Lazy solution here that has worked fine forever through a complete hardware failure and burglary. Scratch disk inside desktop. External disk kept in house. External disk kept off site. All external disks are Samsung T7 Shield.
Robocopy /MIR daily to scratch or after I’ve done something significant. Weekly to external disk. Swap external disk offsite every 1 month.
And make sure to use at least a different batch, or better a different model. Same batch or same model tend to fail at the same time (usually if you need to restore data and the disk is under heavy load).
Robocopy /MIR daily to scratch or after I’ve done something significant. Weekly to external disk. Swap external disk offsite every 1 month.