公开(公告)号：US11755226B2

公开(公告)日：2023-09-12

申请号：US17025080

申请日：2020-09-18

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Ayman Abouelwafa ,  Murali Vaddagiri

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0619

Abstract: In some examples, a system transfers, in a first transfer operation, data of a first storage volume of a first storage location to a second storage volume for a second storage location. Responsive to a completion of the transfer of data of the first storage volume to the second storage volume, the system activates tracking information to track changes to data portions of the second storage volume, the tracking information comprising a plurality of indicators that map to respective different data portions of the second storage volume. As part of a second transfer operation following the first transfer operation, the system transfers changed data indicated by the tracking information from the second storage volume to the first storage volume, without transferring unchanged data in the second storage volume to the first storage volume.

公开(公告)号：US11720274B2

公开(公告)日：2023-08-08

申请号：US17166009

申请日：2021-02-03

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Ayman Abouelwafa ,  Murali Vaddagiri

IPC: G06F3/00 ,  G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/0604 ,  G06F3/065 ,  G06F3/067 ,  G06F3/0629 ,  G06F3/0683

Abstract: In some examples, for migrating data from a first storage system to a second storage system, a system creates a proxy at the first storage system to direct write requests received at the first storage system to the second storage system, initially sets a cache in the first storage system to a first state in which the cache stores write data for first write requests, and changes a state of the cache from the first state to a second state in which write data for second write requests bypasses the cache and are directed by the proxy to the second storage system.

公开(公告)号：US20220091770A1

公开(公告)日：2022-03-24

申请号：US17025080

申请日：2020-09-18

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Ayman Abouelwafa ,  Murali Vaddagiri

IPC: G06F3/06

Abstract: In some examples, a system transfers, in a first transfer operation, data of a first storage volume of a first storage location to a second storage volume for a second storage location. Responsive to a completion of the transfer of data of the first storage volume to the second storage volume, the system activates tracking information to track changes to data portions of the second storage volume, the tracking information comprising a plurality of indicators that map to respective different data portions of the second storage volume. As part of a second transfer operation following the first transfer operation, the system transfers changed data indicated by the tracking information from the second storage volume to the first storage volume, without transferring unchanged data in the second storage volume to the first storage volume.

公开(公告)号：US20160342362A1

公开(公告)日：2016-11-24

申请号：US15112796

申请日：2014-01-23

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Murali Vaddagiri ,  Jonathan Andrew McDowell ,  Siamak Nazari

IPC: G06F3/06

CPC classification number: G06F3/0647 ,  G06F3/0604 ,  G06F3/0617 ,  G06F3/0644 ,  G06F3/067

Abstract: Disclosed herein is a storage array configured for volume migration. An example of the storage array includes migration logic, at least partially comprising hardware logic, to establish a pass-through volume in the storage array wherein the pass-through volume is not associated with local storage in the storage array, such that communication paths between a host computing device, a source volume, and the pass-through volume during are maintained during migration. The migration logic is configured to convert the pass-through volume to a destination volume in the storage array after data migration, wherein the destination volume is associated with local storage within the storage array.

Abstract translation: 这里公开了一种配置用于体积迁移的存储阵列。 存储阵列的示例包括至少部分地包括硬件逻辑的迁移逻辑，以在存储阵列中建立传递卷，其中传递卷不与存储阵列中的本地存储相关联，使得在 迁移期间维护主机计算设备，源卷和传递卷。 迁移逻辑被配置为在数据迁移之后将传递卷转换为存储阵列中的目标卷，其中目标卷与存储阵列中的本地存储相关联。

公开(公告)号：US20220244876A1

公开(公告)日：2022-08-04

申请号：US17166009

申请日：2021-02-03

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Ayman Abouelwafa ,  Murali Vaddagiri

IPC: G06F3/06

Abstract: In some examples, for migrating data from a first storage system to a second storage system, a system creates a proxy at the first storage system to direct write requests received at the first storage system to the second storage system, initially sets a cache in the first storage system to a first state in which the cache stores write data for first write requests, and changes a state of the cache from the first state to a second state in which write data for second write requests bypasses the cache and are directed by the proxy to the second storage system.