公开(公告)号：US07627687B2

公开(公告)日：2009-12-01

申请号：US11536160

申请日：2006-09-28

申请人： Shlomo Ahal ,  Assaf Natanzon ,  Yuval Aharoni ,  Saar Cohen ,  Tomer Ben-or

发明人： Shlomo Ahal ,  Assaf Natanzon ,  Yuval Aharoni ,  Saar Cohen ,  Tomer Ben-or

IPC分类号： G06F15/16 ,  G06F12/00 ,  G06F13/32 ,  G06F11/00

CPC分类号： G06F17/30575 ,  G06F11/1471 ,  G06F11/202 ,  G06F11/2066 ,  G06F11/2074 ,  G06F11/2094 ,  G06F11/2097 ,  Y10S707/99953

摘要： Method and apparatus to provide a data replication system to receive a data transfer request from a first component at a transmitter module in a continuous data replication system having a production site and a backup site, the production site having a transmitter module and a transmitter credit mechanism, the transmitter module to transmit data over a network for replication in the backup site, detect a high-load condition at the transmitter module, and modify a flow of credits from the transmitter credit mechanism to the first component to reduce or stop data flow to the transmitter module.

摘要翻译： 一种提供数据复制系统的方法和装置，用于在具有生产现场和备用站点的连续数据复制系统中的发射机模块处的第一组件接收数据传输请求，所述生产现场具有发射机模块和发射机信用机制 ，所述发射机模块通过网络传输数据以在所述备份站点中复制，检测所述发射机模块处的高负载状况，并将所述信用流从所述发射机信用机制修改为所述第一组件以减少或停止数据流到 发射机模块。

公开(公告)号：US20080082591A1

公开(公告)日：2008-04-03

申请号：US11536160

申请日：2006-09-28

申请人： Shlomo Ahal ,  Assaf Natanzon ,  Yuval Aharoni ,  Saar Cohen ,  Tomer Ben-or

发明人： Shlomo Ahal ,  Assaf Natanzon ,  Yuval Aharoni ,  Saar Cohen ,  Tomer Ben-or

IPC分类号： G06F17/30

CPC分类号： G06F17/30575 ,  G06F11/1471 ,  G06F11/202 ,  G06F11/2066 ,  G06F11/2074 ,  G06F11/2094 ,  G06F11/2097 ,  Y10S707/99953

摘要： Method and apparatus to provide a data replication system to receive a data transfer request from a first component at a transmitter module in a continuous data replication system having a production site and a backup site, the production site having a transmitter module and a transmitter credit mechanism, the transmitter module to transmit data over a network for replication in the backup site, detect a high-load condition at the transmitter module, and modify a flow of credits from the transmitter credit mechanism to the first component to reduce or stop data flow to the transmitter module.

摘要翻译： 一种提供数据复制系统的方法和装置，用于在具有生产现场和备用站点的连续数据复制系统中的发射机模块处的第一组件接收数据传输请求，所述生产现场具有发射机模块和发射机信用机制 ，所述发射机模块通过网络传输数据以在所述备份站点中复制，检测所述发射机模块处的高负载状况，并将所述信用流从所述发射机信用机制修改为所述第一组件以减少或停止数据流到 发射机模块。

公开(公告)号：US20080082592A1

公开(公告)日：2008-04-03

申请号：US11536233

申请日：2006-09-28

申请人： Shlomo Ahal ,  Assaf Natanzon ,  Tzach Sechner ,  Oded Kedem ,  Evgeny Drukh

发明人： Shlomo Ahal ,  Assaf Natanzon ,  Tzach Sechner ,  Oded Kedem ,  Evgeny Drukh

IPC分类号： G06F17/30

CPC分类号： G06F17/30575 ,  G06F11/2066 ,  G06F11/2069 ,  G06F11/2074 ,  G06F2201/855 ,  Y10S707/99953

摘要： Methods and systems for continuous data replication, including receiving a write transaction from a production site, the write transaction including raw data (RWNEW), a size indicator (SZ1) for the size of the raw data, and a start address (ADD1) for writing the raw data, copying the raw data (RWNEW) into a first journal data stream at a current journal address (JADD1), and copying the size indicator (SZ1), the start address (ADD1) and the journal address (JADD1) into a first journal meta-data stream.

摘要翻译： 用于连续数据复制的方法和系统，包括从生产站点接收写入事务，所述写入事务包括原始数据（RWNEW），用于原始数据的大小的大小指示符（SZ 1）和起始地址（ADD 1 ），用于写入原始数据，将原始数据（RWNEW）复制到当前日志地址（JADD 1）的第一日志数据流中，并复制大小指示符（SZ 1），起始地址（ADD 1）和日志 地址（JADD 1）转换成第一个日志元数据流。

公开(公告)号：US20070220311A1

公开(公告)日：2007-09-20

申请号：US11356920

申请日：2006-02-17

申请人： Michael Lewin ,  Yair Heller ,  Ziv Kedem ,  Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh

发明人： Michael Lewin ,  Yair Heller ,  Ziv Kedem ,  Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1471 ,  G06F11/1474 ,  G06F11/2064 ,  G06F11/2082 ,  G06F2201/82 ,  G06F2201/84

