Efficient handing of semi-asynchronous raid write failures
US9304865B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/805
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
For efficient handing of semi-asynchronous RAID write failures using a processor device in a computing environment, a write operation is committed on a primary copy of data on a primary entity while sending the data to a secondary entity while awaiting an acknowledgment by the secondary entity. The acknowledgment indicates to the primary entity that metadata for the write operation has arrived at the secondary entity without necessarily indicating the data has arrived at the secondary entity. The acknowledgment is sent from the secondary entity regardless of a write failure and allowing the secondary entity to perform a recovery operation if a write failure occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.