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41. 发明授权

US06424999B1 System and method for restoring previously backed-up data in a mass storage subsystem 有权
标题翻译：用于恢复大容量存储子系统中先前备份的数据的系统和方法
公开(公告)号：US06424999B1
公开(公告)日：2002-07-23
申请号：US09268494
申请日：1999-03-11
申请人： Dan Arnon , Yuval Ofek
发明人： Dan Arnon , Yuval Ofek
IPC分类号： G06F1516
CPC分类号： G06F11/1469 , Y10S707/99953
摘要： A system comprising a mass storage subsystem, as a master device and backup subsystem, as a slave device, the slave device transferring data items to the master device during a restore operation. Each data item to be restored is identified by a data item identifier. The master device initially provides the slave device with a list of data item identifiers and the slave device receives the data item identifier list from the master device and order the data item identifiers thereon in an optimal order for transfer to the master device, the ordering based on the ordering of the data items on storage media on which they are stored. The master device, in each of a plurality of iterations, receives from the slave device data item identifiers identifying a data item transferred during a previous iteration and a data item to be transferred during the current iteration and requests the slave device to transfer the data item to be transferred. The master device uses the data item identifier that it receives from the slave device identifying the data item transferred during the previous iteration to confirm that the data item corresponded to the data item that was to have been transferred during the previous iteration. The slave device, in each iteration, provides the master device with the data item identifiers identifying the data item transferred during the previous iteration and the data item to be transferred during the current iteration, and transfers the data item to be transferred during the iteration to the master device when requested by the master device.
摘要翻译：一种包括作为主设备和备用子系统的大容量存储子系统作为从设备的系统，所述从设备在恢复操作期间将数据项传送到主设备。要恢复的每个数据项由数据项标识符标识。主设备最初向从设备提供数据项标识符的列表，并且从设备从主设备接收数据项标识符列表，并以最佳顺序对数据项标识符进行命令以传送到主设备，基于排序关于在存储介质上的数据项的排序。在多个迭代中的每一个中，主设备从从设备接收标识在先前迭代期间传送的数据项的数据项标识符和当前迭代期间要传送的数据项，并请求从设备传送数据项被转移。主设备使用从从设备接收的数据项标识符，标识在先前迭代期间传送的数据项，以确认该数据项对应于在先前迭代期间被传送的数据项。在每次迭代中，从设备为主设备提供标识在前一次迭代期间传送的数据项的数据项标识符和当前迭代期间要传送的数据项，并将要在迭代期间传送的数据项传送到主设备在主设备请求时。

42. 发明授权

US6157991A Method and apparatus for asynchronously updating a mirror of a source device 失效
标题翻译：用于异步更新源设备的镜像的方法和装置
公开(公告)号：US6157991A
公开(公告)日：2000-12-05
申请号：US053420
申请日：1998-04-01
申请人： Dan Arnon
发明人： Dan Arnon
IPC分类号： G06F12/16 , G06F3/06 , G06F11/20 , G06F12/00
CPC分类号： G06F11/2074 , G06F11/2064 , G06F11/2066
摘要： In a computer system including a CPU, a first storage system coupled to the CPU, a second storage system, and a communication link coupling the second storage system to the first storage system, a method and apparatus for asynchronously mirroring, to the second storage system, a plurality of units of data written by the CPU to the first storage system. In one aspect of the invention, the CPU writes units of data to the first storage system in a first order, and the units of data are asynchronously transmitted over the communication link from the first storage system to the second storage system in a second order that is different than the first order. In another aspect, the units of data are committed in the second storage system in an order that is independent of the order in which the units of data are received at the second storage system. In a further aspect of the invention, a packet of information is transmitted over the communication link to the target storage system to specify a commitment order in which the units of data should be committed in the target storage system. In another aspect of the invention, a single copy of each of the units of data is written into the first storage device, without buffering a copy to support asynchronous mirroring. In a further aspect, the storage locations in the first storage system are organized into a plurality of consistency sets, and the units of data are asynchronously transmitted over the communication link so that each consistency set has a representation in the second storage system that is consistent with a valid representation of the consistency set in the first storage system at some point in time.
摘要翻译：在包括CPU，耦合到CPU的第一存储系统，第二存储系统和将第二存储系统耦合到第一存储系统的通信链路的计算机系统中，用于异步镜像到第二存储系统的方法和装置，由CPU向第一存储系统写入的多个数据单元。在本发明的一个方面，CPU以第一顺序向第一存储系统写入数据单元，并且数据单元以第二顺序通过通信链路从第一存储系统异步发送到第二存储系统，与第一个订单不同。在另一方面，数据单元以与在第二存储系统上接收数据单元的顺序无关的顺序在第二存储系统中提交。在本发明的另一方面，通过通信链路将信息包发送到目标存储系统，以指定应在目标存储系统中提交数据单元的承诺顺序。在本发明的另一方面，每个数据单元的单个副本被写入第一存储设备，而不缓冲副本以支持异步镜像。在另一方面，第一存储系统中的存储位置被组织成多个一致性集合，并且数据单元通过通信链路异步发送，使得每个一致性集合具有在一致的第二存储系统中的表示具有在某个时间点在第一个存储系统中设置的一致性的有效表示。

