OK, clarification: most of our fleet has a LOT of supermicro machines, where it's impossible to identify the drive unless by serial number. There's on UID light, the machines needs to go offline, plus some 10 screws needs to come out to open the chassis, 4 more by drives.

The amount of downtime this would generate for a single machine plus the operation cost doesn't worth the hassle unless the machine loses a significant chunk of drives.