Extent size optimization
US8775766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2010 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for automatically optimizing an allocation amount for a data set includes receiving an extend request, specifying an allocation amount, for a data set in a storage pool. The method increments a counter in response to receiving the extend request. In the event the counter has reached a threshold value, the method automatically increases the allocation amount of the extend request, such as by multiplying the allocation amount by a multiplier. In the event the allocation amount is larger than a largest free extent in the storage pool, the method automatically decreases the allocation amount of the extend request to correspond to the largest available free extent. Such a method reduces or eliminates the chance that an extend request will fail, and reduces overhead associated with extending and consolidating extents. A corresponding apparatus and computer program product are also disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.