摘要： A system for consistent data recovery, including a storage area network (SAN) of initiator nodes and target nodes, wherein initiator nodes issue I/O requests and target nodes respond to I/O requests, the SAN being represented logically as a plurality of consistency groups of nodes, G1, . . . , Gn, each consistency group representing at least one logical storage unit (LU), each LU acting as a target node within the SAN, at least one host device, each host device acting as an initiator within the SAN, each host device including a transmitter for issuing I/O requests to at least one LU, and each host device being associated with a host device agent, the host device agent including an interceptor for intercepting I/O requests issued by the host device, and a router for forwarding the intercepted I/O requests to a data protection appliance, a data protection appliance (DPA) acting as both an initiator node and a target node within the SAN.

摘要翻译： 一种用于一致的数据恢复的系统，包括发起者节点和目标节点的存储区域网络（SAN），其中发起者节点发出I / O请求和目标节点响应I / O请求，SAN被逻辑地表示为多个一致性 节点组，G 1，。 。 。 ，Gn，每个一致性组表示至少一个逻辑存储单元（LU），每个LU用作SAN内的目标节点，至少一个主机设备，每个主机设备充当SAN内的发起者，每个主机设备包括 发送器，用于向至少一个LU发出I / O请求，并且每个主机设备与主机设备代理相关联，所述主机设备代理包括用于拦截主机设备发出的I / O请求的拦截器，以及用于转发 截取到数据保护设备的I / O请求，作为SAN内的启动器节点和目标节点的数据保护设备（DPA）。

公开(公告)号：US07860836B1

公开(公告)日：2010-12-28

申请号：US11964216

申请日：2007-12-26

申请人： Assaf Natanzon ,  Evgeny Drukh ,  Shlomo Ahal

发明人： Assaf Natanzon ,  Evgeny Drukh ,  Shlomo Ahal

IPC分类号： G06F9/50 ,  G06F3/06

CPC分类号： G06F11/1469 ,  G06F11/1471 ,  G06F11/1474 ,  G06F11/2094 ,  G06F11/2097

摘要： In one aspect, a method to recover data includes annotating metadata entries in a journal to indicate changes by an application to an object stored in a continuous data protection environment. Each entry of the metadata corresponds to one of a unique group of DO stream data blocks or a unique group of UNDO stream data blocks. The method also includes determining a version of the object that meets criteria by searching the annotated entries and obtaining the version of the object that meets the criteria.In another aspect, a method to recover data includes receiving criteria to recover an object, determining a version of the object that meets the criteria by searching point-in-time images using a DO stream and an UNDO stream and obtaining the version of the object that meets the criteria.

摘要翻译： 在一个方面，恢复数据的方法包括在日志中注释元数据条目以指示应用程序对存储在连续数据保护环境中的对象的改变。 元数据的每个条目对应于DO流数据块的唯一组之一或UNDO流数据块的唯一组。 该方法还包括通过搜索注释的条目并获得满足条件的对象的版本来确定满足条件的对象的版本。 在另一方面，恢复数据的方法包括接收标准以恢复对象，通过使用DO流和UNDO流搜索时间点图像来确定满足标准的对象的版本并获得对象的版本 符合标准。

公开(公告)号：US20070266053A1

公开(公告)日：2007-11-15

申请号：US11609561

申请日：2006-12-12

申请人： Shlomo Ahal ,  Oded Kedem ,  Assaf Natanzon

发明人： Shlomo Ahal ,  Oded Kedem ,  Assaf Natanzon

IPC分类号： G06F17/30

CPC分类号： H04L67/1097 ,  G06F11/1471 ,  G06F11/2071 ,  G06F2201/855

摘要： Method and apparatus for data access, including for a host device designated as Device A within a host computer, the host device corresponding to a first logical storage unit designated as LUN A, where LUN A is configured to access data directly from a physical storage system, assigning a second logical storage unit, designated as LUN X, wherein LUN X is configured to access the storage system indirectly via a data protection computer, providing the data protection computer access to a data structure that is able to recover data that was stored in the storage system at an earlier point in time, TI, and in response to a request from the host computer for data that was stored in the storage system at time TI, switching Device A to get its data from LUN X instead of from LUN A. A data access system and a computer-readable storage medium are also described and claimed.

摘要翻译： 用于数据访问的方法和装置，包括对于在主计算机内被指定为设备A的主机设备，主机设备对应于指定为LUN A的第一逻辑存储单元，其中，LUN A被配置为直接从物理存储系统 ，分配指定为LUN X的第二逻辑存储单元，其中LUN X被配置为经由数据保护计算机间接地访问存储系统，提供数据保护计算机对能够恢复存储的数据的数据结构的访问 存储系统在较早的时间点，TI，并且响应于来自主机的对TI存储在存储系统中的数据的请求，切换设备A以从LUN X而不是从LUN A获取其数据 还描述和要求保护数据访问系统和计算机可读存储介质。

公开(公告)号：US08041940B1

公开(公告)日：2011-10-18

申请号：US11964228

申请日：2007-12-26

申请人： Assaf Natanzon ,  Shlomo Ahal

发明人： Assaf Natanzon ,  Shlomo Ahal

IPC分类号： H04L29/06

CPC分类号： H04L63/0485

摘要： In one aspect, a method to offload encryption processing in a storage area network (SAN) system includes determining whether a host is performing at a first performance level, offloading encryption processing at a processor if the host is not performing at a first performance level and performing encryption processing at the host if the host is performing at a first performance level.

