公开(公告)号：US11989415B2

公开(公告)日：2024-05-21

申请号：US17818805

申请日：2022-08-10

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Samuel Lee Bruns ,  Marcel Furtado Almeida

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/064 ,  G06F3/0641 ,  G06F3/0653 ,  G06F3/067 ,  G06F3/0671

Abstract: In some examples, a system computes a measure of data overwrites to a data segment stored in a storage structure, where the measure of data overwrites indicates a quantity of overwrites of data in the data segment. The system compares the measure of data overwrites to a criterion. In response to determining that the measure of data overwrites has a first relationship with respect to the criterion, the system disables data reduction for the data segment.

公开(公告)号：US11321002B2

公开(公告)日：2022-05-03

申请号：US16215962

申请日：2018-12-11

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Roopesh Kumar Tamma ,  Marcel Furtado Almeida

IPC: G06F3/06 ,  G06F9/455

Abstract: In some examples, a system converts a virtual volume from a first volume type to a second volume type without modifying the virtual volume, the converting comprising accessing a source metadata associated with the virtual volume, the source metadata including information for the first volume type, and generating a destination metadata associated with the virtual volume, the destination metadata including information for the second volume type. While the virtual volume is being converted from the first volume type to the second volume type, the system processes a write operation that accesses a portion of the virtual volume and changes data in the accessed portion of the virtual volume.

公开(公告)号：US20240053889A1

公开(公告)日：2024-02-15

申请号：US17818805

申请日：2022-08-10

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Samuel Lee Bruns ,  Marcel Furtado Almeida

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0653 ,  G06F3/0671

Abstract: In some examples, a system computes a measure of data overwrites to a data segment stored in a storage structure, where the measure of data overwrites indicates a quantity of overwrites of data in the data segment. The system compares the measure of data overwrites to a criterion. In response to determining that the measure of data overwrites has a first relationship with respect to the criterion, the system disables data reduction for the data segment.

公开(公告)号：US20200183601A1

公开(公告)日：2020-06-11

申请号：US16215962

申请日：2018-12-11

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Roopesh Kumar Tamma ,  Marcel Furtado Almeida

IPC: G06F3/06 ,  G06F9/455

Abstract: In some examples, a system converts a virtual volume from a first volume type to a second volume type without modifying the virtual volume, the converting comprising accessing a source metadata associated with the virtual volume, the source metadata including information for the first volume type, and generating a destination metadata associated with the virtual volume, the destination metadata including information for the second volume type. While the virtual volume is being converted from the first volume type to the second volume type, the system processes a write operation that accesses a portion of the virtual volume and changes data in the accessed portion of the virtual volume.