Checkpointing of metadata into user data area of a content addressable storage system
US10176046B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus in one embodiment comprises a storage system having a plurality of storage devices and an associated storage controller. The storage devices are configured to provide a metadata area and a user data area, the user data area being separated into pages. The storage controller is configured to initiate generation of one or more checkpoints in the storage system. In conjunction with the generation of a given one of the one or more checkpoints in the storage system, the storage controller causes checkpointed metadata from the metadata area to be stored in the user data area. The storage controller further stores mapping information relating portions of the checkpointed metadata to respective pages of the user data area that store those portions of the checkpointed metadata. The mapping information illustratively comprises page location arrays and array location arrays, and in some embodiments further comprises one or more higher-level location arrays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.