I recently got 16TB of Samsung SSDs, all 850 Pros. 3x2TB, 5x1TB and 10x512GB. All are retired from enterprise service.
I've done firmware updates and checked their BTWs, the 1TB drives are 'fine' the worst have like 60 TBW (Out of a warrantied max of 300TBW). However two of the 2TB drives are at about 440TBW of a warrantied max of 450TBW. These two are literally 10TB of writes from exceeding their TBW.
So the question is, how far can I likely exceed these limits? I'm thinking of using the two long most used up drives in RAID0 for LANCache for fast reads. Being just a cache the data on the drives is entirely expendable. (And I'll probably set up a weekly backup to mechanical storage to make restoration easy if a drive does fail) But does anyone have much experience with actually going past the TBW on Samsung drives?