There is no gui way of doing this afaik, I’d guess it involves doing some kind of dd > /dev/null

Make sense. I guess leaving it idle for some time should be part of the routine. Then again, there’s a limit to how far one can go. If the routine ended up being “power up the drive and use it actively for 4 weeks at least” it would just become too much.

I wish there was just a simple feature to click and a progress bar showing that just did this without us having to try figuring things out.

That’s really complex, so dd isn’t really reading the whole thing regardless? Gosh!

Yeah, I should probably. An idea I had was to run a manual check of the latest time machine backup against the data partition. This is on a mac.

It’s mac actually, maybe should have mentioned that. Not sure what the best way here is to “read all blocks” of a drive. Maybe a dd command > /dev/null?