公开(公告)号：US09088591B2

公开(公告)日：2015-07-21

申请号：US12110660

申请日：2008-04-28

申请人： Satyam B. Vaghani ,  Yuen-Lin Tan

发明人： Satyam B. Vaghani ,  Yuen-Lin Tan

IPC分类号： G06F17/30 ,  H04L29/08 ,  G06F11/14

CPC分类号： G06F17/30221 ,  G06F11/1435 ,  G06F17/30091 ,  G06F17/30117 ,  G06F17/30952 ,  H04L67/1097

摘要： A namespace is provided in a file system that employs logical volumes. With the namespace, the file system can withstand data storage units going offline without compromising accessibility of the files in the data storage units that remain online. The files in the online data storage units remain accessible through the use of path lookup tables that are stored in the online data storage units.

摘要翻译： 在使用逻辑卷的文件系统中提供命名空间。 使用命名空间，文件系统可以承受脱机的数据存储单元，而不会影响在线数据存储单元中的文件的可访问性。 在线数据存储单元中的文件可以通过使用存储在在线数据存储单元中的路径查找表来访问。

公开(公告)号：US08700585B2

公开(公告)日：2014-04-15

申请号：US12324665

申请日：2008-11-26

申请人： Satyam B. Vaghani ,  Yuen-Lin Tan

发明人： Satyam B. Vaghani ,  Yuen-Lin Tan

IPC分类号： G06F17/30

CPC分类号： G06F17/30168

摘要： In a file system shared by multiple servers, reservation of a data storage unit such as a LUN of a disk array to acquire locks in order to commit a transaction acting on data stored in the data storage unit is deferred until the transaction is completed in RAM and the locks can be acquired in parallel during a single instance of reserving the data storage unit.

摘要翻译： 在多个服务器共享的文件系统中，延迟数据存储单元（例如磁盘阵列的LUN）的预约以获取锁以便提交执行存储在数据存储单元中的数据的事务，直到事务在RAM中完成 并且可以在保留数据存储单元的单个实例期间并行获取锁。

公开(公告)号：US10776206B1

公开(公告)日：2020-09-15

申请号：US11707724

申请日：2007-02-16

申请人： Satyam B. Vaghani ,  Yuen-Lin Tan ,  Abhishek Rai

发明人： Satyam B. Vaghani ,  Yuen-Lin Tan ,  Abhishek Rai

IPC分类号： G06F16/176 ,  G06F11/14

摘要： Described herein is technology for, among things, a distributed transaction system. The distributed transaction system includes a number of computing entities and a data storage unit in communication with the computing entities. The data storage unit is operable to store a file system that is accessible by the computing entities. The data storage unit is also operable to store a number of transaction journals corresponding to respective computing entities. The transaction journals describe transactions of the computing entities on the file system. A particular computing entity is operable to maintain a respective transaction journal without communicating with the other computing entities.

公开(公告)号：US09146766B2

公开(公告)日：2015-09-29

申请号：US13166486

申请日：2011-06-22

申请人： Faraz Shaikh ,  Murali Vilayannur ,  Satyam B. Vaghani ,  Kiran Joshi

发明人： Faraz Shaikh ,  Murali Vilayannur ,  Satyam B. Vaghani ,  Kiran Joshi

IPC分类号： G06F9/455 ,  G06F12/02 ,  G06F3/06

CPC分类号： G06F3/0608 ,  G06F3/0631 ,  G06F3/0652 ,  G06F3/0665 ,  G06F3/067 ,  G06F9/45533 ,  G06F9/45558 ,  G06F12/0253 ,  G06F12/0261 ,  G06F12/0269 ,  G06F12/0276 ,  G06F17/30138 ,  G06F17/30194 ,  G06F17/30233 ,  G06F2009/45579 ,  G06F2212/1044 ,  G06F2212/154

摘要： Free storage blocks previously allocated to a logical block device are released back to an underlying storage system supporting the logical block device in a manner that does not conflict with write operations that may be issued to the free storage blocks at about the same time. According to a first technique, write operations on the same storage blocks to be released are paused until the underlying storage system has completed the releasing operation or, if the write operations are issued earlier than when the underlying storage system actually performs the releasing operation, such storage blocks are not released. According to a second technique, a special file is allocated the free storage blocks, which are then made available for safe releasing.

