Abstract: Provided are a method, system, and program for managing data. A data request is received to a target track in a relationship, wherein the relationship associates a source track with the target track. A destage request to destage the source track is submitted in response to the data request to the target track, wherein executing the data request to the target track is conditioned on receiving a completion response to the destage request. If the source track is not in cache, then a complete response is returned to the destage request. If the source track was in cache when the relationship was established, then the destage request is added to an Input/Output (I/O) queue for the source track. After the source track is destaged in response to processing the destage request in the I/O queue, the complete response is returned to the destage request.

Abstract: Provided are a method, system, and program for managing data. A scan request is received to remove data from cache included in a relationship after the relationship is established. Processing the scan request is delayed for a delay time in response to receiving the scan request. After the delay time, a determination is made as to whether a condition with respect to the scan request is satisfied. The scan request is processed to remove data from cache that is included in the relationship associated with the scan request if the condition is satisfied.

Abstract: Provided are a method, system, and program for managing data. A data request is received to a target track in a relationship, wherein the relationship associates a source track with the target track. A destage request to destage the source track is submitted in response to the data request to the target track, wherein executing the data request to the target track is conditioned on receiving a completion response to the destage request. If the source track is not in cache, then a complete response is returned to the destage request. If the source track was in cache when the relationship was established, then the destage request is added to an Input/Output (I/O) queue for the source track. After the source track is destaged in response to processing the destage request in the I/O queue, the complete response is returned to the destage request.

Abstract: Provided are a method, system, and program for managing data. A scan request is received to remove data from cache included in a relationship after the relationship is established. Processing the scan request is delayed for a delay time in response to receiving the scan request. After the delay time, a determination is made as to whether a condition with respect to the scan request is satisfied. The scan request is processed to remove data from cache that is included in the relationship associated with the scan request if the condition is satisfied.

Abstract: Provided are a method, system, and program for assigning a timestamp associated with data. Ranges of values consecutive with respect to one another are maintained, wherein one range comprises a current range used to assign current timestamp values. If the current range is at a last value in the range, then a determination is made of whether at least one condition is satisfied with respect to timestamps associated with data having values within a next range to use for timestamp values, wherein the next range may comprise one range preceding or following the current range. If the condition is satisfied, then the next range is used to assign subsequent timestamp values.