Reorganization

During online reorganization, the segments within a UOW are read in GN order and written to the reorganization utility private buffer set. This process inserts segments into the reorganization utility private buffer set, eliminating embedded free space.

If all the segments do not fit into the reorganization utility private buffer set (RAP CI plus dependent overflow CIs), then new independent overflow CIs are allocated as needed. When the data in the reorganization utility private buffer set is copied back to the correct location, then the following events occur:

• The newly acquired independent overflow CIs are retained.
• The old segments are deleted.
• Previously allocated independent overflow CIs are freed.