公开(公告)号：US20110173356A1

公开(公告)日：2011-07-14

申请号：US12684122

申请日：2010-01-08

Applicant: VASANTHA PRABHU ,  Gaurab Paul ,  Rushi Srinivas Surla ,  Ritesh Tiwari

Inventor： VASANTHA PRABHU ,  Gaurab Paul ,  Rushi Srinivas Surla ,  Ritesh Tiwari

IPC: G06F13/00 ,  G06F12/00

CPC classification number: G06F9/526 ,  G06F2209/523

Abstract: A method, apparatus, and system of exclusive access during a critical sub-operation to enable simultaneous operations are disclosed. In one embodiment, a method of a host device includes identifying a critical sub-operation of an operation associated with a storage system, applying a lock associated with the critical sub-operation based on a type of the sub-operation, providing exclusive access of the critical sub-operation to a first instance requiring the critical sub-operation, denying other instances access to the critical sub-operation during an interval comprising a period when the first instance executes the critical sub-operation, and releasing the lock when the critical sub-operation is no longer required by the first instance. The first instance and the other instances may originate on different host devices.

Abstract translation: 公开了在关键子操作期间独占访问的方法，装置和系统以实现同时操作。 在一个实施例中，主机设备的方法包括识别与存储系统相关联的操作的关键子操作，基于子操作的类型应用与关键子操作相关联的锁，提供 关键子操作到需要关键子操作的第一个实例，拒绝其他实例在包括第一实例执行关键子操作的周期的间隔期间访问关键子操作，以及当关键子程序发生关键时释放锁 第一个实例不再需要子操作。 第一个实例和其他实例可以源自不同的主机设备。

公开(公告)号：US08850126B2

公开(公告)日：2014-09-30

申请号：US12684122

申请日：2010-01-08

Applicant: Vasantha Prabhu ,  Gaurab Paul ,  Rushi Srinivas Surla ,  Ritesh Tiwari

Inventor： Vasantha Prabhu ,  Gaurab Paul ,  Rushi Srinivas Surla ,  Ritesh Tiwari

IPC: G06F13/00 ,  G06F9/52

CPC classification number: G06F9/526 ,  G06F2209/523

Abstract: A method, apparatus, and system of exclusive access during a critical sub-operation to enable simultaneous operations are disclosed. In one embodiment, a method of a host device includes identifying a critical sub-operation of an operation associated with a storage system, applying a lock associated with the critical sub-operation based on a type of the sub-operation, providing exclusive access of the critical sub-operation to a first instance requiring the critical sub-operation, denying other instances access to the critical sub-operation during an interval comprising a period when the first instance executes the critical sub-operation, and releasing the lock when the critical sub-operation is no longer required by the first instance. The first instance and the other instances may originate on different host devices.

Abstract translation: 公开了在关键子操作期间独占访问的方法，装置和系统以实现同时操作。 在一个实施例中，主机设备的方法包括识别与存储系统相关联的操作的关键子操作，基于子操作的类型应用与关键子操作相关联的锁，提供 关键子操作到需要关键子操作的第一个实例，拒绝其他实例在包括第一实例执行关键子操作的周期的间隔期间访问关键子操作，以及当关键子程序发生关键时释放锁 第一个实例不再需要子操作。 第一个实例和其他实例可以源自不同的主机设备。

公开(公告)号：US08370589B1

公开(公告)日：2013-02-05

申请号：US12257136

申请日：2008-10-23

Applicant: Rushi Srinivas Surla ,  Gaurab Paul ,  Vasantha Prabhu ,  Ritesh Tiwari

Inventor： Rushi Srinivas Surla ,  Gaurab Paul ,  Vasantha Prabhu ,  Ritesh Tiwari

IPC: G06F12/16

CPC classification number: G06F11/1446 ,  G06F2201/84

Abstract: Techniques introduced herein allow writeable PPIs to be re-used. A writeable PPI manager can make use of existing writeable PPIs to offer logical units to clients without creating additional writeable PPIs. The writeable PPI manager can determine which writeable PPIs to re-use by testing the writeable PPIs for a variety of conditions. Advantageously, re-use of remaining logical units reduces unnecessary replication of data and increased overhead costs. Resources can thereby be conserved.

Abstract translation: 本文介绍的技术允许可重写的PPIs被重新使用。 可写PPI管理器可以利用现有的可编写PPI来为客户端提供逻辑单元，而无需创建额外的可写PPI。 可编写的PPI管理器可以通过测试各种条件下的可写PPI来确定哪些可写入PPI要重新使用。 有利地，重新使用剩余的逻辑单元减少了数据的不必要的复制和增加的间接成本。 因此可以节约资源。

公开(公告)号：US08341119B1

公开(公告)日：2012-12-25

申请号：US12558642

申请日：2009-09-14

Applicant: Konstantinos Roussos ,  Rushi Srinivas Surla ,  Vasantha Prabhu ,  Gaurab Paul ,  Ritesh Tiwari ,  Boris Teterin

Inventor： Konstantinos Roussos ,  Rushi Srinivas Surla ,  Vasantha Prabhu ,  Gaurab Paul ,  Ritesh Tiwari ,  Boris Teterin

IPC: G06F7/00 ,  G06F17/00

CPC classification number: G06F3/0605 ,  G06F3/065 ,  G06F3/067

Abstract: According to one or more of the provisions set forth herein, data can be managed in a data storage system in an efficient manner. In one example, a first flexible copy volume of data is generated based on a snapshot copy volume of a flexible volume containing the data. The first flexible copy volume is configured to be operated upon according to a first set of operations. A second flexible copy of the data is also generated based on the snapshot copy volume. The second flexible copy volume is configured to be operated upon according to a second set of operations that differs from the first set of operations. Having a second copy of the data allows testing or other operations to be performed on the data while also maintaining an original version of the data.

Abstract translation: 根据本文提出的一个或多个规定，可以以有效的方式在数据存储系统中管理数据。 在一个示例中，基于包含数据的灵活卷的快照副本卷生成第一灵活复制卷数据。 第一灵活复制卷被配置为根据第一组操作进行操作。 数据的第二个灵活的副本也是基于快照拷贝卷生成的。 第二灵活复制卷被配置为根据与第一组操作不同的第二组操作进行操作。 拥有数据的第二个副本允许对数据执行测试或其他操作，同时还维护数据的原始版本。