Method, system and program for managing asynchronous cache scans

A computer storage system comprising:

• means for establishing a first point-in-time logical copy relationship between a source and a first target relating to a first extent of data;
• means for establishing a second point-in-time logical copy relationship between the source and a second target relating to a second extent of data;
• means for receiving a first cache scan request related to the first point-in-time logical copy relationship to remove the first extent of data from a cache;
• means for receiving a second cache scan request related to the second point-in-time logical copy relationship to remove the second extent of data from the cache;
• means for processing the first cache scan request;
• and
• means for returning the successful completion of the first cache scan request and the second cache scan request upon the processing of the first cache scan request.

An article of manufacture for use in programming a storage device to managing data, the article of manufacture comprising instructions for:

• establishing a first point-in-time logical copy relationship between a source and a first target relating to a first extent of data;
• establishing a second point-in-time logical copy relationship between the source and a second target relating to a second extent of data;
• receiving a first cache scan request related to the first point-in-time logical copy relationship to remove the first extent of data from a cache;
• receiving a second cache scan request related to the second point-in-time logical copy relationship to remove the second extent of data from the cache;
• processing the first cache scan request;
• and
• returning the successful completion of the first cache scan request and the second cache scan request upon the processing of the first cache scan request.

A method of deploying computing infrastructure, comprising integrating computer readable code into a computing system, wherein the code in combination with the computing system is capable of performing the following:

• establishing a first point-in-time logical copy relationship between a source and a first target relating to a first extent of data;
• establishing a second point-in-time logical copy relationship between the source and a second target relating to a second extent of data;
• receiving a first cache scan request related to the first point-in-time logical copy relationship to remove the first extent of data from a cache;
• receiving a second cache scan request related to the second point-in-time logical copy relationship to remove the second extent of data from the cache;
• processing the first cache scan request;
• and
• returning the successful completion of the first cache scan request and the second cache scan request upon the processing of the first cache scan request.