2020-12-29T13:30:17+00:00 Zend_Feed_Writer https://www.augwessex.org.uk/discussions/view/1925 AUGW info@augwessex.org.uk https://www.augwessex.org.uk/ 2020-12-28T15:12:23+00:00 https://www.augwessex.org.uk/discussions/view/1925#9537 Roy Rainford info@augwessex.org.uk https://www.augwessex.org.uk/ For my MacBook Pro I have an external drive containing folders with selections of images and documents (650 GB on the drive) which I want to duplicate on a new external drive, as extra safety. (Belts & Braces). Is the process of duplicating simply to have both external drive icons on the MBP desktop and drag & drop one icon to the other or should it be done via SuperDuper? I want to retain the same folder arrangement on both drives. 2020-12-28T15:29:28+00:00 https://www.augwessex.org.uk/discussions/view/1925#9538 Douglas Cheney info@augwessex.org.uk https://www.augwessex.org.uk/ Connect both drives to the MacBook and drag the files over 2020-12-28T16:10:54+00:00 https://www.augwessex.org.uk/discussions/view/1925#9539 Roy Rainford info@augwessex.org.uk https://www.augwessex.org.uk/ Thanks Doug. Do I have to drag the files over individually? Will the total transfer not be done by drag & drop of the drive icons? 2020-12-28T17:19:27+00:00 https://www.augwessex.org.uk/discussions/view/1925#9540 Douglas Cheney info@augwessex.org.uk https://www.augwessex.org.uk/ I would drag each individual folder over 2020-12-29T12:18:06+00:00 https://www.augwessex.org.uk/discussions/view/1925#9543 Derek Wright info@augwessex.org.uk https://www.augwessex.org.uk/ If there is a fault in the data on the first copy you will transmit the fault to the second backup drive. If you have omitted to copy some data from your master drive you will never have a backup of the uncopied data - so my practice is to have 100% copies of all data both program and data on all back up drives. This should then give you the ability to boot off either of the backup drives (subject to the vagaries of the new operating systems) If you use Carbon Copy Cloner rather SuperDuper you can run the two sets of backups at the same time. 2020-12-29T13:30:17+00:00 https://www.augwessex.org.uk/discussions/view/1925#9544 Roy Rainford info@augwessex.org.uk https://www.augwessex.org.uk/ Thank you Derek. "Food for Thought" there! In this case I am just copying a selection of images and documents from my iMac, as an archival store before disposing of the iMac. These externals are not intended as bootable drives. I have another external drive which is a 100% copy of the MBP HD and bootable.