I seem to have a fairly frequent issue with timemachine sparse bundles failing. The timemachine app automatically detects the failure, and tells me that it needs to create a new backup. In the process, it abandons its former backup files on the Appolo disk.
I've tried to delete them using the finder, but that fails after several hours of attempting to delete the file. Any suggestions on how to free up the space from the abandoned sparsebundles?