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1. 发明公开

EP3229139A1 METHOD FOR WRITING DATA INTO STORAGE SYSTEM AND STORAGE SYSTEM 有权
标题翻译：将数据写入存储系统和存储系统的方法
公开(公告)号：EP3229139A1
公开(公告)日：2017-10-11
申请号：EP17150332.9
申请日：2014-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： YI, Letian , FANG, Xin , ZHANG, Zhenhua
IPC分类号： G06F11/14 , G06F3/06 , G06F11/10
CPC分类号： G06F3/0689 , G06F3/06 , G06F3/0619 , G06F3/0665 , G06F11/108 , G06F11/1084 , G06F11/14
摘要： Embodiments of the present invention provide a method for writing data into a storage system and a storage system. The storage system includes a redundant array of independent disks (RAID). The RAID includes a control device and X storage devices, a data stripe stripe is stored in the RAID, and the stripe includes T members. The control device determines that at least one first storage device of the X storage devices is out of service, where at least one member is stored in the first storage device; selects a second storage device from the X storage devices, where a quantity of members stored in the second storage device is less than T/X; and then writes target data into the second storage device, where the target data is a data unit or a check unit used to update the at least one member that is stored in the first storage device. This can ensure data reliability to an extent.
摘要翻译：本发明的实施例提供了一种用于将数据写入存储系统和存储系统的方法。存储系统包括独立磁盘冗余阵列（RAID）。 RAID包括控制设备和X存储设备，数据条带存储在RAID中，条带包含T个成员。控制设备确定X个存储设备中的至少一个第一存储设备不在服务中，其中至少一个成员存储在第一存储设备中; 从所述X个存储设备中选择第二存储设备，其中存储在所述第二存储设备中的成员的数量小于T / X; 然后将目标数据写入第二存储设备，目标数据为用于更新存储在第一存储设备中的至少一个成员的数据单元或校验单元。这可以在一定程度上确保数据的可靠性。

2. 发明公开

EP3128429A4 METHOD FOR WRITING DATA INTO STORAGE SYSTEM AND STORAGE SYSTEM 有权
标题翻译： VEFAHREN ZUM SCHREIBEN VON DATEN IN EIN SPEICHERSYSTEM SOWIE SPEICHERSYSTEM
公开(公告)号：EP3128429A4
公开(公告)日：2017-06-28
申请号：EP14909472
申请日：2014-12-31
申请人： HUAWEI TECH CO LTD
发明人： YI LETIAN , FANG XIN , ZHANG ZHENHUA
IPC分类号： G06F11/14 , G06F3/06 , G06F11/10
CPC分类号： G06F3/0689 , G06F3/06 , G06F3/0665 , G06F11/1084 , G06F11/14
摘要： Embodiments of the present invention provide a method for writing data into a storage system and a storage system. The storage system includes a redundant array of independent disks (RAID). The RAID includes a control device and X storage devices, a data stripe stripe is stored in the RAID, and the stripe includes T members. The control device determines that at least one first storage device of the X storage devices is out of service, where at least one member is stored in the first storage device; selects a second storage device from the X storage devices, where a quantity of members stored in the second storage device is less than T/X; and then writes target data into the second storage device, where the target data is a data unit or a check unit used to update the at least one member that is stored in the first storage device. This can ensure data reliability to an extent.
摘要翻译：本发明的实施例提供了一种用于将数据写入存储系统和存储系统的方法。存储系统包括独立磁盘冗余阵列（RAID）。 RAID包括控制设备和X存储设备，数据条带存储在RAID中，条带包含T个成员。控制设备确定X个存储设备中的至少一个第一存储设备不在服务中，其中至少一个成员存储在第一存储设备中; 从所述X个存储设备中选择第二存储设备，其中存储在所述第二存储设备中的成员的数量小于T / X; 然后将目标数据写入第二存储设备，目标数据为用于更新存储在第一存储设备中的至少一个成员的数据单元或校验单元。这可以在一定程度上确保数据的可靠性。

3. 发明授权

EP1774437B1 PERFORMING A PREEMPTIVE RECONSTRUCT OF A FAULT-TOLERANT RAID ARRAY 有权
标题翻译：实现容错RAID组的预防性重建
公开(公告)号：EP1774437B1
公开(公告)日：2008-06-04
申请号：EP05772970.9
申请日：2005-07-11
申请人： Dot Hill Systems Corporation
发明人： ASHMORE, Paul
IPC分类号： G06F11/20 , G06F11/00
CPC分类号： G06F11/008 , G06F11/004 , G06F11/1084 , G06F11/1092 , G06F11/1662 , G06F11/2094 , G06F2211/1035

