公开(公告)号：US20080046612A1

公开(公告)日：2008-02-21

申请号：US11852125

申请日：2007-09-07

Applicant: Brent Beardsley ,  Minh-Ngoc Huynh ,  William Micka ,  Satish Penmetsa ,  Richard Schaeffer ,  Kaukab Uddin

Inventor： Brent Beardsley ,  Minh-Ngoc Huynh ,  William Micka ,  Satish Penmetsa ,  Richard Schaeffer ,  Kaukab Uddin

IPC: G06F3/00

CPC classification number: G06F13/385 ,  G06F13/42 ,  G06F2213/0036

Abstract: A method, apparatus and program storage device for providing asynchronous status messaging in a data storage system Asynchronous events are returned from a target to an initiator in response to a Read Message from the initiator. The return status message may or may not be associated with a previously given command or Logical Unit (LUN).

Abstract translation: 一种用于在数据存储系统中提供异步状态消息的方法，装置和程序存储装置响应于来自发起者的读取消息，异步事件从目标返回到发起者。 返回状态消息可以或可以不与先前给出的命令或逻辑单元（LUN）相关联。

公开(公告)号：US20050138318A1

公开(公告)日：2005-06-23

申请号：US10743664

申请日：2003-12-22

Applicant: Kevin Ash ,  Susan Candelaria ,  Joseph Hyde ,  Thomas Jarvis ,  William Micka ,  Kenneth Todd ,  Gail Spear

Inventor： Kevin Ash ,  Susan Candelaria ,  Joseph Hyde ,  Thomas Jarvis ,  William Micka ,  Kenneth Todd ,  Gail Spear

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

CPC classification number: G06F3/0652 ,  G06F3/061 ,  G06F3/0689 ,  G06F12/0804 ,  G06F12/0868

Abstract: A method to initialize information disposed in an information storage and retrieval system comprising a data cache and one or more information storage media comprising a plurality of addresses. The method receives an initialization command, where that initialization command comprises a range of addresses and, optionally, an initialization pattern, where the plurality of addresses includes the range of addresses. The method forms and saves state information, where that state information includes the initialization pattern, and generates and saves a plurality of indicators, where that plurality of indicators includes an indicator for each track comprising the range of addresses. The method sets each of those indicators to a first value thereby indicating special handling, and provides an ending status signal, such that the receiving step, forming step, generating step, setting step, and providing step are performed substantially synchronously.

Abstract translation: 一种初始化设置在信息存储和检索系统中的信息的方法，包括数据高速缓存和包括多个地址的一个或多个信息存储介质。 该方法接收初始化命令，其中该初始化命令包括地址范围和可选择的初始化模式，其中多个地址包括地址范围。 该方法形成并保存状态信息，其中该状态信息包括初始化模式，并且生成并保存多个指示符，其中多个指示符包括包括地址范围的每个轨道的指示符。 该方法将每个指示器设置为第一值，从而指示特殊处理，并提供结束状态信号，使得接收步骤，形成步骤，生成步骤，设置步骤和提供步骤基本上同步地进行。

公开(公告)号：US20050071586A1

公开(公告)日：2005-03-31

申请号：US10675317

申请日：2003-09-29

Applicant: Robert Bartfai ,  William Micka ,  Thomas Jarvis ,  Olympia Gluck ,  Michael Factor ,  Irit Dolev ,  Warren Stanley ,  Martin Tross ,  Sam Werner ,  Aviad Zlotnick ,  Gail Spear

Inventor： Robert Bartfai ,  William Micka ,  Thomas Jarvis ,  Olympia Gluck ,  Michael Factor ,  Irit Dolev ,  Warren Stanley ,  Martin Tross ,  Sam Werner ,  Aviad Zlotnick ,  Gail Spear

IPC: G06F12/00 ,  G06F12/08

CPC classification number: G06F12/0835 ,  G06F12/0826

Abstract: Disclosed is a technique for maintaining consistency of data. One or more blocks of data identified by a first structure are copied to form a consistent set of data. While not acknowledging completion of write requests to any blocks of data, a second structure is created, wherein the second structure indicates which blocks of data are modified while the consistent set of data is being formed. Also disclosed is a technique for asynchronous copy. Indicators are updated in a first structure for one or more blocks of data, wherein each indicator in the first structure indicates whether a corresponding block of data was modified since the block of data was last sent to remote storage. While copying the blocks of data identified by the indicators in the first structure as having been modified since the blocks of data were last sent to remote storage, indicators in a second structure are updated for the one or more blocks of data, wherein each indicator in the second structure indicates whether a corresponding block of data was modified while a consistent set of data is being formed.

