Method and means for dynamic cache management by variable space and time binding and rebinding of cache extents to DASD cylinders
US5499354A · kind A · utility
106Cited by
7References
6Claims
0Family size
Assignee
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Key dates
| Filing date | May 19, 1993 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | May 19, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/312
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Dynamic allocation of read cache space is allocated among bands of DASD cylinders rather than to data sets or processes as a function of a weighted average hit ratio to the counterpart cache space. Upon the hit ratio falling below a predetermined threshold, the bands are disabled for a defined interval as measured by cache accesses and then rebound to cache space again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.