4. 发明公开

EP1825373A2 DYNAMICALLY EXPANDABLE AND CONTRACTIBLE FAULT-TOLERANT STORAGE SYSTEM WITH VIRTUAL HOT SPARE 审中-公开
标题翻译：虚拟与HOT-SPARE动态和可扩展伸缩容错存储系统
公开(公告)号：EP1825373A2
公开(公告)日：2007-08-29
申请号：EP05851327.6
申请日：2005-11-04
申请人： Data Robotics Incorporated
发明人： BARRALL, Geoffrey, S. , TERRY, Julian, M. , ROSEN, Kenneth
IPC分类号： G06F11/10
CPC分类号： G06F11/2094 , G06F3/0607 , G06F3/0644 , G06F3/0689 , G06F11/1084 , G06F11/1096 , G06F11/1658 , G06F11/1662 , G06F11/2069 , G06F11/2087 , G06F11/325 , G06F2211/1004 , G06F2211/1023 , G06F2211/1028 , G11B27/11 , G11B27/329 , G11B2220/415 , G11B2220/65
摘要： A dynamically expandable and contractible fault-tolerant storage system employs a virtual hot spare that is created from unused storage capacity across a plurality of storage devices. This unused storage capacity is available if and when a storage device fails for storage of data recovered from the remaining storage device(s). On an ongoing basis, the storage system may determine the amount of unused storage capacity that would be required for the vitual hot spare (e,g., based on the number of storage devices, the capacities of the various storage devices, the amount of data stored, and the manner in which the data is stored) and generate a signal if additional storage capacity is needed for a virtual hot spare.

5. 发明公开

EP1815337A2 STORAGE SYSTEM CONDITION INDICATOR AND METHOD 有权
标题翻译：存储系统状况指标的方法
公开(公告)号：EP1815337A2
公开(公告)日：2007-08-08
申请号：EP05822403.1
申请日：2005-11-04
申请人： Data Robotics Incorporated
发明人： BARRALL, Geoffrey, S.
IPC分类号： G06F11/10 , G06F3/06
CPC分类号： G06F11/2094 , G06F3/0607 , G06F3/0644 , G06F3/0689 , G06F11/1084 , G06F11/1096 , G06F11/1658 , G06F11/1662 , G06F11/2069 , G06F11/2087 , G06F11/325 , G06F2211/1004 , G06F2211/1023 , G06F2211/1028 , G11B27/11 , G11B27/329 , G11B2220/415 , G11B2220/65
摘要： A storage system condition indicator and method provides a visual display representing the operating condition of a set of storage devices. Various operating conditions may be defined based on available storage capacity and capacity to store data redundantly. One or more indicators may be used to represent the operating condition of the set of storage devices. The indicator(s) may be used to indicate whether additional storage capacity is recommended and, in a storage array, which slot in the array should be updated with additional storage capacity.

6. 发明公开

EP1644851A2 DATA STORAGE ARRAY 有权
标题翻译：数据存储阵列
公开(公告)号：EP1644851A2
公开(公告)日：2006-04-12
申请号：EP04766140.0
申请日：2004-07-07
申请人： International Business Machines Corporation
发明人： HETZLER, Steven, Robert , SMITH, Daniel, Felix
IPC分类号： G06F17/30
CPC分类号： G06F11/1084 , G06F11/008 , G06F2211/1004 , G06F2211/1028
摘要： The error tolerance of an array of m storage units is increased by using a technique referred to as “dodging.' A plurality of k stripes are stored across the array of storage units in which each stripe has n + r elements that correspond to a symmetric code having a minimum Hamming distance d = r + 1. Each respective element of a stripe is stored on a different storage unit. An element is selected when a difference between a minimum distance of the donor stripe and a minimum distance of a recipient stripe is greater or equal to 2. The selected element is also stored on a storage unit having no elements of the recipient stripe. A lost element of the recipient stripe is then rebuilt on the selected element.
摘要翻译：通过使用被称为“闪避”的技术，增加了m个存储单元阵列的容错性。横跨存储单元阵列存储多个k条，其中每个条具有对应于具有最小汉明距离d = r + 1的对称码的n + r个元素。条的每个相应元素存储在不同的存储单元。当施主条带的最小距离与接受条带的最小距离之间的差异大于或等于2时，选择元素。所选元素也存储在不具有接受者条带的元素的存储单元上。然后在选定的元素上重建收件人条纹的丢失元素。