Abstract translation: 公开了一种保持数据一致性的技术。 由第一结构标识的一个或多个数据块被复制以形成一致的数据集。 在不向任何数据块确认写请求的完成的情况下，创建第二结构，其中第二结构指示在形成一致的数据集时修改数据块。 还公开了用于异步复制的技术。 指示符以用于一个或多个数据块的第一结构进行更新，其中第一结构中的每个指示符指示是否修改了相应的数据块，因为数据块最后发送到远程存储。 由于数据块最后发送到远程存储，将第一结构中由指示符标识的数据块复制为已被修改，因此对于一个或多个数据块更新了第二结构中的指示符，其中每个指示符 第二结构指示在形成一致的一组数据时是否修改相应的数据块。

公开(公告)号：US20050251634A1

公开(公告)日：2005-11-10

申请号：US10839034

申请日：2004-05-05

Applicant: Helena Burton ,  Michael Factor ,  Timothy Griffin ,  Thomas Jarvis ,  William Micka ,  Yoram Novick ,  Gail Spear ,  Sam Werner

Inventor： Helena Burton ,  Michael Factor ,  Timothy Griffin ,  Thomas Jarvis ,  William Micka ,  Yoram Novick ,  Gail Spear ,  Sam Werner

IPC: G06F13/10 ,  G06F3/06 ,  G06F11/20 ,  G06F12/16

CPC classification number: G06F3/065 ,  G06F3/0611 ,  G06F3/067 ,  G06F11/1458 ,  G06F2201/82

Abstract: A target data storage system comprises a peer-to-peer communication link interface for linking the target to a source data storage system, and data storage for storing point in time copy data received from the source via the peer-to-peer communication link interface. Information is established at the target relating logical identification of the point in time copy data to point in time copy data stored at the target and to point in time copy data stored at the source, such that the information references the data storage system having requested point in time copy data. A controller of the target accesses requested point in time copy data at the target if the table indicates that the requested point in time copy data is available at the target; else obtains the requested point in time copy data from the source via the peer-to-peer communication link interface.

Abstract translation: 目标数据存储系统包括用于将目标链接到源数据存储系统的点对点通信链路接口以及用于通过对等通信链路接口从源接收的时间点复制数据的数据存储器 。 在目标处建立信息，将时间点的复制数据的时间点的逻辑识别与存储在目标上的时间复制数据相关联，并将时间点复制存储在源中的数据，使得信息引用具有请求点的数据存储系统 及时复制数据。 如果该表指示所请求的时间点复制数据在目标上可用，则请求时间点的目标访问控制器复制数据在目标上; 否则通过对等通信链路接口从源中获得请求的时间点复制数据。

公开(公告)号：US20050251633A1

公开(公告)日：2005-11-10

申请号：US10838767

申请日：2004-05-04

Applicant: William Micka ,  Gail Spear ,  Sam Werner

Inventor： William Micka ,  Gail Spear ,  Sam Werner

IPC: G06F12/16

CPC classification number: G06F11/2076 ,  G06F11/2058 ,  G06F11/2074 ,  G06F11/2082

Abstract: An apparatus, system and method for synchronizing an asynchronous mirror volume using a synchronous mirror volume by tracking change information when data is written to a primary volume and not yet written to an asynchronous mirror, and storing the change information on both the primary storage system and the synchronous mirror system. In the event the primary storage system becomes unavailable, the asynchronous mirror is synchronized by copying data identified by the change information stored in the synchronous mirror system and using the synchronous mirror as the copy data source.

