6406: Source images have not been deleted.

Images that were migrated to another volume were not deleted from the source volume.

Try the following:

• Check whether the source volume is on read-only or write-protected media.
• If it is, then you will either need to move the volume to read-write media or remove write-protection.
• If the volume is not on read-only or write-protected media, then you should check the volume's files to make sure that they have not been assigned read-only status. If the volume's files are read-only, then you should toggle their status to read-writable.

Note:  If you decide to move the volume, make sure to update the volume's fixed and/or removable path(s). After updating the volume's paths, you should make sure that images, text, and electronic documents belonging to the volume can still be viewed. Finally, you may need to remove read-only status from the volume files.