摘要翻译： 先前分配给逻辑块设备的空闲存储块以与同时发布到空闲存储块的写入操作不冲突的方式被释放回支持逻辑块设备的底层存储系统。 根据第一技术，暂停对要释放的相同存储块的写入操作，直到底层存储系统已经完成释放操作，或者如果写入操作早于底层存储系统实际执行释放操作时发出，则 存储块未被释放。 根据第二种技术，将特殊文件分配给空闲的存储块，然后使其可用于安全释放。

公开(公告)号：US08577853B2

公开(公告)日：2013-11-05

申请号：US13212002

申请日：2011-08-17

申请人： Jinyuan Li ,  Murali Vilayannur ,  Mayank Rawat ,  Satyam B. Vaghani

发明人： Jinyuan Li ,  Murali Vilayannur ,  Mayank Rawat ,  Satyam B. Vaghani

IPC分类号： G06F17/30

CPC分类号： G06F17/30165 ,  G06F17/30079

摘要： A shared file system for a group of host computer systems is upgraded in-place in a manner that the shared file system can remain online and accessible to the host computer systems. Each host computer system first loads a new file system driver that is backward compatible with a driver that is currently used by them to interact with the file system. Second, one of the host computer systems acquires locks to file system management data structures of the file system, upgrades the file system management data structures, and upon completion thereof, notifies the other host computer system that the upgrade to the file system management data structures is complete.

摘要翻译： 用于一组主机计算机系统的共享文件系统以就地方式升级，使得共享文件系统可以保持联机并且可以被主机计算机系统访问。 每个主机系统首先加载一个新的文件系统驱动程序，该文件系统驱动程序向后兼容当前由它们与文件系统交互的驱动程序。 其次，主机计算机系统中的一个获取文件系统的文件系统管理数据结构的锁，升级文件系统管理数据结构，并且在完成之后，通知另一个主机计算机系统升级到文件系统管理数据结构 做完了。

公开(公告)号：US09703482B2

公开(公告)日：2017-07-11

申请号：US13539139

申请日：2012-06-29

申请人： Derek Uluski ,  Nagendra Tomar ,  Gourav Sakargayan ,  Satyam B. Vaghani

发明人： Derek Uluski ,  Nagendra Tomar ,  Gourav Sakargayan ,  Satyam B. Vaghani

IPC分类号： G06F12/00 ,  G06F3/06 ,  G06F9/455

CPC分类号： G06F3/0604 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F9/45558 ,  G06F12/00 ,  G06F2009/45579

摘要： A framework for performing transformations of logical storage volumes in software is provided. This framework interposes on various operations that can be performed on a logical storage volume, such as input/output (IO) operations, via one or more filters, which may be implemented by an appliance that is inserted into the data path of the operations issued to the logical storage volume.

公开(公告)号：US09454368B2

公开(公告)日：2016-09-27

申请号：US12356694

申请日：2009-01-21

申请人： Satyam B. Vaghani ,  Mayank Rawat ,  Abhishek Rai

发明人： Satyam B. Vaghani ,  Mayank Rawat ,  Abhishek Rai

IPC分类号： G06F9/315 ,  G06F12/00 ,  G06F3/06 ,  G06F9/30 ,  G06F12/08

CPC分类号： G06F17/30174 ,  G06F3/06 ,  G06F3/0604 ,  G06F3/0613 ,  G06F3/064 ,  G06F3/0643 ,  G06F3/0647 ,  G06F3/065 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0683 ,  G06F3/0689 ,  G06F9/3004 ,  G06F12/00 ,  G06F12/0866 ,  G06F17/30079 ,  G06F2212/261

摘要： In a computer system with a disk array that has physical storage devices arranged as logical storage units and is capable of carrying out hardware storage operations on a per logical storage unit basis, data movement operations can be carried out on a per-file basis. A data mover software component for use in a computer or storage system enables cloning and initialization of data to provide high data throughput without moving the data between the kernel and application levels.

摘要翻译： 在具有布置为逻辑存储单元的物理存储设备的磁盘阵列的计算机系统中，并且能够在每个逻辑存储单元的基础上执行硬件存储操作，可以基于每个文件执行数据移动操作。 用于计算机或存储系统的数据移动器软件组件能够克隆和初始化数据以提供高数据吞吐量，而不会在内核和应用程序级之间移动数据。

公开(公告)号：US09411517B2

公开(公告)日：2016-08-09

申请号：US13181163

申请日：2011-07-12

申请人： Satyam B. Vaghani ,  Tejasvi Aswathanarayana

发明人： Satyam B. Vaghani ,  Tejasvi Aswathanarayana

IPC分类号： G06F9/455 ,  G06F3/06 ,  G06F9/50 ,  G06F9/48 ,  G06F12/02

CPC分类号： G06F3/0608 ,  G06F3/0644 ,  G06F3/0647 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F9/45558 ,  G06F9/4856 ,  G06F9/5022 ,  G06F12/0253 ,  G06F2009/4557