7. 发明公开

EP0718766A3 Method of operating a disk drive array 失效
标题翻译：一种操作磁盘阵列的方法
公开(公告)号：EP0718766A3
公开(公告)日：1999-03-17
申请号：EP95309250.9
申请日：1995-12-19
申请人： SYMBIOS LOGIC INC.
发明人： Binford, Charles D. , Gaertner, Mark A. , Denny, Steven P.
IPC分类号： G06F11/14 , G06F11/10 , G11B20/18
CPC分类号： G06F11/1084 , G06F11/1088 , G06F11/1435 , G11B20/1833
摘要： The present invention provides for a method for assuring consistency between data and parity in a independent access disk array system following a system reset or a power failure condition which interrupts the execution of one or more disk write I/O operations. The method includes the steps of: examining current drive activities to identify unfinished write I/O operations in response to the receipt of a reset signal from a host system or a low power warning signal from a uninterruptable power supply (UPS); logging information necessary to identify the unfinished write I/O operations and the array redundancy groups associated with the unfinished write I/O operations into a non-volatile memory; and checking for log entries in the non-volatile memory during a disk array subsystem initialization following the system reset, or the restoration of power following a power failure. For each one of the unfinished write I/O operations identified in the log, the method further includes the steps of: performing a bit-wise exclusive-OR of corresponding portions of the data stored within the redundancy group associated with the unfinished write I/O operations to calculate parity consistent therewith; and writing the calculated parity to the parity storage areas within the redundancy group associated the unfinished write I/O operation. For an array operating in a degraded mode, i.e., operating with a failed disk drive member, the method also logs information necessary to identify the data and parity data storage areas to which the unfinished write I/O operations map new data and parity, and some form of the old data and parity information saved to the data and parity data storage areas to which the unfinished write I/O operations map new data and parity. Following the system reset, or restoration of power, consistent parity is determined for each redundancy group associated with an unfinished write I/O operation by combining the old data and parity saved to the non-volatile memory with the data currently stored within the data storage area to which the unfinished write I/O operation maps new data.

8. 发明公开

EP2908247A4 METHOD AND APPARATUS FOR DATA RESTORATION 审中-公开
标题翻译：方法和设备进行数据恢复
公开(公告)号：EP2908247A4
公开(公告)日：2015-11-11
申请号：EP12888826
申请日：2012-11-23
申请人： HUAWEI TECH CO LTD
发明人： ZHANG WEI , ZHANG FENG , LEI XIAOSONG , XIANG RUI
IPC分类号： G06F11/10
CPC分类号： G06F11/1076 , G06F11/1008 , G06F11/1084 , G06F11/1096 , H03M13/154

9. 发明授权

EP2255287B1 SELECTING A DEDUPLICATION PROTOCOL FOR A DATA STORAGE LIBRARY 有权
标题翻译：选择DEDUPLIZIERUNGSPROTOKOLLS用于数据存储库
公开(公告)号：EP2255287B1
公开(公告)日：2012-11-07
申请号：EP09719575.4
申请日：2009-02-18
申请人： International Business Machines Corporation
发明人： HAUSTEIN, Nils , WINARSKI, Daniel, James , TROPPENS, Ulf , KLEIN, Craig, Anthony , BATES, Allen, Keith
IPC分类号： G06F11/14 , G06F11/10
CPC分类号： G06F11/1084

10. 发明公开

EP1589426A3 Redundant disk storage system 审中-公开
标题翻译：冗余磁盘存储系统
公开(公告)号：EP1589426A3
公开(公告)日：2009-08-12
申请号：EP05252512.8
申请日：2005-04-22
申请人： Hitachi Ltd.
发明人： Nakagawa, Yutaka c/o Hitachi Ltd., IPG. , Nishimoto, Akira c/o Hitachi Ltd., IPG. , Matsunami, Naoto c/o Hitachi Ltd., IPG.
IPC分类号： G06F11/10
CPC分类号： G06F11/1084 , G06F11/1088
摘要： A storage system including a plurality of interrelated storage devices enabling recovery and a guaranteed response time. When a data request comes from a host computer, and when the number of failed disk devices shows a change in a device state management table, a determination is made as to how many of the disk devices need be read. Such a determination is based on an actual reading redundancy that indicates how many of the disk devices are allowed to be in failure, at the time of data reading, for data recovery. The actual reading redundancy is the sum of the number of failed disk devices and a predetermined reading redundancy, which indicates how many of the disk devices are yet allowed to be fail whilst enabling data recovery. Then, the thus determined number of disk devices are selected in accordance with a selection factor, and a selection result is written into a read disk management table. Then, a reading process is executed with respect to the target disk devices written in the table.

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