公开(公告)号：US20070011276A1

公开(公告)日：2007-01-11

申请号：US11177880

申请日：2005-07-08

申请人： Samar Sharma ,  Roy D'Cruz ,  Sanjaya Kumar ,  Prashant Billore ,  Dinesh Dutt ,  Thomas Edsall

发明人： Samar Sharma ,  Roy D'Cruz ,  Sanjaya Kumar ,  Prashant Billore ,  Dinesh Dutt ,  Thomas Edsall

IPC分类号： G06F15/16

CPC分类号： H04L67/1097 ,  H04L63/00 ,  H04L63/30

摘要： Disclosed are methods and apparatus for data tapping within a storage area network (SAN) and providing tapped data to a third party device, such as an appliance. In general, mechanisms are provided in a SAN to allow a data tap of data flowing between an initiator and a target. In one implementation, a data virtual target (DVT) in created in a network device to intercept data sent by a specific initiator to a specific logical unit of a specific target. The data or a copy of the data is sent to both the specific logical unit of the specific target and to an appliance. The data routing may be accomplished by use of a virtual initiator (VI), which is configured to send the data (or a copy of the data) to the specific target and the appliance. In a transparent mode of operations, the DVT has a same PWWN (port world wide name) and FCID (fibre channel identifier) as the specific target. In a first proxy mode of operation, the DVT has a different PWWN and FCID than the specific target. In a second proxy mode of operation, the DVT has a same PWWN and different FCID than the specific target.

摘要翻译： 公开了用于在存储区域网络（SAN）内进行数据窃取的方法和装置，并且向第三方设备（例如设备）提供分接数据。 通常，在SAN中提供机制以允许在启动器和目标之间流动的数据的数据抽头。 在一个实现中，在网络设备中创建的数据虚拟目标（DVT），以将由特定发起者发送的数据截取到特定目标的特定逻辑单元。 将数据或数据副本发送到特定目标的特定逻辑单元和设备。 可以通过使用虚拟启动器（VI）来实现数据路由，其被配置为将数据（或数据的副本）发送到特定目标和设备。 在透明的操作模式下，DVT具有与特定目标相同的PWWN（端口世界名称）和FCID（光纤通道标识符）。 在第一代理操作模式下，DVT具有与特定目标不同的PWWN和FCID。 在第二代理操作模式下，DVT具有与特定目标相同的PWWN和不同的FCID。

公开(公告)号：US20050223014A1

公开(公告)日：2005-10-06

申请号：US11129100

申请日：2005-05-13

申请人： Samar Sharma ,  Dinesh Dutt ,  Sanjaya Kumar ,  Umesh Mahajan ,  Thomas Edsall

发明人： Samar Sharma ,  Dinesh Dutt ,  Sanjaya Kumar ,  Umesh Mahajan ,  Thomas Edsall

IPC分类号： G06F3/06 ,  G06F15/167 ,  G06F17/30 ,  H04L29/08 ,  H04L29/14

CPC分类号： H04L63/08 ,  G06F17/30197 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/1097 ,  H04L69/40

摘要： A scalable NAS file system and protocols for implementing CIFS thereon are disclosed. In certain embodiments, the protocols implement the CIFS protocol on a scalable file server architecture having one or more protocol termination nodes, one or more file server nodes, and one or more disk controller nodes. Among the features that may be specifically implemented are tree access, file access, user authentication, locking, state maintenance, and failover of protocol termination nodes and file server nodes.

摘要翻译： 公开了一种可扩展的NAS文件系统和用于在其上实现CIFS的协议。 在某些实施例中，协议在具有一个或多个协议终止节点，一个或多个文件服务器节点和一个或多个磁盘控制器节点的可伸缩文件服务器架构上实现CIFS协议。 可以具体实现的功能包括协议终止节点和文件服务器节点的树访问，文件访问，用户认证，锁定，状态维护和故障转移。

公开(公告)号：US20060277361A1

公开(公告)日：2006-12-07

申请号：US11146457

申请日：2005-06-06

申请人： Samar Sharma ,  Dinesh Dutt ,  Sanjaya Kumar ,  Umesh Mahajan ,  Thomas Edsall

发明人： Samar Sharma ,  Dinesh Dutt ,  Sanjaya Kumar ,  Umesh Mahajan ,  Thomas Edsall

IPC分类号： G06F12/16

CPC分类号： G06F3/0632 ,  G06F3/0617 ,  G06F3/067

摘要： A technique is provided for implementing online restriping of a volume in a storage area network. A first instance of the volume is instantiated at a first port of the fibre channel fabric for enabling I/O operations to be performed at the volume. While restriping operations are being performed at the volume, the first port is able to concurrently perform I/O operations at the volume.