43. 发明授权

US6112257A Dynamic adjustment of mirror service policy for logical volumes in a disk drive system based on collected statistics 失效
标题翻译：基于收集的统计信息，动态调整磁盘驱动器系统中逻辑卷的镜像服务策略
公开(公告)号：US6112257A
公开(公告)日：2000-08-29
申请号：US936122
申请日：1997-09-24
申请人： Robert S. Mason, Jr. , Yuval Ofek , Natan Vishlitzky , Dan Arnon , Eitan Bachmat
发明人： Robert S. Mason, Jr. , Yuval Ofek , Natan Vishlitzky , Dan Arnon , Eitan Bachmat
IPC分类号： G06F3/06 , G06F3/00 , G06F9/00 , G06F11/20 , G06F12/00 , G06F13/00
CPC分类号： G06F11/2066 , G06F11/2069 , G06F2003/0697 , G06F3/0601
摘要： The invention relates generally to mass storage systems, and in particular to mass storage systems in which stored logical volumes are duplicated in mirrored form. The system includes a method for dynamically adjusting the mirror service policy for a disk drive system by periodically collecting statistics describing the reading and writing of data to mirrored logical volumes of the system in successive time periods and determining, from time to time, from the collected statistics, whether the mirror service policy should continue or should change. In particular, the system takes into account activity levels at the physical devices and results in more efficient accessing of logical volume pairs as well as a better balance of loading and accessing the logical volumes.
摘要翻译：本发明一般涉及大容量存储系统，特别涉及存储逻辑卷以镜像形式复制的大容量存储系统。该系统包括一种用于通过周期性地收集描述在连续时间段内将数据读取和写入系统的镜像逻辑卷的统计信息来统计磁盘驱动器系统的镜像服务策略的方法，并且不时地从收集的统计，镜像服务策略是应该继续还是应该改变。特别地，系统考虑到物理设备的活动级别，并且导致对逻辑卷对的更有效的访问以及加载和访问逻辑卷的更好的平衡。

44. 发明授权

US07107395B1 Apparatus and methods for operating a computer storage system 有权
标题翻译：用于操作计算机存储系统的装置和方法
公开(公告)号：US07107395B1
公开(公告)日：2006-09-12
申请号：US09224637
申请日：1998-12-31
申请人： Yuval Ofek , Zoran Cakeljic , Haim Bitner , Sharon Galtzur , Ariel J. Ish-Shalom , Nadav Kedem , Samuel Krikler , Dan Arnon
发明人： Yuval Ofek , Zoran Cakeljic , Haim Bitner , Sharon Galtzur , Ariel J. Ish-Shalom , Nadav Kedem , Samuel Krikler , Dan Arnon
IPC分类号： G06F13/14
CPC分类号： G06F11/1464 , G06F3/0601 , G06F11/1451 , G06F11/1456 , G06F11/1469 , G06F11/2056 , G06F2003/0697 , Y10S707/99953 , Y10S707/99955
摘要： Method and apparatus are disclosed for a computer system including host computers and storage elements. The host computers may be configured into a host domain and the storage elements configured into a storage domain. The storage domain includes a plurality of primary storage devices and a secondary storage device. The secondary storage device may be coupled to a plurality of the primary storage devices through a network. In another embodiment, the secondary storage device may send and receive information from a heterogeneous set of host computers. In another embodiment, connections for transfer of data onto the secondary storage element are created automatically.
摘要翻译：公开了一种包括主计算机和存储元件的计算机系统的方法和装置。主计算机可以被配置成主机域，并且将存储元件配置到存储域中。存储域包括多个主存储设备和辅助存储设备。辅助存储设备可以通过网络耦合到多个主存储设备。在另一个实施例中，辅助存储设备可以从异构的主机计算机集合发送和接收信息。在另一个实施例中，自动地创建用于将数据传送到辅助存储元件上的连接。

