storage medium controller, storage medium control method and storage medium control program 有权
标题翻译：存储介质控制器，存储介质控制方法和存储介质控制程序
公开(公告)号：JP2006085592A
公开(公告)日：2006-03-30
申请号：JP2004271861
申请日：2004-09-17
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TAKAHASHI EISAKU
IPC分类号： G06F3/06
CPC分类号： G11B20/1883 , G11B2020/1823 , G11B2020/1826 , G11B2020/183 , G11B2220/20
摘要： PROBLEM TO BE SOLVED: To appropriately perform alternate processing by discriminating the necessity of the alternate processing for a read error with high accuracy.
SOLUTION: When there is a response of a read error from disk drive 30 in response to read access, a disk controller 10 registers information showing an error occurrence place on a disk where the read error occurs in an error occurrence place storing part 15a. At the time of disk patrol, the disk controller 10 tries to get read access to the error occurrence place several times to check whether the read error is repeated several times on the basis of the information showing the error occurrence place stored in the error occurrence place storing part 15a. When the read error is consequently repeated several times in such error checking, the disk controller 10 performs alternate processing of the error occurrence place.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过以高精度识别读取错误的替代处理的必要性来适当地执行替代处理。解决方案：当磁盘驱动器30响应于读取访问存在读取错误的响应时，磁盘控制器10将错误发生位置的信息登记在错误发生位置存储部分发生读取错误的盘上 15A。在磁盘巡视时，磁盘控制器10试图对出错位置进行多次读取访问，以便根据存储在错误发生地点的错误发生地点的信息来检查读取错误是否重复多次存储部15a。当在这种错误检查中读取错误因此重复多次时，磁盘控制器10执行错误发生地点的替代处理。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2002352535A DISK DEVICE 审中-公开
公开(公告)号：JP2002352535A
公开(公告)日：2002-12-06
申请号：JP2002111737
申请日：2002-04-15
申请人： FUJITSU LTD
发明人： OBA KAZUHIDE , SATO ATSUSHI , TAKAHASHI EISAKU , SHOJI TAKASHI , SUDA ISAO , OKAMURA EIJI , GOFUKU TATSUYA , ONO TOMOHIRO
IPC分类号： G11B21/08 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To absorb fluctuation due to the change of temperature by measuring and correcting an eccentric correction value in a real time in performing on- track control. SOLUTION: This disk device is provided with a disk medium in which servo information is magnetically recorded in a sector area on a cylinder, a head position detecting means 185 for detecting the head position corresponding to the track center of the detected position of the head means 14 from the reading signal of the servo information, and a correction table means 194 for storing a position error calculated by on-track control as an eccentric correction value. Then, the head means 14 is driven so that the position error can be turned into zero by subtracting the head position from a corrected target value calculated by subtracting the previous eccentric correction value obtained by the reading of the correction table means 194 from a target position set in an on-track state after the head means 14 is moved to an arbitrary cylinder, and a new eccentric correction value is obtained by adding the head position to the previous eccentric correction value, and stored in the correction table 194.

10. 发明专利

JPH07334808A DISK DEVICE 失效
公开(公告)号：JPH07334808A
公开(公告)日：1995-12-22
申请号：JP12512394
申请日：1994-06-07
申请人： FUJITSU LTD
发明人： OBA KAZUHIDE , SATO ATSUSHI , TAKAHASHI EISAKU , SHOJI TAKASHI , SUDA ISAO , OKAMURA EIJI , GOFUKU TATSUYA , ONO TOMOHIRO
IPC分类号： G11B5/09 , G11B21/08
摘要： PURPOSE:To increase storage capacity in a sector servo by shortening recording length of a sector mark and a gray code without degrading a detection rate. CONSTITUTION:A sector mark detecting means 96 compares a peak detecting pulse in the period of reading a sector mark 66 and a sequence being time series of a polarity signal with the reference sequence, and detects the sector mark 66 by coincidence of the both. The reference sequence is provided with redundancy so that detection can be performed even if any of reading signals of the sector mark 66 is omitted. A gray code detecting means 94 used for recognizing a cylinder address also detects a gray code based on a peak detecting pulse obtained by reading a gray code 68 and a polarity signal. Further, by using a status counter, normal detection can be performed even if either of two reading signals corresponding to one gray code is omitted.

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