摘要翻译： 提供了一种用于实现存储区域网络中的卷的在线重新排列的技术。 卷的第一个实例在光纤通道结构的第一个端口实例化，以便在卷上执行I / O操作。 当卷上执行重新启动操作时，第一个端口能够同时在卷上执行I / O操作。

公开(公告)号：US20110222402A1

公开(公告)日：2011-09-15

申请号：US13112824

申请日：2011-05-20

申请人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

发明人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

IPC分类号： H04L12/28 ,  H04L12/24

CPC分类号： H04L12/4633 ,  H04L12/4641 ,  H04L47/10 ,  H04L47/13 ,  H04L47/24 ,  H04L47/266 ,  H04L47/32 ,  H04L47/39 ,  H04L69/22

摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (“VLs”) in a single physical connection of a data center or similar network. Some VLs are “drop” VLs, with Ethernet-like behavior, and others are “no-drop” lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

摘要翻译： 本发明提供了用于实现低延迟以太网（“LLE”）解决方案的方法和设备，这也被称为数据中心以太网（“DCE”）解决方案，其简化了数据中心的连接性并提供了高带宽，低 用于承载以太网和存储流量的延迟网络。 本发明的一些方面涉及将FC帧变换成适于在以太网上传输的格式。 本发明的一些优选实现在数据中心或类似网络的单个物理连接中实现多个虚拟通道（“VL”）。 一些VL是“下降”VL，具有类似以太网的行为，而其他VL是类似FC的行为的“不丢弃”通道。 本发明的一些优选实施方案提供了基于信用和VL的保证带宽。 使用小帧缓冲区时，主动缓冲区管理可实现高可靠性和低延迟。 优选地，用于主动缓冲器管理的规则对于丢弃和不丢弃VL是不同的。

公开(公告)号：US20060087989A1

公开(公告)日：2006-04-27

申请号：US11094877

申请日：2005-03-30

申请人： Silvano Gai ,  Thomas Edsall ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

发明人： Silvano Gai ,  Thomas Edsall ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

IPC分类号： H04L5/22

CPC分类号： H04L47/10 ,  H04L12/413 ,  H04L47/32 ,  H04L47/33 ,  H04L47/39 ,  H04L49/90

摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (“VLs”) in a single physical connection of a data center or similar network. Some VLs are “drop” VLs, with Ethernet-like behavior, and others are “no-drop” lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

摘要翻译： 本发明提供了用于实现低延迟以太网（“LLE”）解决方案的方法和设备，这也被称为数据中心以太网（“DCE”）解决方案，其简化了数据中心的连接性并提供了高带宽，低 用于承载以太网和存储流量的延迟网络。 本发明的一些方面涉及将FC帧变换成适于在以太网上传输的格式。 本发明的一些优选实现在数据中心或类似网络的单个物理连接中实现多个虚拟通道（“VL”）。 一些VL是“下降”VL，具有类似以太网的行为，而其他VL是类似FC的行为的“不丢弃”通道。 本发明的一些优选实施方案提供了基于信用和VL的保证带宽。 使用小帧缓冲区时，主动缓冲区管理可实现高可靠性和低延迟。 优选地，用于主动缓冲器管理的规则对于丢弃和不丢弃VL是不同的。

公开(公告)号：US20050117522A1

公开(公告)日：2005-06-02

申请号：US10726269

申请日：2003-12-01

申请人： Murali Basavaiah ,  Satish Ambati ,  Magesh Iyengar ,  Thomas Edsall ,  Dinesh Dutt ,  Silvano Gai ,  Varagur Chandrasekaran

发明人： Murali Basavaiah ,  Satish Ambati ,  Magesh Iyengar ,  Thomas Edsall ,  Dinesh Dutt ,  Silvano Gai ,  Varagur Chandrasekaran

IPC分类号： G06F3/06 ,  H04L20060101 ,  H04L12/26 ,  H04L29/08

CPC分类号： G06F3/0659 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/067 ,  H04L67/1097

