公开(公告)号：US20230125085A1

公开(公告)日：2023-04-27

申请号：US17507656

申请日：2021-10-21

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Valerie Lotosh ,  Erez Sharvit

IPC: G06F9/455

Abstract: A system can determine to restore a datacenter that comprises a group of virtualized workloads. The system can determine respective associations between respective virtualized workloads and respective datastores. The system can determine to restore a first virtualized workload of the group of virtualized workloads first. The system can restore a first portion of infrastructure that corresponds to the first virtualized workload first among a group of infrastructure. The system can, after restoring the first portion of infrastructure, restore a first portion of data that corresponds to the first virtualized workload first among a group of data. The system can, after restoring the first portion of data, restore a first portion of a virtualization layer that corresponds to the first virtualized workload first among a group of virtualization layers. The system can, after restoring the first portion of the virtualization layer, restore the first virtualized workload.

公开(公告)号：US11630597B2

公开(公告)日：2023-04-18

申请号：US16802854

申请日：2020-02-27

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Valerie Lotosh ,  Saar Cohen ,  Erez Sharvit

IPC: G06F3/06 ,  G06F11/20

Abstract: Generating any point in time backups from secondary storage without native snapshot generation and providing failover capabilities from a primary storage. Data or IOs from a source are distributed to both the primary storage and the secondary storage. When a disaster occurs with one of these storages, recovery of one of the storages can be achieved using a delta marker and data from the other of the storages.

公开(公告)号：US20220391287A1

公开(公告)日：2022-12-08

申请号：US17303605

申请日：2021-06-03

Applicant: EMC IP Holding Company LLC

Inventor： Valerie Lotosh ,  Erez Sharvit ,  Jehuda Shemer

IPC: G06F11/14 ,  G06F3/06

Abstract: One example method includes performing a recovery operation. A recovery operation is performed using streams rather than volumes in the cloud. Do data is written to a do stream. When the do data is applied to a cloud volume, which is a copy or replica of a production volume, data being replaced is saved to an undo stream to ensure that any PiT can be recovered using one or more of the cloud volume, the do stream and/or the undo stream.

公开(公告)号：US20220335059A1

公开(公告)日：2022-10-20

申请号：US17235391

申请日：2021-04-20

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Erez Sharvit ,  Valerie Lotosh

IPC: G06F16/27

Abstract: One example method includes measuring a journal distribution lag of a journal, evaluating a first operational measure at a production site, and evaluating a second operational measure at a replication site operable to communicate with a production site, based on the journal distribution lag, and the evaluation of the first operational measure and the second operational measure, determining a scale out for a consistency group of the replication site, and implementing the scale out of the consistency group.

公开(公告)号：US20210271390A1

公开(公告)日：2021-09-02

申请号：US16802854

申请日：2020-02-27

Applicant: EMC IP Holding Company LLC

Inventor： Jehuda Shemer ,  Valerie Lotosh ,  Saar Cohen ,  Erez Sharvit

IPC: G06F3/06 ,  G06F11/20

Abstract: Generating any point in time backups from secondary storage without native snapshot generation and providing failover capabilities from a primary storage. Data or IOs from a source are distributed to both the primary storage and the secondary storage. When a disaster occurs with one of these storages, recovery of one of the storages can be achieved using a delta marker and data from the other of the storages.

公开(公告)号：US09946485B1

公开(公告)日：2018-04-17

申请号：US15386042

申请日：2016-12-21

Applicant: EMC IP HOLDING COMPANY LLC

Inventor： Arieh Don ,  Slavik Neymer ,  Jehuda Shemer ,  Alexandra Solan ,  Valerie Lotosh

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0617 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/067 ,  G06F11/14

Abstract: A changed block bitmap of a volume of storage is represented by a data marker that includes an offset to a first dirty block and an offset to a last dirty block. The blocks between the first and last dirty blocks are represented by contiguous clean block identifiers, contiguous dirty block identifiers, and contiguous mixed clean and dirty block identifiers. The contiguous clean block identifiers and contiguous dirty block identifiers use one or two bits to indicate identifier type. The remaining bits indicate a numerical count of contiguous clean or dirty blocks. The contiguous mixed clean and dirty block identifiers may use one bit per block to indicate change status. The data marker may be smaller than a corresponding changed block bitmap.