Were still running R380’s. Great cards.
Built a new server and used a R680 though.
Both our chassis were upgraded to 16Bay 6gig SAS expanders.
The 8bay EnhanceTech running off a R380 in a suite after 4 years still running strong. Hitachi Ultrastars in all chassis.
In 16 bays I tend to run Raid6 with a hot spare.
Like what was suggested look for bad blocks and replace those if worried.
I tend to let things run their course and drive upgrade are normally for data size req ie going from 1TB to 2 or 4TB drives way before drives die.. normally need more storage every 24 months.
It’s easier to let them run their course now though as we can just buy another chassis and expand.