摘要： A method and apparatus to improve the performance of a SCSI write over a high latency network. The apparatus includes a first Switch close to the initiator in a first SAN and a second Switch close to the target in a second SAN. In various embodiments, the two Switches are border switches connecting their respective SANs to a relatively high latency network between the two SANs. In addition, the initiator can be either directly connected or indirectly connected to the first Switch in the first SAN. The target can also be either directly or indirectly connected to the second Switch in the second SAN. During operation, the method includes the first Switch sending Transfer Ready (Xfr_rdy) frame(s) based on buffer availability to the initiating Host in response to a SCSI Write command from the Host directed to the target. The first and second Switches then coordinate with one another by sending Transfer Ready commands to each other independent of the target's knowledge. The second switch buffers the data received from the Host until the target indicates it is ready to receive the data. Since the Switches send frames to the initiating Host independent of the target, the Switches manipulate the OX_ID and RX_ID fields in the Fibre Channel header of the various commands associated with the SCSI Write. The OX_ID and RX_ID fields are manipulated so as to trap the commands and so that the Switches can keep track of the various commands associated with the SCSI write.

摘要翻译： 一种通过高延迟网络提高SCSI写入性能的方法和装置。 该设备包括靠近第一SAN中的发起者的第一交换机和在第二SAN中靠近目标的第二交换机。 在各种实施例中，两个交换机是将它们各自的SAN连接到两个SAN之间相对较高延迟的网络的边界交换机。 此外，启动器可以直接连接或间接连接到第一个SAN中的第一个交换机。 目标也可以直接或间接地连接到第二个SAN中的第二个交换机。 在操作期间，该方法包括响应于从指向目标的主机的SCSI写入命令，基于发起主机的缓冲区可用性的第一个交换机发送传输就绪（Xfr_rdy）帧。 第一个和第二个交换机然后通过发送传输就绪命令相互协调，独立于目标的知识。 第二个交换机缓存从主机接收的数据，直到目标指示它准备好接收数据。 由于交换机将发送帧发送到独立于目标的发起主机，交换机将处理与SCSI写入相关联的各种命令的光纤通道报头中的OX_ID和RX_ID字段。 操作OX_ID和RX_ID字段以捕获命令，以便交换机可以跟踪与SCSI写入相关联的各种命令。

公开(公告)号：US20050053073A1

公开(公告)日：2005-03-10

申请号：US10655452

申请日：2003-09-03

申请人： Raymond Kloth ,  Thomas Edsall ,  Kalyan Ghosh ,  Gaurav Rastogi ,  Dinesh Dutt ,  Matthew Cressa

发明人： Raymond Kloth ,  Thomas Edsall ,  Kalyan Ghosh ,  Gaurav Rastogi ,  Dinesh Dutt ,  Matthew Cressa

IPC分类号： H04L12/26 ,  H04L12/56 ,  H04L12/28

CPC分类号： H04L43/00 ,  H04L43/18 ,  H04L49/357 ,  H04L49/555 ,  H04L2212/00

摘要： Methods and devices are provided for non-disruptive monitoring of network traffic through one or more ports of a Fibre Channel network device. Preferred embodiments of the invention are used in conjunction with the switched port analyzer (“SPAN”) and/or remote SPAN (“RSPAN”) features. SPAN mode operation allows traffic through any Fibre Channel interface of a network device to be replicated and delivered to a single port on the same network device. Ingress SPAN allows the monitoring of some or all packets that ingress a specified port or ports. Egress SPAN allows the monitoring of some or all packets that egress a specified port or ports. RSPAN allows the delivery of the replicated traffic to a port on a remote network device. Filtering may be applied, for example, to SPAN packets having selected virtual storage area network numbers.

摘要翻译： 提供了方法和设备，用于通过光纤通道网络设备的一个或多个端口对网络流量进行非中断监控。 本发明的优选实施例与交换端口分析器（“SPAN”）和/或远程SPAN（“RSPAN”）特征结合使用。 SPAN模式操作允许通过网络设备的任何光纤通道接口的流量被复制并传送到同一网络设备上的单个端口。 Ingress SPAN允许监视进入指定端口的某些或所有数据包。 出口SPAN允许监视某些或所有出口指定端口或端口的数据包。 RSPAN允许将复制的流量传送到远程网络设备上的端口。 例如，可以将过滤应用于具有选择的虚拟存储区域网络号的SPAN分组。