摘要： Interfaces to storage devices that employ storage space optimization technologies, such as thin provisioning, are configured to enable the benefits gained from such technologies to be sustained. Such an interface may be provided in a hypervisor of a virtualized computer system to enable the hypervisor to discover features of a logical unit number (LUN), such as whether or not the LUN is thinly provisioned, and also in a virtual machine (VM) of the virtualized computer system to enable the VM to discover features of a virtual disk, such as whether or not the virtual disk is thinly provisioned. The discovery of these features enables the hypervisor or the VM to instruct the underlying storage device to carry out certain operations such as an operation to deallocate blocks previously allocated to a logical block device, so that the storage device can continue to benefit from storage space optimization technologies implemented therein.

公开(公告)号：US09285993B2

公开(公告)日：2016-03-15

申请号：US13181182

申请日：2011-07-12

申请人： Satyam B. Vaghani ,  Tejasvi Aswathanarayana

发明人： Satyam B. Vaghani ,  Tejasvi Aswathanarayana

IPC分类号： G06F12/00 ,  G06F15/16 ,  G06F3/06 ,  G06F12/06 ,  G06F12/08 ,  G06F11/14

CPC分类号： G06F3/0608 ,  G06F3/0629 ,  G06F3/064 ,  G06F3/0644 ,  G06F3/0664 ,  G06F3/067 ,  G06F11/1484 ,  G06F12/06 ,  G06F12/08

摘要： Interfaces to storage devices that employ storage space optimization technologies, such as thin provisioning, are configured to enable the benefits gained from such technologies to be sustained. Such an interface may be provided in a hypervisor of a virtualized computer system to enable the hypervisor to discover features of a logical unit number (LUN), such as whether or not the LUN is thinly provisioned, and also in a virtual machine (VM) of the virtualized computer system to enable the VM to discover features of a virtual disk, such as whether or not the virtual disk is thinly provisioned. The discovery of these features enables better management of the LUN during near full and out-of-space conditions.

摘要翻译： 使用存储空间优化技术（如精简配置）的存储设备的接口被配置为使得能够持续从这些技术获得的益处。 这样的接口可以被提供在虚拟化计算机系统的管理程序中，以使虚拟机管理程序能够发现逻辑单元号（LUN）的特征，诸如LUN是否被薄配置，以及虚拟机（VM） 的虚拟化计算机系统以使VM能够发现虚拟磁盘的特征，诸如虚拟磁盘是否被薄配置。 发现这些功能可以在接近完全和空间不足的情况下更好地管理LUN。

公开(公告)号：US09239731B2

公开(公告)日：2016-01-19

申请号：US13290885

申请日：2011-11-07

申请人： Greg Hutchins ,  Christian Czezatke ,  Satyam B. Vaghani ,  Mallik Mahalingam ,  Shaw Chuang ,  Bich Le

发明人： Greg Hutchins ,  Christian Czezatke ,  Satyam B. Vaghani ,  Mallik Mahalingam ,  Shaw Chuang ,  Bich Le

IPC分类号： G06F9/455 ,  G06F13/00 ,  G06F9/46 ,  G06F9/50 ,  G06F11/14

CPC分类号： G06F9/461 ,  G06F9/45558 ,  G06F9/5077 ,  G06F11/1464 ,  G06F11/1466 ,  G06F2009/45562 ,  G06F2201/84

摘要： A method and system for acquiring a quiesceing set of information associated with a virtual machine. A virtual machine is cloned. The cloned virtual machine has an associated persistent storage device. The state of the persistent storage device is transformed into a quiesced state of the cloned virtual machine by utilizing a shut-down process. The shut-down process is executed on the cloned virtual machine to quiesce the cloned virtual machine and the quiesceing set of information of the cloned virtual machine is automatically reduced to information stored on the persistent storage device.

摘要翻译： 一种用于获取与虚拟机相关联的静止信息的集合的方法和系统。 一个虚拟机被克隆。 克隆的虚拟机具有关联的持久存储设备。 永久存储设备的状态通过关闭过程转换为克隆的虚拟机的静止状态。 关闭过程在克隆的虚拟机上执行，以暂停克隆的虚拟机，并将克隆的虚拟机的静止信息集自动还原为存储在永久存储设备上的信息。