公开(公告)号：US07363532B2

公开(公告)日：2008-04-22

申请号：US10923119

申请日：2004-08-20

申请人： Ahmad A. J. Ali ,  Rohit Chawla ,  Gary B. Kotzur ,  Kevin T. Marks ,  Howard A. Shoobe

发明人： Ahmad A. J. Ali ,  Rohit Chawla ,  Gary B. Kotzur ,  Kevin T. Marks ,  Howard A. Shoobe

IPC分类号： G06F11/00

CPC分类号： G06F11/1092 ,  G06F11/1662 ,  G06F11/2094

摘要： A system and method for recovering from a drive failure in a storage array is disclosed in which a spare drive array is provided in the event of a failure in one of the active drives of the storage array. The spare drive array is comprised of multiple drives that are comprised in a RAID 0 configuration to reduce the time required to rebuild the content of the failed drive on the spare drive.

摘要翻译： 公开了一种用于从存储阵列中的驱动器故障中恢复的系统和方法，其中在存储阵列的一个有效驱动器中的一个故障的情况下提供备用驱动器阵列。 备用驱动器阵列由包含在RAID 0配置中的多个驱动器组成，以减少重新构建备用驱动器上的故障驱动器内容所需的时间。

公开(公告)号：US20070266110A1

公开(公告)日：2007-11-15

申请号：US11392360

申请日：2006-03-29

申请人： Rohit Chawla ,  Gaurav Chawla ,  Farzad Khosrowpour

发明人： Rohit Chawla ,  Gaurav Chawla ,  Farzad Khosrowpour

IPC分类号： G06F15/16

CPC分类号： H04L67/1097 ,  Y10T307/414

摘要： An SAS domain map is automatically generated at an SAS concentrator switch by a virtual mapping device that presents itself as a target for discovery by SAS devices interfaced with the concentrator, such as information handling systems and storage devices. During the SAS protocol discovery process, the virtual mapping device generates the SAS domain map by acquiring the device name and the device port for each concentrator port that interfaces with a device. A management application running on the concentrator applies the SAS domain map to provide network functions, such as zoning or diagnostics.

摘要翻译： 通过虚拟映射设备在SAS集中器交换机上自动生成SAS域映射，该虚拟映射设备将自身呈现为与集中器（例如信息处理系统和存储设备）接口的SAS设备进行发现的目标。 在SAS协议发现过程中，虚拟映射设备通过获取与设备接口的每个集中器端口的设备名称和设备端口生成SAS域映射。 集中器上运行的管理应用程序应用SAS域映射，以提供网络功能，如分区或诊断。

公开(公告)号：US08751862B2

公开(公告)日：2014-06-10

申请号：US11837096

申请日：2007-08-10

申请人： Jacob Cherian ,  Rohit Chawla

发明人： Jacob Cherian ,  Rohit Chawla

IPC分类号： G06F11/00

CPC分类号： G06F11/1092 ,  G06F2211/104

摘要： A fast rebuild mechanism that includes a background initialization mechanism. The fast rebuild mechanism allows a RAID controller to be made aware of what blocks are actually in use so that only those blocks are rebuilt after a disk drive failure. The fast rebuild mechanism also includes functionality for an IO controller (such as storage controller) to detect whether a block has stored data to indicate that the block has valid data when the block is accessed.

摘要翻译： 一种包含后台初始化机制的快速重建机制。 快速重建机制允许RAID控制器知道实际使用的块，以便在磁盘驱动器发生故障后只重建这些块。 快速重建机制还包括用于IO控制器（例如存储控制器）的功能，用于检测块是否已存储数据，以指示块访问块时具有有效数据。

公开(公告)号：US20110173310A1

公开(公告)日：2011-07-14

申请号：US13052330

申请日：2011-03-21

申请人： Rohit Chawla ,  Gaurav Chawla ,  Farzad Khosrowpour

发明人： Rohit Chawla ,  Gaurav Chawla ,  Farzad Khosrowpour

IPC分类号： G06F15/173

CPC分类号： H04L67/1097 ,  Y10T307/414

摘要： An SAS domain map is automatically generated at an SAS concentrator switch by a virtual mapping device that presents itself as a target for discovery by SAS devices interfaced with the concentrator, such as information handling systems and storage devices. During the SAS protocol discovery process, the virtual mapping device generates the SAS domain map by acquiring the device name and the device port for each concentrator port that interfaces with a device. A management application running on the concentrator applies the SAS domain map to provide network functions, such as zoning or diagnostics.

