Disk drive employing thresholds for cache memory allocation
US6711635B1 · kind B1 · utility
138Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Oct 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/023
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disk drive is disclosed comprising a disk having a plurality of tracks, each track comprising a plurality of blocks. A semiconductor memory comprises a cache buffer having a plurality of segment pools, each segment pool comprising a plurality of cache segments, each cache segment comprises at least one block, and the number of blocks in each cache segment varies between segment pools. When a host command is received, the command size is compared to a threshold in order to allocate a cache segment from a first segment pool or a second segment pool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.