Hard drive maintenance

[Stanford]

Data Doctors has a review of hard drive maintenance including a reminder of how to check status of your drives.

[Alan J. Raul]

Here are the links from Stan's PDF

Data Doctors The 3-2-1 Backup Philosophy
https://www.datadoctors.com/media/tips/2358-The-3-2-1-Backup-Philosophy/
 
What exactly does SMART do on my computer?
https://www.datadoctors.com/help/question/22384-SMART-Computer-Checkup/

13 Best Free Hard Drive Testing Programs
https://www.lifewire.com/free-hard-drive-testing-programs-2626183

Free up drive space in Windows
https://support.microsoft.com/en-us/windows/free-up-drive-space-in-windows-85529ccb-c365-490d-b548-831022bc9b32#:~:text=How%20will%20I%20know%20how,the%20Devices%20and%20drives%20section.

See used and available storage space on your Mac
https://support.apple.com/guide/mac-help/storage-space-mac-syspf9b375b9/mac