Managing an object store based on object replacement penalties and reference probabilities
US6385699B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/123
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computerized method, system and computer program product for managing an object store is disclosed. An exemplary method includes the the steps of: collecting performance statistics about storage repositories from which an object(s) can be retrieved; retrieving an object from a storage repository, in response to an object reference; determining a reference probability (RFP) for the object; determining and associating a replacement penalty (RPP) with the object wherein the RPP is based on the one or more performance statistics and the RFP; and storing the object and an associated RPP for the object. The storage repositories could be locally attached devices, network sites, and/or remotely attached devices. If there is insufficient space in the object store for a new object, an object(s) can be replaced with the new object based on the associated RPP of the cached objects. Alternatively, the resolution of one or more objects in the object store can be reduced until sufficient space is available. The RPP determination is preferably based on the RFP for the object and performance and/or usage statistics. Examples of the performance statistics include: availability; size; latency; and …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.