公开(公告)号：US11456885B1

公开(公告)日：2022-09-27

申请号：US14973096

申请日：2015-12-17

申请人： EMC Corporation

发明人： Stephen Todd ,  David Dietrich

IPC分类号： H04L43/091 ,  H04L12/14 ,  H04L41/5061 ,  G06Q30/02 ,  G06Q50/30

摘要： Data set valuation techniques are provided. For example, a request is obtained from a client to utilize one or more cloud computing services managed by at least one service provider. A valuation is determined for delivering the one or more requested cloud computing services to the client. The valuation determination includes determining a valuation of one or more data sets associated with the one or more cloud computing services.

公开(公告)号：US11256691B1

公开(公告)日：2022-02-22

申请号：US15197307

申请日：2016-06-29

申请人： EMC Corporation

发明人： Kunwu Huang ,  Lei Zhang ,  Chao Chen ,  Jingjing Liu ,  Hongtao Dai ,  Ying Teng

IPC分类号： G06F16/24 ,  G06F16/2453 ,  G06F16/248 ,  G06F16/9535 ,  G06F40/247 ,  G06F16/95

摘要： In general, in one aspect, the invention relates to a method for servicing requests. The method includes receiving, from a client system, a request comprising a query, where the query includes a first plurality of terms. The method further includes generating, using a thesaurus library, a related query including a second plurality of terms, where at least one term in the second plurality of terms is present in the first plurality of terms. The method further includes issuing the query to a content repository to obtain a first result, issuing the related query to the content repository to obtain a second result, processing the first result and the second result to generate a final result, and providing the final result to the client system.

公开(公告)号：US11102323B1

公开(公告)日：2021-08-24

申请号：US14971808

申请日：2015-12-16

申请人： EMC Corporation

发明人： Ryan Peterson ,  Brian Scott Cassell

IPC分类号： H04L29/06 ,  H04L29/08 ,  G06F3/06

摘要： In one example, a switch in the form of a network core switch includes one or more card slots. A cache memory device is also included that is configured to be received in one of the card slots. The switch further includes one or more storage node connection ports in communication with the cache memory device, and also includes one or more client communication ports in communication with the cache memory device.

公开(公告)号：US11074232B1

公开(公告)日：2021-07-27

申请号：US15198334

申请日：2016-06-30

申请人： EMC Corporation

发明人： Nickolay Dalmatov ,  Richard P. Ruef ,  Kurt William Everson

IPC分类号： G06F16/215 ,  G06F16/22

摘要： A method is used in managing deduplication of data in storage systems. A digest is determined for a data object received for deduplication. A candidate data object is identified for deduplicating the data object. A digest associated with the candidate data object matches the digest associated with the data object. The digest in a digest segment is maintained based on identification of the candidate data object. The digest segment includes a set of digests associated with a set of data blocks identified for deduplication in an ordered arrangement.

公开(公告)号：US11068819B1

公开(公告)日：2021-07-20

申请号：US14971770

申请日：2015-12-16

申请人： EMC Corporation

发明人： Ryan Peterson

IPC分类号： G06Q10/06

摘要： In one example, a method for data storage capacity planning includes receiving a data metrics stream that includes information concerning a client-generated data stream, receiving information concerning a data storage capacity of the client, and analyzing the received data metrics. Based on the analysis of the data metrics and based on the information concerning the data storage capacity of the client, a projected data storage capacity requirement for the client is generated. Finally, data storage assets that correspond to the projected data storage capacity need are identified.

公开(公告)号：US11016946B1

公开(公告)日：2021-05-25

申请号：US14674314

申请日：2015-03-31

申请人： EMC Corporation

发明人： Stephen G. Graham ,  Eron D. Wright

IPC分类号： G06F16/182 ,  G06F16/951

摘要： A distributed object store can expose object metadata, in addition to object data, to distributed processing systems, such as Hadoop and Apache Spark. The distributed object store may acts as a Hadoop Compatible File System (HCFS), exposing object metadata as a collection of records that can be efficiently processed by MapReduce (MR) and other distributed processing frameworks. Various metadata records formats are supported. Related methods are also described.

公开(公告)号：US11010101B1

公开(公告)日：2021-05-18

申请号：US14491151

申请日：2014-09-19

申请人： EMC Corporation

发明人： Philip Miloslavsky ,  Matthew David Ivester ,  David Shadmon

IPC分类号： G06F3/06

摘要： A storage array uses paged metadata. Each storage director has access to a plurality of object storage subsystems in a global memory. The object storage subsystems describe locations of paged metadata in backing storage. Each object storage subsystem includes a unique identifier, a pointer to a descriptive data structure that indicates availability of free space for paged metadata for that object storage subsystem, and different types of inodes which describe objects in backing storage. The object storage subsystems are used to locate metadata for loading into global memory, and creation and deletion of objects.

公开(公告)号：US10996864B1

公开(公告)日：2021-05-04

申请号：US15065353

申请日：2016-03-09

申请人： EMC Corporation

发明人： Subin George ,  Shwetha Handral Sridhara ,  Arieh Don ,  Mavvureddypatty Senguden Manickavasaham

IPC分类号： G06F3/06

摘要： In response to a target port group state query from a host, the storage arrays that present a replicated volume to the host aggregate port group state of the storage arrays into a single logical target port group state that is provided to the host. The storage array that receives the query from the host may prompt other storage arrays to provide target port group state and combine the responses from all storage arrays. Port IDs may be translated into unique port IDs so that the logical target port group state does not include repeated port IDs.

公开(公告)号：US20210049240A1

公开(公告)日：2021-02-18

申请号：US13800708

申请日：2013-03-13

申请人： EMC CORPORATION

发明人： Min-Chih L. Earl ,  Matthew D. Buchman ,  Jerzy Gruszka

IPC分类号： G06F17/30

摘要： In one example, a method is directed to defining and applying policies for backing up virtual machines in a cluster environment. One or more user input parameters are used to define a set of policies for a backup, and the policies in turn form the basis for development of a backup workflow which can then be scheduled and implemented according to the schedule.

公开(公告)号：US10891057B1

公开(公告)日：2021-01-12

申请号：US14986616

申请日：2015-12-31

申请人： EMC Corporation

发明人： Walter A. O'Brien, III ,  Steven A. Morley

IPC分类号： G06F12/00 ,  G06F3/06

摘要： There is disclosed a technique for use in optimizing write operations for flash devices. A system having a plurality of flash based solid state drives receives a write request to overwrite existing data stored on the solid state drives with new data. The write request data is formatted using a write granularity having a first size and the solid state drives are configured with a write granularity having a second size. Corresponding existing data is retrieved. The new data and the existing data are subdivided into multiple corresponding subunits where each subunit has a size equal to the second size. Each new data subunit is compared with each corresponding existing data subunit to identify which new data subunits include modified data. The new data subunits identified as having modified data are written to corresponding locations on the solid state drives.