45. 发明授权

US06839763B1 System and method for expediting transfer of data from a local storage facility to a remote storage facility 有权
标题翻译：用于加速将数据从本地存储设备传输到远程存储设施的系统和方法
公开(公告)号：US06839763B1
公开(公告)日：2005-01-04
申请号：US09804479
申请日：2001-02-28
申请人： Peter Kamvysselis , Dan Arnon
发明人： Peter Kamvysselis , Dan Arnon
IPC分类号： H04L29/06 , H04L29/08 , G06F15/16
CPC分类号： H04L29/06 , H04L67/1095 , H04L69/329
摘要： A data transfer arrangement transfers data from a source device, such as a local mass storage facility, to a destination device, such as a remote storage facility. The data transfer arrangement comprises a source device and a destination device. The source device transfers to the destination device a data block including data and padding along with a source check value that is a function of the data and selectively the padding, and a check indication indicating whether the check value is the function of the data alone, or the data and the padding. The destination device, after receiving the data block, source check value and check indication, generates a destination check value that is the function of the data alone, or the data and the padding, based on the check indication, and uses the source and destination check values to determine whether the data block was correctly received.
摘要翻译：数据传输装置将数据从诸如本地大容量存储设备的源设备传送到诸如远程存储设备的目的地设备。数据传输装置包括源装置和目的装置。源设备向目的地设备传送包括数据和填充的数据块以及作为数据的功能的源检查值和有选择地填充的数据块，以及指示检查值是否仅是数据的功能的检查指示，或数据和填充。目的地设备在接收到数据块，源检查值和检查指示之后，根据检查指示产生作为数据单独或数据和填充的功能的目的地检查值，并使用源和目的地检查值以确定数据块是否被正确接收。

46. 发明授权

US06775739B1 Mirrored drive performance using matching algorithms 失效
标题翻译：使用匹配算法镜像驱动器性能
公开(公告)号：US06775739B1
公开(公告)日：2004-08-10
申请号：US09058590
申请日：1998-04-10
申请人： Eitan Bachmat , Dan Arnon
发明人： Eitan Bachmat , Dan Arnon
IPC分类号： G06F1216
CPC分类号： G06F3/0613 , G06F3/0631 , G06F3/0689 , G06F11/2069
摘要： The invention relates generally to mass storage systems, and in particular to mass storage systems in which stored logical volumes are duplicated in mirrored form. The system includes a method for dynamically maximizing separation of said logical volumes by adjusting the mirror service policy for a disk drive system. Statistics are periodically collected describing the reading and writing of data to mirrored logical volumes of the system in successive time periods and, from time to time, based upon the collected statistics, activity levels for the logical volumes are determined. A matching algorithm, weighted or unweighted, maximizes separation of the logical volumes and minimizes average physical drive seek times. In particular, the system takes into account activity levels at the physical devices and results in more efficient accessing of logical volume pairs as well as a better balance or loading of logical volumes.
摘要翻译：本发明一般涉及大容量存储系统，特别涉及存储逻辑卷以镜像形式复制的大容量存储系统。该系统包括通过调整磁盘驱动器系统的镜像服务策略来动态地最大化所述逻辑卷的分离的方法。定期收集统计数据，描述在连续的时间段内将数据读取和写入系统的镜像逻辑卷，并根据收集的统计信息确定逻辑卷的活动级别。加权或未加权的匹配算法使逻辑卷的分离最大化，并使平均物理驱动器寻道时间最小化。特别地，系统考虑到物理设备的活动级别，并且导致更有效地访问逻辑卷对以及更好地平衡或加载逻辑卷。

47. 发明授权

US06487561B1 Apparatus and methods for copying, backing up, and restoring data using a backup segment size larger than the storage block size 有权
标题翻译：使用大于存储块大小的备份段大小复制，备份和恢复数据的设备和方法
公开(公告)号：US06487561B1
公开(公告)日：2002-11-26
申请号：US09224896
申请日：1998-12-31
申请人： Yuval Ofek , Zoran Cakeljic , Samuel Krikler , Sharon Galtzur , Michael Hirsch , Dan Arnon , Peter Kamvysselis
发明人： Yuval Ofek , Zoran Cakeljic , Samuel Krikler , Sharon Galtzur , Michael Hirsch , Dan Arnon , Peter Kamvysselis
IPC分类号： G06F1730
CPC分类号： G06F11/1451 , G06F11/1464 , G06F17/30067 , Y10S707/99952 , Y10S707/99953 , Y10S707/99955
摘要： Method and apparatus for copying, transferring, backing up and restoring data are disclosed. The data can be copied, backed up or restored in segments sizes larger than the data blocks which comprise a logical object. In some embodiments, the segment can correspond to a track of a primary storage device and the data blocks to a fixed size block. In some instances, copying, storage and transfer of the segments which include multiple data blocks can result in transfer of a data block not in a logical object.
摘要翻译：公开了用于复制，传送，备份和恢复数据的方法和装置。可以以大于构成逻辑对象的数据块的段大小复制，备份或还原数据。在一些实施例中，段可以对应于主存储设备的轨道，并且将数据块对应到固定大小的块。在一些情况下，包括多个数据块的段的复制，存储和传送可导致不在逻辑对象中的数据块的传送。

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