I added a new drive to my array. Disk-clear starts and stops writing on the disk after a period of time (short). Currently the disk-clear has been running for 1 day, 8 hours and is only done 102GB (0.7%) of a 14TB drive. Estimated speed says 255.6 MB/sec. It's really confusing. Is the drive back? I don't see errors and smart short test passes without errors.