Abstract translation: 一种用于使用同步镜像卷同步异步镜像卷的装置，系统和方法，所述装置，系统和方法通过在将数据写入主卷并且尚未写入到异步镜中时跟踪改变信息，并且将改变信息存储在主存储系统和 同步镜系统。 在主存储系统不可用的情况下，通过复制由同步镜像系统中存储的变化信息识别的数据并使用同步镜作为复制数据源来同步异步镜像。

公开(公告)号：US20050081091A1

公开(公告)日：2005-04-14

申请号：US10674866

申请日：2003-09-29

Applicant: Robert Bartfai ,  Michael Factor ,  Gail Spear ,  William Micka

Inventor： Robert Bartfai ,  Michael Factor ,  Gail Spear ,  William Micka

IPC: G06F11/00 ,  G06F11/20

CPC classification number: G06F11/2082 ,  G06F11/2058 ,  G06F11/2071

Abstract: A method of recovery from a data storage system failure in a data storage system having a host computer writing data to a first storage unit with a first storage controller synchronously mirroring the data to a second storage unit, and with a second storage controller asynchronously mirroring the data to a third storage unit. The method begins with the detection of a failure associated with the first storage unit. Upon detection of the error or failure associated with the first storage unit, the synchronous data mirroring relationship between the first storage unit and the second storage unit is terminated and the host is directed to write data updates directly to the second storage unit. Upon correction of the failure associated with the first storage unit, the asynchronous mirroring of data updates from the second storage unit to the third storage unit is suspended and synchronous mirroring of the data updates in a reverse direction, from the second storage unit to the first storage unit, is commenced. When a full duplex state is reached between the first storage unit and the second storage unit, the synchronous PPRC relationship with the first storage volume mirroring data to the second storage volume may be reestablished and host I/O writes to the first storage unit may be resumed.

Abstract translation: 一种从具有主机的数据存储系统中的数据存储系统故障恢复的方法，所述数据存储系统具有主计算机，用第一存储控制器向第一存储单元写入数据，所述第一存储控制器将所述数据同步地镜像到第二存储单元，并且与第二存储控制器异步镜像 数据到第三存储单元。 该方法开始于检测与第一存储单元相关联的故障。 在检测到与第一存储单元相关联的错误或故障时，第一存储单元和第二存储单元之间的同步数据镜像关系被终止，并且主机将数据更新直接写入第二存储单元。 在校正与第一存储单元相关联的故障时，暂停从第二存储单元到第三存储单元的数据更新的异步镜像，并且数据的同步镜像沿相反方向从第二存储单元更新到第一存储单元 存储单元，开始。 当在第一存储单元和第二存储单元之间达到全双工状态时，可以重新建立与第一存储卷镜像数据到第二存储卷的同步PPRC关系，并且可以向第一存储单元写入主机I / O 恢复。

公开(公告)号：US20070220223A1

公开(公告)日：2007-09-20

申请号：US11384798

申请日：2006-03-17

Applicant: Kenneth Boyd ,  Lisa Gundy ,  Nils Kaving ,  Robert Kern ,  Gregory McBride ,  Alan McClure ,  William Micka ,  David Petersen ,  Gail Spear ,  Warren Stanley

Inventor： Kenneth Boyd ,  Lisa Gundy ,  Nils Kaving ,  Robert Kern ,  Gregory McBride ,  Alan McClure ,  William Micka ,  David Petersen ,  Gail Spear ,  Warren Stanley

IPC: G06F12/16

CPC classification number: G06F11/2058 ,  G06F11/2066 ,  G06F11/2069 ,  G06F11/2082

Abstract: Provided are a method, system, and program for remote copying of updates to primary and secondary storage locations subject to a copy relationship. A first copy relationship is established between first and second storage locations in a first storage system and second storage system, respectively, wherein updates to the first storage locations are copied to the second storage locations. A second copy relationship is established between the first storage locations in the first copy relationship and third storage locations in a third storage system, wherein updates to the first storage locations are indicated in a first bitmap. A suspended third copy relationship is established between the second storage locations in the first copy relationship and the third storage locations, wherein updates to the second storage locations are indicated in a second bitmap. Updates are copied from the first or second storage locations to the third storage locations, wherein the first or second bitmap is capable of being used to determine updates for the first or second storage locations to copy to the third storage locations.

