Providing and utilizing high performance block storage metadata
US8069317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0676
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An enhanced mechanism for the allocation, organization and utilization of high performance block storage metadata provides a stream of data (e.g., in a server system, storage system, DASD, etc.) that includes a sequence of fixed-size blocks which together define a page. Each of the fixed-size blocks includes a data block and a footer. A high performance block storage metadata unit associated with the page is created from a confluence of the footers. Each footer in the confluence of footers has space available for application metadata, which are provided as one or more information units. At least one of the footers includes a Checksum field containing a checksum that covers at least the confluence of footers. This approach is advantageous in that it provides data integrity protection, protects against stale data, and significantly increases the amount of metadata space available for application use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.