Tagging write requests to avoid data-log bypass and promote inline deduplication during copies
US10268381B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Oct 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage technique includes selectively tagging a set of write requests by applying tags to write requests that are pursuant to copy operations and not applying tags to at least some write requests that are not pursuant to copy operations. For each of the set of write requests, the technique further includes performing a decision operation configured to (i) direct the write request down a first processing path that supports inline deduplication in response to the write request satisfying a set of criteria and (ii) direct the write request down a second processing path that does not support inline deduplication in response to the write request failing to satisfy the set of criteria. The set of criteria include whether the write request has a tag applied, such that the decision operation preferentially directs write requests down the first processing path in response to the write requests being tagged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.