公开(公告)号：US20230306108A1

公开(公告)日：2023-09-28

申请号：US17700958

申请日：2022-03-22

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Alex Veprinsky ,  Charles F. Clark ,  John Blumenthal ,  Ayman Abouelwafa

IPC: G06F21/55

CPC classification number: G06F21/552 ,  G06F2221/034

Abstract: In some examples, a system applies an inline detection of a write of data in a storage, the inline detection to detect potential data encryption of the data. In response to an indication of the potential data encryption, the system creates a first object that represents a first version of the data, and applies a further analysis to determine whether the potential data encryption constitutes unauthorized data encryption, the further analysis based on the first object and a second object that represents a second version of the data that is prior to the first version of the data.

公开(公告)号：US10452503B2

公开(公告)日：2019-10-22

申请号：US15721284

申请日：2017-09-29

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Ayman Abouelwafa ,  Douglas L Voigt ,  Alex Veprinsky

IPC: G06F12/00 ,  G06F11/20 ,  G06F3/06 ,  H04L29/08 ,  G06F11/14

Abstract: An example data storage system includes a first storage array having a first LUN and a second storage array having a second LUN. The first and second storage arrays may implement replication from the first LUN as a primary LUN to the second LUN as a secondary LUN. The first and second LUNs may both be an active target for host write I/O. The second storage array may, in response to receiving from a host a write that is directed to the second LUN, send write data of the write to the first storage for replication array while maintaining a copy of the write data in a fenced portion of a cache of the second storage array. The second storage array may wait to release the copy of the write data to the second LUN until a write acknowledgment is received from the first storage array.