Flash Storage Endurance in Industrial PCs
Industrial PCs often act as data loggers, writing gigabytes of sensor data per day. Using a standard consumer TLC or QLC drive in this scenario guarantees premature failure. Industrial environments require specialized flash storage.
NAND Flash Types
| Flash Type | Bits per Cell | P/E Cycles (Approx) | Best Use Case |
|---|---|---|---|
| SLC (Single-Level) | 1 | 100,000 | Mission-critical OS drives, extreme endurance |
| MLC (Multi-Level) | 2 | 3,000 - 10,000 | Standard industrial data logging |
| pSLC (Pseudo-SLC) | 1 (using 3D TLC) | 30,000 | High endurance, cost-effective alternative to pure SLC |
| TLC/QLC | 3 / 4 | < 1,000 | Consumer PCs, avoid in industrial environments |
Understanding TBW (Terabytes Written)
Manufacturers rate drive endurance in TBW. A drive rated for 300 TBW can theoretically write 300 terabytes before the flash cells degrade beyond the ECC algorithm's ability to correct errors.