I use multiple drives with different sizes in my array.
My spare drive is larger than any other drive in my array.
I don't want to upgrade my parity drive size because if the parity drive fails I don't want to be forced to buy an unnecessary large replacement drive.
If any of my drives fail, I know about the issue that I can not use a replacement drive which is larger than the parity drive.
Which means in case of a data drive failure, I would need to replace 2 d
Beside the intended way, I did actually find another use-case for MAX LBA.
I do buy broken HDDs which only have relocated sectors and no real issues.
Then I do 5 full formatting runs to check if the number stays stable in a 48h stress test.
But one of 3 Disks was actually broken. During the first run, I did discover the place where the sectors get relocated by monitoring the formatting progress and monitoring at which point in time new sector relocations did happen.