公开(公告)号：US09305009B1

公开(公告)日：2016-04-05

申请号：US14041191

申请日：2013-09-30

Applicant: EMC Corporation

Inventor： Jean-Pierre Bono ,  Himabindu Tummala ,  Assaf Natanzon

IPC: G06F17/00 ,  G06F7/00 ,  G06F17/30

CPC classification number: G06F17/30174

Abstract: A technique for managing replication of VSPs (Virtualized Storage Processors) proceeds on a per-VSP basis by (i) identifying the data objects associated with a VSP, (ii) establishing a common set of replication settings across all of the data objects associated with the VSP, and (iii) replicating the VSP by replicating each of the identified data objects associated with the VSP in accordance with the common set of replication settings established across all of the data objects associated with the VSP. The technique avoids the need for administrators to separately configure and manage replication on large numbers of individual data objects and thus reduces administrative burdens.

Abstract translation: 用于管理VSP（虚拟化存储处理器）的复制的技术通过以下方式进行：（i）识别与VSP相关联的数据对象，（ii）在与所有数据对象相关联的所有数据对象上建立共同的复制设置集合 VSP，以及（iii）通过根据与VSP相关联的所有数据对象建立的公共复制设置复制每个与VSP相关联的所识别的数据对象来复制VSP。 该技术避免了管理员需要单独配置和管理大量单个数据对象上的复制，从而减少了管理负担。

公开(公告)号：US09158630B1

公开(公告)日：2015-10-13

申请号：US14133945

申请日：2013-12-19

Applicant: EMC Corporation

Inventor： Assaf Natanzon

IPC: G06F12/00 ,  G06F13/00 ,  G06F11/14 ,  G06F3/06

CPC classification number: G06F3/067 ,  G06F3/0619 ,  G06F3/065 ,  G06F11/2094 ,  G06F11/2097 ,  G06F2201/83 ,  G06F2201/84 ,  G06F2201/855

Abstract: In one aspect, a method includes marking a list of locations currently being shipped to a replica site, generating course granularity hash signatures of data for each area of memory in the snapshot volume, generating fine granularity hash signatures of data for each subarea of memory in the snapshot volume, sending course granularity hash signatures to the replica site for each area not being changed in a production volume and sending fine granularity hash signatures to the replica site for each area being changed in the production volume. The snapshot volume is a snapshot of the production volume.

Abstract translation: 一方面，一种方法包括标记当前正在运送到副本站点的位置的列表，为快照卷中的每个存储区域生成数据的路径粒度哈希签名，为存储器的每个子区域生成数据的精细粒度散列签名 快照卷，将生产卷中未更改的每个区域的路径粒度散列签名发送到副本站点，并将生产卷中正在更改的每个区域的复制站点发送精细哈希签名。 快照卷是生产卷的快照。

公开(公告)号：US09110914B1

公开(公告)日：2015-08-18

申请号：US13827959

申请日：2013-03-14

Applicant: EMC Corporation

Inventor： Shahar Frank ,  Assaf Natanzon ,  Jehuda Shemer

IPC: G06F17/30

CPC classification number: G06F17/30156 ,  G06F11/14

Abstract: In one aspect, a method includes intercepting a write I/O to a first storage volume of a first storage array having a deduplication-based storage functionality, sending metadata and a signature to a replication data protection appliance and increasing a first reference count representing the data in the write I/O stored at the first storage array if the signature is written to the first journal.

Abstract translation: 在一个方面，一种方法包括：将具有基于重复数据删除的存储功能的第一存储阵列的第一存储卷的写I / O截取，向复制数据保护装置发送元数据和签名，并增加代表复制数据保护装置的第一参考计数 如果签名被写入第一个日志，则存储在第一个存储阵列中的写入I / O中的数据。

公开(公告)号：US08996460B1

公开(公告)日：2015-03-31

申请号：US13827862

申请日：2013-03-14

Applicant: EMC Corporation

Inventor： Shahar Frank ,  Assaf Natanzon ,  Jehuda Shemer

IPC: G06F17/30

CPC classification number: G06F17/30088 ,  G06F11/14

Abstract: In one aspect, a method to generate a point-in-time (PIT) snapshot of deduplication-based volume includes generating a virtual access data structure, generating a preliminary snapshot of the volume and modifying the preliminary snapshot to point to a block according to the virtual access data structure to generate the PIT snapshot of the deduplication-based volume.

