Intra-tier data migration to segregate zombie storage from dead storage
US10528295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2017 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | May 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/185
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for segregating zombie storage from dead storage is disclosed. In one embodiment, such a method includes tracking I/O to a storage tier intended to store inactive data. The method analyzes the I/O to identify slightly active data in the storage tier. The method further logically divides the storage tier into a zombie storage pool, intended to store slightly active data, and a dead storage pool, intended to store inactive data. The method segregates, within the storage tier, the slightly active data from the inactive data. This segregation process includes storing the slightly active data in the zombie storage pool and storing the inactive data in the dead storage pool. A corresponding system and computer program product are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.