摘要翻译： 通过虚拟映射设备在SAS集中器交换机上自动生成SAS域映射，该虚拟映射设备将自身呈现为与集中器（例如信息处理系统和存储设备）接口的SAS设备进行发现的目标。 在SAS协议发现过程中，虚拟映射设备通过获取与设备接口的每个集中器端口的设备名称和设备端口生成SAS域映射。 集中器上运行的管理应用程序应用SAS域映射，以提供网络功能，如分区或诊断。

公开(公告)号：US20090037655A1

公开(公告)日：2009-02-05

申请号：US11830272

申请日：2007-07-30

申请人： Jacob Cherian ,  Sanjeet Singh ,  Rohit Chawla ,  Eric Endebrock ,  Brett Roscoe ,  Matthew Smith

发明人： Jacob Cherian ,  Sanjeet Singh ,  Rohit Chawla ,  Eric Endebrock ,  Brett Roscoe ,  Matthew Smith

IPC分类号： G06F12/00

CPC分类号： G06F3/0665 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/067 ,  G06F11/1458

摘要： Systems and methods for data storage and backup are disclosed. A system for data storage and backup may include a storage array comprising one or more storage resources and an agent running on a host device, the agent communicatively coupled to the storage array. The agent may be operable to automatically allocate one or more storage resources for the storage of data associated with a backup job of the hose device and communicate the data associated with the backup job to the allocated storage resources.

摘要翻译： 公开了用于数据存储和备份的系统和方法。 用于数据存储和备份的系统可以包括包括一个或多个存储资源的存储阵列和在主机设备上运行的代理，所述代理通信地耦合到所述存储阵列。 代理可以可操作以自动分配用于存储与软管设备的备份作业相关联的数据的一个或多个存储资源，并将与备份作业相关联的数据传送到所分配的存储资源。

公开(公告)号：US07653782B2

公开(公告)日：2010-01-26

申请号：US11439049

申请日：2006-05-23

申请人： Stephen G. Luning ,  Rohit Chawla ,  Gary Kotzur ,  Ahmad H. Tawil

发明人： Stephen G. Luning ,  Rohit Chawla ,  Gary Kotzur ,  Ahmad H. Tawil

IPC分类号： G06F12/00

CPC分类号： G06F11/201 ,  G06F11/2087

摘要： A system for a host-based RAID solution in a shared storage environment is provided in which the compute blades of a system are coupled to one or multiple concentrators. The concentrators serve as a switch or expander to couple each of the compute blades to a shared storage resource. Within the shared storage resource, a set of drives is configured in a RAID array. The shared disk drives are partitioned so that each partition is dedicated to one of the compute blades of the system. Multiple sets of drives may be used so that the collective set of drives can be configured as part of a RAID volume that includes mirroring between at least two of the drives of the RAID volume, such as RAID 1 or RAID 0+1, in which each set of drives is a mirror of the other set of drives and the content associated with each of the compute blades is striped across multiple drives in each of the two sets of drives.

摘要翻译： 提供了一种用于共享存储环境中基于主机的RAID解决方案的系统，其中系统的计算刀片耦合​​到一个或多个集中器。 集线器用作交换机或扩展器，以将每个计算刀片耦合​​到共享存储资源。 在共享存储资源中，RAID阵列中配置了一组驱动器。 共享磁盘驱动器被分区，使得每个分区专用于系统的计算刀片之一。 可以使用多组驱动器，使得可以将集合的驱动器配置为包括在RAID卷的至少两个驱动器（例如RAID 1或RAID 0 + 1）之间的镜像的RAID卷的一部分，其中 每组驱动器是另一组驱动器的镜像，并且与每个计算刀片相关联的内容在两组驱动器的每一组中的多个驱动器上被条带化。

公开(公告)号：US20090044043A1

公开(公告)日：2009-02-12

申请号：US11837096

申请日：2007-08-10

申请人： Jacob Cherian ,  Rohit Chawla

发明人： Jacob Cherian ,  Rohit Chawla

IPC分类号： G06F11/20

CPC分类号： G06F11/1092 ,  G06F2211/104

摘要： A fast rebuild mechanism that includes a background initialization mechanism. The fast rebuild mechanism allows a RAID controller to be made aware of what blocks are actually in use so that only those blocks are rebuilt after a disk drive failure. The fast rebuild mechanism also includes functionality for an IO controller (such as storage controller) to detect whether a block has stored data to indicate that the block has valid data when the block is accessed.

