Relocating data from an end of life storage drive based on storage drive loads in a data storage system using mapped RAID (redundant array of independent disks) technology
US10289336B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Technology for relocating data stored in an end of life source storage drive that identifies individual destination drive extents corresponding to drive extents located in the source storage drive by selecting individual storage drives within a set of healthy storage drives in a group of storage drives in a round robin manner and identifying an individual destination drive extent from each selected storage drive. The corresponding destination drive extents replace the drive extents located in the source storage drive, and are used to store data copied from the drive extents located in the source storage drive. Data is copied in parallel from a set of multiple drive extents located in the source storage drive that is selected based on the current total input/output load determined for each storage drive in the set of healthy storage drives, and on the storage drives on which the corresponding destination drive extents are located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.