Metadata management for pools of storage disks
US8793290B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2011 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0665
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing metadata for pools of storage disks, are described. In some implementations, a system includes a processor, a memory and a storage system. The storage system contains a storage pool including multiple storage devices. Further, the storage system is configured to store in persistent storage associated with the storage pool a bitmap that is configured to indicate whether metadata blocks corresponding to one or more virtual volumes associated with the storage pool are free or occupied. In addition, the processor is configured to perform operations including accessing at least portions of the bitmap, and managing, based on information from the accessed portions, at least some of the metadata blocks stored in the persistent storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.