Indentifying data for placement in a storage system
US9965381B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Dec 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Identifying data for placement in a storage system having a plurality of storage classes includes subdividing the data into portions, for each of the portions, independently determining at least one score for a particular portion based on a metric corresponding to access of the particular portion, where the at least one score for the particular portion is independent of scores for other ones of the portions, and identifying sub-portions of data for placement in a particular storage class based on the at least one score of a portion of data corresponding to the sub-portions. The at least one score may be based on short term access statistics and long term access statistics. The access statistics may include read misses, writes, and prefetches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.