Abstract translation: 提供了一种方法，系统和程序，用于远程复制受副本关系的主要和次要存储位置的更新。 分别在第一存储系统和第二存储系统中的第一和第二存储位置之间建立第一复制关系，其中将第一存储位置的更新复制到第二存储位置。 在第一复制关系中的第一存储位置和第三存储系统中的第三存储位置之间建立第二复制关系，其中在第一位图中指示对第一存储位置的更新。 在第一复制关系中的第二存储位置和第三存储位置之间建立暂停的第三复制关系，其中在第二位图中指示对第二存储位置的更新。 将更新从第一或第二存储位置复制到第三存储位置，其中第一或第二位图能够用于确定第一或第二存储位置的更新以复制到第三存储位置。

公开(公告)号：US20070156983A1

公开(公告)日：2007-07-05

申请号：US11325032

申请日：2006-01-03

Applicant: Robert Kern ,  Kenneth Boyd ,  Gregory McBride ,  Gail Spear ,  Robert Bartfai ,  William Micka ,  Kenneth Day

Inventor： Robert Kern ,  Kenneth Boyd ,  Gregory McBride ,  Gail Spear ,  Robert Bartfai ,  William Micka ,  Kenneth Day

IPC: G06F12/16

CPC classification number: G06F11/2064 ,  G06F11/2069 ,  G06F11/2071

Abstract: Provided are a method, system, and program for maintaining consistency when mirroring data using different copy technologies. Update groups having updates to primary storage locations are formed using a first copy technology. The updates in the update groups are copied to secondary storage locations. Update groups having updates to primary storage locations are formed using a second copy technology, wherein the updates in the update groups are copied to secondary storage locations. Indication is made in a data structure of a time of an update in response to including the update in one of the update groups formed using the first copy technology. Indication is also made in the data structure of a time of the update group formed using the second copy technology.

Abstract translation: 提供了一种在使用不同的复制技术镜像数据时保持一致性的方法，系统和程序。 使用第一复制技术形成具有对主存储位置的更新的更新组。 更新组中的更新将复制到辅助存储位置。 使用第二复制技术形成具有对主存储位置的更新的更新组，其中更新组中的更新被复制到辅助存储位置。 响应于在使用第一复制技术形成的更新组之一中包括更新而在更新的时间的数据结构中进行指示。 在使用第二复制技术形成的更新组的时间的数据结构中也进行指示。

公开(公告)号：US20070022267A1

公开(公告)日：2007-01-25

申请号：US11534136

申请日：2006-09-21

Applicant: Sam Werner ,  William Micka ,  Sivan Tal ,  Ifat Nuriel ,  Sheli Rahav ,  Gail Spear ,  Warren Stanley

Inventor： Sam Werner ,  William Micka ,  Sivan Tal ,  Ifat Nuriel ,  Sheli Rahav ,  Gail Spear ,  Warren Stanley

IPC: G06F12/16

CPC classification number: G06F11/2064 ,  G06F3/0605 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/067 ,  G06F11/2076

Abstract: Provided are a method, system, and article of manufacture for copying storage. Copy operations are performed on source storage units to copy to target storage units, wherein the copy operations create a consistent copy of the source storage units in the target storage units. While performing a copy operation to copy from one source storage unit to one target storage unit, a write operation is restricted from being performed on the one source storage unit, until the copy operations have been performed on the source storage units.

Abstract translation: 提供了用于复制存储的方法，系统和制品。 在源存储单元上执行复制操作以复制到目标存储单元，其中复制操作在目标存储单元中创建源存储单元的一致副本。 在执行从一个源存储单元复制到一个目标存储单元的复制操作时，限制在一个源存储单元上执行写入操作，直到对源存储单元执行复制操作。

公开(公告)号：US20050228954A1

公开(公告)日：2005-10-13

申请号：US11144318

申请日：2005-06-03

Applicant: Michael Factor ,  Shachar Fienblit ,  Olympia Gluck ,  Joseph Hyde ,  Thomas Jarvis ,  William Micka ,  Gail Spear ,  Martin Tross ,  Aviad Zlotnick

Inventor： Michael Factor ,  Shachar Fienblit ,  Olympia Gluck ,  Joseph Hyde ,  Thomas Jarvis ,  William Micka ,  Gail Spear ,  Martin Tross ,  Aviad Zlotnick

IPC: G06F11/14 ,  G06F11/20 ,  G06F12/00

CPC classification number: G06F11/2066 ,  G06F11/1451 ,  G06F11/1658 ,  G06F11/1666 ,  G06F11/20 ,  G06F11/2074

Abstract: Disclosed is a method, system, and program for managing metadata in cache. A first policy is used to determine when to remove data from a primary cache, and a second policy is used to determine when to remove data from a metadata cache.

Abstract translation: 公开了一种用于管理缓存中的元数据的方法，系统和程序。 第一个策略用于确定何时从主缓存中删除数据，第二个策略用于确定何时从元数据缓存中删除数据。