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公开(公告)号：US08468318B2
公开(公告)日：2013-06-18
申请号：US12882877
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0611 , G06F3/06 , G06F3/061 , G06F3/0613 , G06F3/0629 , G06F3/0653 , G06F3/0655 , G06F3/0656 , G06F3/0659 , G06F3/0683 , G06F3/0688 , G06F3/0689 , G06F12/0238 , G06F12/0246 , G06F12/08 , G06F12/0802 , G06F12/0891 , G06F2003/0697 , G06F2212/60
摘要： A system and method for scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The data storage controller is configured to receive requests targeted to the data storage medium, said requests including a first type of operation and a second type of operation. The controller is further configured to schedule requests of the first type for immediate processing by said plurality of storage devices, and queue requests of the second type for later processing by the plurality of storage devices. Operations of the first type may correspond to operations with an expected relatively low latency, and operations of the second type may correspond to operations with an expected relatively high latency.
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公开(公告)号：US20120066448A1
公开(公告)日：2012-03-15
申请号：US12882864
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0611 , G06F3/061 , G06F3/0613 , G06F3/0617 , G06F3/0634 , G06F3/0659 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F11/0751 , G06F11/076 , G06F11/1076
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. Should a device exhibit an unscheduled behavior which may be indicative of the device being in an unknown state, the scheduler may schedule one or more reactive operations on the device configured to cause the device to enter a known state.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 相应的存储设备的特性用于将I / O请求调度到存储设备，以便在预测时间内保持相对一致的响应时间。 如果设备呈现可能指示设备处于未知状态的非计划行为，则调度器可以对被配置为使设备进入已知状态的设备上的一个或多个无效操作进行调度。
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公开(公告)号：US20120066447A1
公开(公告)日：2012-03-15
申请号：US12882854
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0611 , G06F3/061 , G06F3/0613 , G06F3/0629 , G06F3/0653 , G06F3/0655 , G06F3/0659 , G06F3/0688 , G06F11/0727 , G06F11/0751 , G06F11/1076 , G06F11/3034 , G06F11/3055 , G06F11/3409 , G06F11/3485 , G06F12/0804 , G06F12/0866 , G06F2212/262 , G06F2212/502
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. In order to reduce a likelihood of unscheduled behaviors of the storage devices, the storage controller is configured to schedule proactive operations on the storage devices that will reduce a number of occurrences of unscheduled behaviors.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 相应的存储设备的特性用于将I / O请求调度到存储设备，以便在预测时间内保持相对一致的响应时间。 为了减少存储设备的非预定行为的可能性，存储控制器被配置为对存储设备上的主动操作进行调度，这将减少多个未排程行为的发生。
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4.发明授权公开(公告)号：US08589625B2
公开(公告)日：2013-11-19
申请号：US12882872
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0619 , G06F3/061 , G06F3/0613 , G06F3/0646 , G06F3/0659 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F11/0727 , G06F11/0751 , G06F11/1076 , G06F12/0804 , G06F2003/0697
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The storage controller is configured to receive a read request targeted to the data storage medium, and identify at least a first storage device of the plurality of storage devices which contains data targeted by the read request. In response to either detecting or predicting the first storage device will exhibit variable performance, the controller is configured to generate a reconstruct read request configured to obtain the data from one or more devices of the plurality of storage devices other than the first storage device.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 存储控制器被配置为接收针对数据存储介质的读取请求，并且识别包含读取请求所针对的数据的多个存储设备中的至少第一存储设备。 响应于检测或预测第一存储设备将呈现可变性能，控制器被配置为生成重构读取请求，其被配置为从除第一存储设备之外的多个存储设备中的一个或多个设备获得数据。
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公开(公告)号：US08732426B2
公开(公告)日：2014-05-20
申请号：US12882864
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
CPC分类号： G06F3/0611 , G06F3/061 , G06F3/0613 , G06F3/0617 , G06F3/0634 , G06F3/0659 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F11/0751 , G06F11/076 , G06F11/1076
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. Should a device exhibit an unscheduled behavior which may be indicative of the device being in an unknown state, the scheduler may schedule one or more reactive operations on the device configured to cause the device to enter a known state.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 相应的存储设备的特性用于将I / O请求调度到存储设备，以便在预测时间内保持相对一致的响应时间。 如果设备呈现可能指示设备处于未知状态的非计划行为，则调度器可以对被配置为使设备进入已知状态的设备上的一个或多个无效操作进行调度。
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公开(公告)号：US08589655B2
公开(公告)日：2013-11-19
申请号：US12882854
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0611 , G06F3/061 , G06F3/0613 , G06F3/0629 , G06F3/0653 , G06F3/0655 , G06F3/0659 , G06F3/0688 , G06F11/0727 , G06F11/0751 , G06F11/1076 , G06F11/3034 , G06F11/3055 , G06F11/3409 , G06F11/3485 , G06F12/0804 , G06F12/0866 , G06F2212/262 , G06F2212/502
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The characteristics of corresponding storage devices are used to schedule I/O requests to the storage devices in order to maintain relatively consistent response times at predicted times. In order to reduce a likelihood of unscheduled behaviors of the storage devices, the storage controller is configured to schedule proactive operations on the storage devices that will reduce a number of occurrences of unscheduled behaviors.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 相应的存储设备的特性用于将I / O请求调度到存储设备，以便在预测时间内保持相对一致的响应时间。 为了减少存储设备的非预定行为的可能性，存储控制器被配置为对存储设备上的主动操作进行调度，这将减少多个未排程行为的发生。