Abstract translation: 一方面，一种生成基于重复数据消除的卷的时间点（PIT）快照的方法包括生成虚拟访问数据结构，生成卷的初步快照，并修改初步快照以指向根据 虚拟访问数据结构来生成基于重复数据消除的卷的PIT快照。

公开(公告)号：US10776317B1

公开(公告)日：2020-09-15

申请号：US14674877

申请日：2015-03-31

Applicant: EMC Corporation

Inventor： Sairam Veeraswamy ,  Assaf Natanzon ,  Nir Goldschmidt ,  Anat Parush Tzur ,  Ajay Potnis

IPC: G06F16/17 ,  G06F3/06 ,  G06F16/11

Abstract: Embodiments are described for detecting a data organization issue in a storage system by analyzing static and dynamic layout characteristics for data stored in the storage system, workload characteristics for applications utilizing the data, virtualization effects of the storage system on the organization of the data, input/output characteristics of processes storing the data in the storage system, and cache usage characteristics of the data. For fragmentation issues, the system uses the analysis to provide defragmentation advisories to reduce fragmentation by at least one of: re-layout or re-tiering of the data in the data storage system, or cache memory reconfiguration.

公开(公告)号：US10725967B1

公开(公告)日：2020-07-28

申请号：US14501245

申请日：2014-09-30

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Jehuda Udi Shemer

IPC: G06F16/11

Abstract: A system, method, and computer program product comprising receiving replicated IO direct to an image on a production site; wherein the replicated IO is a copy of IO for application to the image on the production site, storing the replicated IO in a differential structure in a journal, processing the IO on the image on the replication site, and periodically processing the differential structure to be become a differential snapshot; wherein the differential snapshot may be used by a hypervisor to provide instant access to the point in time corresponding to the differential snapshot.

公开(公告)号：US10484179B1

公开(公告)日：2019-11-19

申请号：US14673919

申请日：2015-03-31

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Amir Amit

IPC: H04L9/32 ,  G06F3/06

Abstract: A System, Computer Program Product, and computer-executable method for testing data consistency in a replicated data storage environment, wherein the replicated data storage environment includes a production site and a target site, wherein the target site is located within a cloud storage provider, the System, Computer Program Product, and computer-executable method includes receiving a request for a data consistency check of encrypted data stored at the target site, retrieving replicated signatures from the target site, retrieving production signatures from the production site, and determining data consistency based on an analysis of the replicated signatures and the production signatures.

公开(公告)号：US10372556B1

公开(公告)日：2019-08-06

申请号：US15197857

申请日：2016-06-30

Applicant: EMC Corporation

Inventor： Leehod Baruch ,  Assaf Natanzon ,  Ron Bigman ,  Jehuda Shemer ,  Amit Lieberman

IPC: G06F11/00 ,  G06F11/14 ,  H04L29/08 ,  G06F11/16 ,  G06F11/20

Abstract: Embodiments of the present disclosure relate to a method, an apparatus and a computer program product of recovering from a failure of a first node within a data storage system by receiving notice from the data storage system that the first node has failed; and restoring the first node based on a heat map of data I/O activity to the first node.

公开(公告)号：US10346260B1

公开(公告)日：2019-07-09

申请号：US14870116

申请日：2015-09-30

Applicant: EMC Corporation

Inventor： Assaf Natanzon ,  Philip Derbeko

IPC: G06F16/27 ,  G06F11/14 ,  G06F3/06

Abstract: A computer implemented method, system, and computer comprising intercepting an production IO at a splitter, determining if the production IO is a write IO, based on a positive determination of a write IO; replicating a copy of the write IO, based on a negative determination, determining if the production IO is a read IO and based on a positive determination of a read IO; replicating to metadata of the read IO.

公开(公告)号：US10324843B1

公开(公告)日：2019-06-18

申请号：US15164520

申请日：2016-05-25

Applicant: EMC Corporation

Inventor： David Erel ,  Assaf Natanzon

IPC: G06F12/00 ,  G06F12/0808 ,  G06F12/0815

Abstract: A method, computer program product, and computing system for receiving an indication of an intent to restore at least a portion of a data array based upon a historical record of the data array. One or more changes made to the content of that data array after the generation of the historical record may be identified, thus generating a differential record. One or more data entries within a cache memory system associated with the at least a portion of a data array may be invalidated based, at least in part, upon the differential record.