What is Wear_Leveling_Count (SSDs)?

• A. Tracks read error rates.
• B. Tracks NAND wear and endurance consumption.
• C. Tracks encryption status.
• D. Tracks cache efficiency.

Answer: (B)

Wear_Leveling_Count is a metric that indicates how much wear the NAND flash in an SSD has experienced. Flash memory cells can only endure a limited number of program/erase cycles, so wear leveling spreads writes across many cells to balance wear and extend the drive’s life. This count climbs as the drive performs erase/write operations, reflecting the cumulative endurance consumption and giving a sense of how much life the SSD has left. It isn’t about read error rates, encryption status, or cache efficiency—those are tracked by other metrics. In short, it shows the amount of wear the NAND has accumulated and helps gauge remaining endurance.