Partial volume reorganization to increase data availability

A computer program product for partially reorganizing a volume, the computer program product comprising a computer-readable medium having computer-usable program code embodied therein, the computer-usable program code comprising:

• computer-usable program code to logically divide a volume into a plurality of regions;
• computer-usable program code to enable a computing system to perform a data reorganization operation on a particular region of the plurality of regions, while enabling I/O to continue to other regions of the plurality of regions;
• computer-usable program code to, in the event a request for a data set allocation is received for the particular region while the data reorganization operation is taking place, automatically perform the data set allocation within the other regions;
• and
• computer-usable program code to, when the data reorganization operation is complete, automatically move the data set allocation from the other regions to the particular region.

A system for partially reorganizing a volume, the system comprising:

• at least one processor;
• at least one memory device coupled to the at least one processor and storing instructions for execution on the at least one processor, the instructions causing the at least one processor to;
• logically divide a volume into a plurality of regions;
• enable a computing system to perform a data reorganization operation on a particular region of the plurality of regions, while enabling I/O to continue to other regions of the plurality of regions;
• in the event a request for a data set allocation is received for the particular region while the data reorganization operation is taking place, automatically perform the data set allocation within the other regions;
• and
• when the data reorganization operation is complete, automatically move the data set allocation from the other regions to the particular region.