Maintaining track format metadata for target tracks in a target storage in a copy relationship with source tracks in a source storage
US10223274B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2017 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Aug 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0683
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided area computer program product, system, and method for maintaining track format metadata for target tracks in a target storage in a copy relationship with source tracks in a source storage. Upon receiving a request to a requested target track in the target storage, the source track for the requested target track is staged from the source storage to a cache to be used as the requested target track in response to determining that the copy relationship information indicates that a source track needs to be copied to the requested target track. A determination is made of track format metadata for the requested target track, comprising the staged source track, indicating a format and layout of data in the requested target track and a track format code identifying the track format metadata. The track format code is included in a cache control block for the requested target track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.