公开(公告)号：US09778853B1

公开(公告)日：2017-10-03

申请号：US14291395

申请日：2014-05-30

Applicant: EMC Corporation

Inventor： Deepak M. Gaikwad ,  Robert J. Pellowski ,  Edith Epstein ,  Hitesh Trivedi ,  Helen S. Raizen

IPC: G06F3/06

CPC classification number: G06F3/0611 ,  G06F3/0653 ,  G06F3/0689 ,  G06F11/3419 ,  G06F11/3485 ,  G06F2003/0692 ,  G06F2201/835 ,  G06F2201/88

Abstract: An improved technique for storing I/O metrics includes assigning metric values to data buckets held in kernel memory. Each data bucket covers a particular range of values of a respective metric and is configured as a counter, whose count is incremented each time the multipathing driver obtains or computes a metric value that falls within the range of the data bucket. Bucket counts can be read by an external program to obtain aggregate information about I/O metrics over time. The aggregate information can be fed back to the multipathing driver to enable improved selections of paths for conveying data to and from a storage array.

公开(公告)号：US09081704B1

公开(公告)日：2015-07-14

申请号：US13857396

申请日：2013-04-05

Applicant: EMC Corporation

Inventor： Tao Tao ,  Harold M. Sandstrom ,  Helen S. Raizen ,  Michael E. Bappe ,  Edith Epstein ,  Santhosh Venkatesh Kudva ,  Eric I. West

IPC: G06F13/10 ,  G06F9/44 ,  G06F3/06

CPC classification number: G06F13/102 ,  G06F3/0659 ,  G06F9/4411 ,  G06F9/44505

Abstract: Described are techniques for upgrading a driver. A driver is installed which includes an upgrade facility, a base driver and a first set of one or more driver extension modules for processing input/output operations for one or more devices. Processing is performed to upgrade the driver using the upgrade facility. The processing includes loading one or more upgrade modules associated with a second version of said driver and performing cutover processing for each of the one or more devices.

Abstract translation: 描述了升级驱动程序的技术。 安装驱动器，其包括升级设备，基本驱动器和用于处理一个或多个设备的输入/输出操作的一个或多个驱动器扩展模块的第一组。 执行处理以使用升级设施升级驱动程序。 所述处理包括加载与所述驱动器的第二版本相关联的一个或多个升级模块，并对所述一个或多个设备中的每一个执行切换处理。

公开(公告)号：US09160526B1

公开(公告)日：2015-10-13

申请号：US13900150

申请日：2013-05-22

Applicant: EMC Corporation

Inventor： Helen Raizen ,  Michael Emerald Bappe ,  Edith Epstein ,  Atul Kabra ,  Cesareo Contreras ,  Assaf Natanzon ,  Harold Martin Sandstrom

IPC: H04L9/08

CPC classification number: H04L9/08 ,  G06F21/6218

Abstract: A method performed in a device is provided. The method includes (a) receiving key identification information from a key controller module on an external host, (b) obtaining a key identified by the key identification information from an external key server, (c) decrypting encrypted data from an encrypted storage system using the key, and (d) processing the decrypted data. A corresponding computer program product is also provided.

Abstract translation: 提供了一种在设备中执行的方法。 该方法包括：（a）从外部主机上的密钥控制器模块接收密钥识别信息，（b）从外部密钥服务器获得由密钥识别信息识别的密钥，（c）使用加密存储系统对加密数据进行解密， 密钥，（d）处理解密的数据。 还提供了相应的计算机程序产品。