Replication progress for UPIT snapshots
US11210319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2019 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jun 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2379
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for storing progress data while replicating a snapshot is disclosed. The operations comprise: determining blocks in a storage object that are different between a first and a second snapshots, wherein the first snapshot corresponds to a first tree structure, and the second snapshot corresponds to a second tree structure; and replicating the second snapshot to a remote storage system, comprising replicating all the blocks in the storage object determined to be different between the first and the second snapshots, wherein the replicating further comprises: upon completion of replication of each data slice, determining nodes in the first tree structure that reference only already-replicated blocks; orphaning all such nodes in the first tree structure; and subsequently, updating the first tree structure, comprising merging the first tree structure and the second tree structure, wherein the first tree structure is updated upon completion of replication of each data slice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.