FTL handles this case by silently moving data around. Cold data retention is REALLY BAD in modern NAND generations using increasingly smaller geometries. Degrad

FTL handles this case by silently moving data around. Cold data retention is REALLY BAD in modern NAND generations using increasingly smaller geometries. Degraded data requires multiple slower reads. Samsung even had to deploy emergency FW update to make this process more aggressive on 840 evo where drive slowed to a crawl reading >1 year old data. https://www.techspot.com/news/60501-samsung-addresses-slow-840-evo-ssd.html https://www.techspot.com/news/60501-samsung-addresses-slow-8...