Pre-allocating cache resources for a range of tracks in anticipation of access requests to the range of tracks

A system for managing access requests from a host to tracks in storage;

• comprising:
• a processor;
• a cache;
• and
• a computer readable storage medium having computer readable program code embodied therein that is executable to perform operations, the operations comprising:
• accessing cache resources for the cache for tracks in a range of tracks in advance of processing write requests to the range of tracks;
• processing a write request of the write requests to a target track indicating a subset of tracks of the range of tracks;
• determining whether there is indication that cache resources have been allocated for the subset of tracks;
• and
• accessing the cache resources for tracks in the subset of tracks in anticipation of the write request to the subset of tracks in response to determining that that there is the indication that the cache have been allocated for the subset of tracks.

A method for managing access requests from a host to tracks in storage cached in a cache, comprising:

• accessing cache resources for the cache for tracks in a range of tracks in advance of processing write requests to the range of tracks;
• processing a write request of the write requests to a target track indicating a subset of tracks of the range of tracks;
• determining whether there is indication that cache resources have been allocated for the subset of tracks;
• and
• accessing the cache resources for tracks in the subset of tracks in anticipation of the write request to the subset of tracks in response to determining that there is indication that the cache resources have been allocated for the subset of tracks.