摘要翻译： 一方面，一种在存储区域网络（SAN）系统中卸载加密处理的方法包括：如果主机在第一性能级别不执行，则确定主机是否以第一性能级别执行，在处理器中卸载加密处理;以及 如果主机在第一性能级别执行，则在主机执行加密处理。

公开(公告)号：US07844856B1

公开(公告)日：2010-11-30

申请号：US11964193

申请日：2007-12-26

申请人： Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh ,  Ido Singer

发明人： Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh ,  Ido Singer

IPC分类号： G06F11/00 ,  G06F11/34

CPC分类号： G06F11/3419 ,  G06F11/1471 ,  G06F11/1474 ,  G06F11/2023 ,  G06F11/2066 ,  G06F11/2074 ,  G06F11/2079 ,  G06F11/3452 ,  G06F11/348 ,  G06F11/3485 ,  G06F2201/81 ,  G06F2201/87

摘要： Method and apparatus to provide bottleneck processing in a continuous data protection system having journaling. In an exemplary embodiment, system parameter information is collected and analyzed to output bottleneck information.

摘要翻译： 在具有日志记录的连续数据保护系统中提供瓶颈处理的方法和装置。 在示例性实施例中，收集和分析系统参数信息以输出瓶颈信息。

公开(公告)号：US20130014104A1

公开(公告)日：2013-01-10

申请号：US13404129

申请日：2012-02-24

申请人： Assaf Natanzon ,  Tzach Schechner ,  Oded Kedem ,  Ziv Kedem ,  Shlomo Ahal ,  Christos Karamanolis

发明人： Assaf Natanzon ,  Tzach Schechner ,  Oded Kedem ,  Ziv Kedem ,  Shlomo Ahal ,  Christos Karamanolis

IPC分类号： G06F9/455

CPC分类号： G06F9/45558 ,  G06F3/0619 ,  G06F3/0653 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F9/45533 ,  G06F9/545 ,  G06F11/1471 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45595 ,  G06F2209/542

摘要： A hypervisor virtual server system, including a plurality of virtual servers, a plurality of virtual disks that are read from and written to by the plurality of virtual servers, a physical disk, an I/O backend coupled with the physical disk and in communication with the plurality of virtual disks, which reads from and writes to the physical disk, a tapping driver in communication with the plurality of virtual servers, which intercepts I/O requests made by any one of said plurality of virtual servers to any one of said plurality of virtual disks, and a virtual data services appliance, in communication with the tapping driver, which receives the intercepted I/O write requests from the tapping driver, and that provides data services based thereon.

公开(公告)号：US07577867B2

公开(公告)日：2009-08-18

申请号：US11356920

申请日：2006-02-17

申请人： Michael Lewin ,  Yair Heller ,  Ziv Kedem ,  Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh

发明人： Michael Lewin ,  Yair Heller ,  Ziv Kedem ,  Shlomo Ahal ,  Assaf Natanzon ,  Evgeny Drukh

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1471 ,  G06F11/1474 ,  G06F11/2064 ,  G06F11/2082 ,  G06F2201/82 ,  G06F2201/84

摘要： A system for consistent data recovery, including a storage area network (SAN) of initiator nodes and target nodes, wherein initiator nodes issue I/O requests and target nodes respond to I/O requests, the SAN being represented logically as a plurality of consistency groups of nodes, G1, . . . , Gn, each consistency group representing at least one logical storage unit (LU), each LU acting as a target node within the SAN, at least one host device, each host device acting as an initiator within the SAN, each host device including a transmitter for issuing I/O requests to at least one LU, and each host device being associated with a host device agent, the host device agent including an interceptor for intercepting I/O requests issued by the host device, and a router for forwarding the intercepted I/O requests to a data protection appliance, a data protection appliance (DPA) acting as both an initiator node and a target node within the SAN.

摘要翻译： 一种用于一致的数据恢复的系统，包括发起者节点和目标节点的存储区域网络（SAN），其中发起者节点发出I / O请求和目标节点响应I / O请求，SAN被逻辑地表示为多个一致性 节点组，G1。 。 。 ，Gn，每个一致性组表示至少一个逻辑存储单元（LU），每个LU用作SAN内的目标节点，至少一个主机设备，每个主机设备充当SAN内的发起者，每个主机设备包括 发送器，用于向至少一个LU发出I / O请求，并且每个主机设备与主机设备代理相关联，所述主机设备代理包括用于拦截主机设备发出的I / O请求的拦截器，以及用于转发 截取到数据保护设备的I / O请求，作为SAN内的启动器节点和目标节点的数据保护设备（DPA）。