Managing write operations to an extent of tracks migrated between storage devices

摘要

Provided are a computer program product, system, and method for managing write operations to an extent of tracks migrated between storage device. An operation to migrate an extent of tracks from the second storage to the first storage is processed. A determination is made of the tracks in the extent having a write indicator indicating that the track was updated in the second storage since the previous time. The data for the determined tracks is copied from the second storage to free locations in the first storage. An extent object for the extent is updated to indicate the free locations to which the data for the tracks were copied as an active address for the track.

主权项

1. A computer program product for managing data in a first storage and a second storage, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein that executes to perform operations, the operations comprising:
processing an operation to migrate an extent of tracks from the second storage to the first storage; determining the tracks in the extent having a write indicator indicating that the track was updated in the second storage since a previous time; copying the data for the determined tracks from the second storage to free locations in the first storage; and updating an extent object for the extent to indicate the free locations to which the data for the tracks was copied as an active address for the track.