System for conserving metadata about data snapshots
US6823436B2 · kind B2 · utility
59Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system and method manage usage metadata nodes about data snapshots of data write operations among storage volumes of the system while conserving metadata nodes. Metadata sublogging is achieved by dividing metadata segments into subsegments and tracking them by use of a bitmap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.