摘要翻译： 一种包含后台初始化机制的快速重建机制。 快速重建机制允许RAID控制器知道实际使用的块，以便在磁盘驱动器发生故障后只重建这些块。 快速重建机制还包括用于IO控制器（例如存储控制器）的功能，用于检测块是否已存储数据，以指示块访问块时具有有效数据。

公开(公告)号：US20060218436A1

公开(公告)日：2006-09-28

申请号：US11090612

申请日：2005-03-25

申请人： Jacob Cherian ,  Rohit Chawla

发明人： Jacob Cherian ,  Rohit Chawla

IPC分类号： G06F11/00

CPC分类号： G06F11/2092 ,  G06F3/0617 ,  G06F3/0632 ,  G06F3/0689

摘要： If a hardware-based RAID (redundant array of independent disks) engine fails, the system can use a driver-based RAID engine in place of the hardware-based RAID engine. Using the driver-based RAID engine may reduce system downtime, and provide redundancy for the RAID system without requiring extra hardware.

摘要翻译： 如果基于硬件的RAID（独立磁盘的冗余阵列）引擎出现故障，则系统可以使用基于驱动程序的RAID引擎代替基于硬件的RAID引擎。 使用基于驱动程序的RAID引擎可能会降低系统停机时间，并为RAID系统提供冗余，而无需额外的硬件。

公开(公告)号：US20060143502A1

公开(公告)日：2006-06-29

申请号：US11009175

申请日：2004-12-10

申请人： Rohit Chawla ,  Farzad Khosrowpour

发明人： Rohit Chawla ,  Farzad Khosrowpour

IPC分类号： G06F11/00

CPC分类号： G06F11/2092 ,  G06F11/2033

摘要： A network and a method for network operation are disclosed that facilitates the identification of a failure in the storage subsystem of the network and the recovery from such a failure. The storage subsystem includes storage enclosures that are coupled to each of the server nodes of the network. When a server node determines that it can no longer access a drive of the storage enclosure, the server node notifies the alternate server node of the network, which attempts to access the drive. If the alternate server node of the network can access the drive, the ownership of the logical unit that includes the drive is transferred to the alternate server node.

摘要翻译： 公开了一种用于网络操作的网络和方法，其有助于识别网络的存储子系统中的故障以及从这种故障的恢复。 存储子系统包括耦合到网络的每个服务器节点的存储机箱。 当服务器节点确定它不能再访问存储机箱的驱动器时，服务器节点通知网络的备用服务器节点，该节点试图访问该驱动器。 如果网络的备用服务器节点可以访问驱动器，则将包含驱动器的逻辑单元的所有权传输到备用服务器节点。

公开(公告)号：US20060041793A1

公开(公告)日：2006-02-23

申请号：US10920000

申请日：2004-08-17

申请人： Jacob Cherian ,  Rohit Chawla

发明人： Jacob Cherian ,  Rohit Chawla

IPC分类号： G06F11/00

CPC分类号： G06F11/1088 ,  G06F11/1092

摘要： A system, method and software for enhancing a redundant array of independent disks (RAID) rebuild process are provided. In association with the RAID, one or more bit maps is maintained corresponding to one or more data blocks of the RAID. During input/output (I/O) operations directed to the RAID, the I/O operations are evaluated to determine whether an operation will modify a data block of the RAID. If a data block is to be modified by an I/O operation, the bit map is preferably marked to indicate which data blocks of the RAID are being modified. In the event of disk failure, the bit map may be referenced in association with a disk reconstruction process such that only those data block having been modified before disk failure are reconstructed and these data blocks having not been modified remain substantially free from reconstructive operations.

摘要翻译： 提供了一种用于增强独立磁盘冗余阵列（RAID）重建过程的系统，方法和软件。 与RAID相关联，与RAID的一个或多个数据块相对应地维护一个或多个位图。 在针对RAID的输入/输出（I / O）操作期间，评估I / O操作以确定操作是否将修改RAID的数据块。 如果要通过I / O操作修改数据块，则优选地将位图标记为指示正在修改RAID的哪些数据块。 在磁盘故障的情况下，可以与磁盘重建过程相关联地引用位图，使得仅重建在磁盘故障之前被修改的那些数据块，并且这些未被修改的数据块基本上没有重建操作。