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7.发明申请公开(公告)号：US20120066449A1
公开(公告)日：2012-03-15
申请号：US12882872
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
IPC分类号： G06F12/00
CPC分类号： G06F3/0619 , G06F3/061 , G06F3/0613 , G06F3/0646 , G06F3/0659 , G06F3/0665 , G06F3/0688 , G06F3/0689 , G06F11/0727 , G06F11/0751 , G06F11/1076 , G06F12/0804 , G06F2003/0697
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The storage controller is configured to receive a read request targeted to the data storage medium, and identify at least a first storage device of the plurality of storage devices which contains data targeted by the read request. In response to either detecting or predicting the first storage device will exhibit variable performance, the controller is configured to generate a reconstruct read request configured to obtain the data from one or more devices of the plurality of storage devices other than the first storage device.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 存储控制器被配置为接收针对数据存储介质的读取请求，并且识别包含读取请求所针对的数据的多个存储设备中的至少第一存储设备。 响应于检测或预测第一存储设备将呈现可变性能，控制器被配置为生成重构读取请求，其被配置为从除第一存储设备之外的多个存储设备中的一个或多个设备获得数据。
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公开(公告)号：US20120066435A1
公开(公告)日：2012-03-15
申请号：US12882877
申请日：2010-09-15
申请人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
发明人： John Colgrove , John Hayes , Bo Hong , Feng Wang , Ethan Miller , Craig Harmer
CPC分类号： G06F3/0611 , G06F3/06 , G06F3/061 , G06F3/0613 , G06F3/0629 , G06F3/0653 , G06F3/0655 , G06F3/0656 , G06F3/0659 , G06F3/0683 , G06F3/0688 , G06F3/0689 , G06F12/0238 , G06F12/0246 , G06F12/08 , G06F12/0802 , G06F12/0891 , G06F2003/0697 , G06F2212/60
摘要： A system and method for effectively scheduling read and write operations among a plurality of solid-state storage devices. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array comprises an I/O scheduler. The data storage controller is configured to receive requests targeted to the data storage medium, said requests including a first type of operation and a second type of operation. The controller is further configured to schedule requests of the first type for immediate processing by said plurality of storage devices, and queue requests of the second type for later processing by the plurality of storage devices. Operations of the first type may correspond to operations with an expected relatively low latency, and operations of the second type may correspond to operations with an expected relatively high latency.
摘要翻译： 一种用于在多个固态存储设备之间有效地调度读取和写入操作的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器包括I / O调度器。 数据存储控制器被配置为接收针对数据存储介质的请求，所述请求包括第一类操作和第二类操作。 所述控制器还被配置为调度所述第一类型的请求以供所述多个存储设备立即处理，以及所述第二类型的队列请求以供所述多个存储设备稍后处理。 第一类型的操作可以对应于具有预期的相对低的等待时间的操作，并且第二类型的操作可以对应于具有预期的较高等待时间的操作。
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公开(公告)号：US20120079190A1
公开(公告)日：2012-03-29
申请号：US12892895
申请日：2010-09-28
申请人： John Colgrove , John Hayes , Bo Hong , Ethan Miller
发明人： John Colgrove , John Hayes , Bo Hong , Ethan Miller
CPC分类号： G06F11/1076 , G06F3/0605 , G06F3/0688 , G06F11/3034 , G06F11/3055 , G06F2211/1057 , G06F2211/1059
摘要： A system and method for offset protection data in a RAID array. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to store user data in a first page of a first storage device of the plurality of storage devices; generate intra-device protection data corresponding to the user data, and store the intra-device protection data at a first offset within the first page. The controller is further configured to generate inter-device protection data corresponding to the first page, and store the inter-device protection data at a second offset within a second page in a second storage device of the plurality of storage devices, wherein the first offset is different from the second offset.
摘要翻译： RAID阵列中偏移保护数据的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器被配置为将用户数据存储在多个存储设备中的第一存储设备的第一页中; 生成对应于用户数据的设备内保护数据，并将设备内保护数据存储在第一页内的第一偏移处。 所述控制器还被配置为产生对应于所述第一页的设备间保护数据，并且将所述设备间保护数据存储在所述多个存储设备中的第二存储设备中的第二页内的第二偏移处，其中所述第一偏移 与第二偏移不同。
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10.发明授权公开(公告)号：US09348696B2
公开(公告)日：2016-05-24
申请号：US12896675
申请日：2010-10-01
申请人： John Colgrove , John Hayes , Bo Hong , Ethan Miller
发明人： John Colgrove , John Hayes , Bo Hong , Ethan Miller
CPC分类号： G06F11/1076 , G06F11/3034 , G06F11/3055 , G06F2211/1057 , G06F2211/1059 , H04L67/1097
摘要： A system and method for dynamic RAID geometries. A computer system comprises client computers and data storage arrays coupled to one another via a network. A data storage array utilizes solid-state drives and Flash memory cells for data storage. A storage controller within a data storage array is configured to configure a first subset of the storage devices for use in a first RAID layout, the first RAID layout including a first set of redundant data. The controller further configures a second subset of the storage devices for use in a second RAID layout, the second RAID layout including a second set of redundant data. Additionally, when writing a stripe, the controller may select from any of the plurality of storage devices for one or more of the first RAID layout, the second RAID layout, and storage of redundant data by the additional logical device.
摘要翻译： 用于动态RAID几何的系统和方法。 计算机系统包括经由网络彼此耦合的客户端计算机和数据存储阵列。 数据存储阵列利用固态驱动器和闪存单元进行数据存储。 数据存储阵列中的存储控制器被配置为配置用于第一RAID布局的存储设备的第一子集，所述第一RAID布局包括第一组冗余数据。 控制器还配置用于第二RAID布局的存储设备的第二子集，第二RAID布局包括第二组冗余数据。 此外，当写入条带时，控制器可以从多个存储设备中的任何一个选择第一RAID布局，第二RAID布局以及附加逻辑设备对冗余数据的存储中的一个或多个。
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