公开(公告)号：US20210075855A1

公开(公告)日：2021-03-11

申请号：US17062411

申请日：2020-10-02

Applicant: VMware, Inc.

Inventor： Richard Spillane ,  Yunshan Luke Lu ,  Wenguang Wang ,  Maxime Austruy ,  Christos Karamanolis ,  Rawlinson Rivera

IPC: H04L29/08 ,  G06F9/455 ,  G06F16/11 ,  G06F16/178

Abstract: Examples disclosed herein relate to propagating changes made on a file system volume of a primary cluster of nodes to the same file system volume also being managed by a secondary cluster of nodes. An application is executed on both clusters, and data changes on the primary cluster are mirrored to the secondary cluster using an exo-clone file. The exo-clone file includes the differences between two or more snapshots of the volume on the primary cluster, along with identifiers of the change blocks and (optionally) state information thereof. Just these changes, identifiers, and state information are packaged in the exo-clone file and then exported to the secondary cluster, which in turn makes the changes to its version of the volume. Exporting just the changes to the data blocks and the corresponding block identifiers drastically reduces the information needed to be exchanged and processed to keep the two volumes consistent.

公开(公告)号：US10812582B2

公开(公告)日：2020-10-20

申请号：US15191228

申请日：2016-06-23

Applicant: VMware, Inc.

Inventor： Richard Spillane ,  Yunshan Luke Lu ,  Wenguang Wang ,  Maxime Austruy ,  Christos Karamanolis ,  Rawlinson Rivera

IPC: G06F16/00 ,  H04L29/08 ,  G06F9/455 ,  G06F16/11 ,  G06F16/178

Abstract: Examples disclosed herein relate to propagating changes made on a file system volume of a primary cluster of nodes to the same file system volume also being managed by a secondary cluster of nodes. An application is executed on both clusters, and data changes on the primary cluster are mirrored to the secondary cluster using an exo-clone file. The exo-clone file includes the differences between two or more snapshots of the volume on the primary cluster, along with identifiers of the change blocks and (optionally) state information thereof. Just these changes, identifiers, and state information are packaged in the exo-clone file and then exported to the secondary cluster, which in turn makes the changes to its version of the volume. Exporting just the changes to the data blocks and the corresponding block identifiers drastically reduces the information needed to be exchanged and processed to keep the two volumes consistent.

公开(公告)号：US20170264684A1

公开(公告)日：2017-09-14

申请号：US15191228

申请日：2016-06-23

Applicant: VMware, Inc.

Inventor： Richard Spillane ,  Yunshan Luke Lu ,  Wenguang Wang ,  Maxime Austruy ,  Christos Karamanolis ,  Rawlinson Rivera

IPC: H04L29/08 ,  G06F9/455 ,  G06F17/30

CPC classification number: H04L67/1095 ,  G06F9/45558 ,  G06F16/128 ,  G06F16/178 ,  G06F2009/45562 ,  G06F2009/4557 ,  G06F2009/45595

Abstract: Examples disclosed herein relate to propagating changes made on a file system volume of a primary cluster of nodes to the same file system volume also being managed by a secondary cluster of nodes. An application is executed on both clusters, and data changes on the primary cluster are mirrored to the secondary cluster using an exo-clone file. The exo-clone file includes the differences between two or more snapshots of the volume on the primary cluster, along with identifiers of the change blocks and (optionally) state information thereof. Just these changes, identifiers, and state information are packaged in the exo-clone file and then exported to the secondary cluster, which in turn makes the changes to its version of the volume. Exporting just the changes to the data blocks and the corresponding block identifiers drastically reduces the information needed to be exchanged and processed to keep the two volumes consistent.