Metadata management in storage systems
US11550479B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2021 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Oct 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/466
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for managing metadata of a storage system. A storage control system receives data to be written to primary storage, and writes the received data together with metadata to a write cache. The storage control system destages the metadata from the write cache to a primary metadata structure which is configured to persistently store and index the metadata. The primary metadata structure comprises (i) a first data structure that is configured to accumulate the metadata destaged from the write cache and organize the accumulated metadata in blocks of metadata sorted by index keys, and (ii) a second data structure that is configured to receive the accumulated metadata from the first data structure, and organize the received metadata using an index structure that enables random-access to the metadata using the index keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.