公开(公告)号：US08565231B2

公开(公告)日：2013-10-22

申请号：US13112824

申请日：2011-05-20

申请人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

发明人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

IPC分类号： H04L12/28

CPC分类号： H04L12/4633 ,  H04L12/4641 ,  H04L47/10 ,  H04L47/13 ,  H04L47/24 ,  H04L47/266 ,  H04L47/32 ,  H04L47/39 ,  H04L69/22

摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (“VLs”) in a single physical connection of a data center or similar network. Some VLs are “drop” VLs, with Ethernet-like behavior, and others are “no-drop” lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

摘要翻译： 本发明提供了用于实现低延迟以太网（“LLE”）解决方案的方法和设备，这也被称为数据中心以太网（“DCE”）解决方案，其简化了数据中心的连接性并提供了高带宽，低 用于承载以太网和存储流量的延迟网络。 本发明的一些方面涉及将FC帧变换成适于在以太网上传输的格式。 本发明的一些优选实现在数据中心或类似网络的单个物理连接中实现多个虚拟通道（“VL”）。 一些VL是“下降”VL，具有类似以太网的行为，而其他VL是类似FC的行为的“不丢弃”通道。 本发明的一些优选实施方案提供了基于信用和VL的保证带宽。 使用小帧缓冲区时，主动缓冲区管理可实现高可靠性和低延迟。 优选地，用于主动缓冲器管理的规则对于丢弃和不丢弃VL是不同的。

公开(公告)号：US20060101140A1

公开(公告)日：2006-05-11

申请号：US11084587

申请日：2005-03-18

申请人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

发明人： Silvano Gai ,  Thomas Edsall ,  Luca Cafiero ,  Davide Bergamasco ,  Dinesh Dutt ,  Flavio Bonomi

IPC分类号： G06F15/173

CPC分类号： H04L12/4633 ,  H04L12/4641 ,  H04L47/10 ,  H04L47/13 ,  H04L47/24 ,  H04L47/266 ,  H04L47/32 ,  H04L47/39 ,  H04L69/22

摘要： The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of the invention involve transforming FC frames into a format suitable for transport on an Ethernet. Some preferred implementations of the invention implement multiple virtual lanes (“VLs”) in a single physical connection of a data center or similar network. Some VLs are “drop” VLs, with Ethernet-like behavior, and others are “no-drop” lanes with FC-like behavior. Some preferred implementations of the invention provide guaranteed bandwidth based on credits and VL. Active buffer management allows for both high reliability and low latency while using small frame buffers. Preferably, the rules for active buffer management are different for drop and no drop VLs.

公开(公告)号：US20050192967A1

公开(公告)日：2005-09-01

申请号：US10791660

申请日：2004-03-01

申请人： Murali Basavaiah ,  Satish Ambati ,  Magesh Iyengar ,  Thomas Edsall ,  Dinesh Dutt ,  Silvano Gai ,  Varagur Chandrasekaran

发明人： Murali Basavaiah ,  Satish Ambati ,  Magesh Iyengar ,  Thomas Edsall ,  Dinesh Dutt ,  Silvano Gai ,  Varagur Chandrasekaran

IPC分类号： G06F3/06 ,  G06F13/00 ,  G06F13/38 ,  H04L29/08

CPC分类号： G06F13/385 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/067 ,  H04L67/1097

摘要： A method and apparatus to improve the performance of a SCSI write over a high latency network. The apparatus includes a first Switch close to the initiator in a first SAN and a second Switch close to the target in a second SAN. In various embodiments, the two Switches are border switches connecting their respective SANs to a relatively high latency network between the two SANs. In addition, the initiator can be either directly connected or indirectly connected to the first Switch in the first SAN. The target can also be either directly or indirectly connected to the second Switch in the second SAN. During operation, the method includes the first Switch sending Transfer Ready (Xfr_rdy) frame(s) based on buffer availability to the initiating Host in response to a SCSI Write command from the Host directed to the target. The first and second Switches then coordinate with one another by sending Transfer Ready commands to each other independent of the target's knowledge. The second switch buffers the data received from the Host until the target indicates it is ready to receive the data. Since the Switches send frames to the initiating Host independent of the target, the Switches manipulate the OX_ID and RX_ID fields in the Fibre Channel header of the various commands associated with the SCSI Write. The OX_ID and RX_ID fields are manipulated so as to trap the commands and so that the Switches can keep track of the various commands associated with the SCSI write.