ST8000DM004 vs ST8000NM018B
NAS drive head-to-head - specs, value and live price side by side.
Verdict
For a NAS or any RAID array, the ST8000NM018B is the pick - it's CMR. The ST8000DM004 uses SMR recording, which is not recommended for RAID (single-drive or archival use only).
Value at a glance
Capacity
ST8000DM004
8 TB
ST8000NM018B
8 TB
Noise (idle)
ST8000DM004
22 dB
ST8000NM018B
28 dB
Price history
US · cheapest per day
ST8000DM004 $250
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| ST8000DM004 | ST8000NM018B | |
|---|---|---|
| Capacity | 8 TB | 8 TB |
| Recording tech | SMR | CMR |
| RAID / NAS safe | No | Yes |
| Class | Desktop | Enterprise |
| Spindle speed | 5400 RPM | 7200 RPM |
| Cache | 256 MB | 256 MB |
| Noise (idle) | 22 dB | 28 dB |
| Fill | Air | Air |
| Interface | SATA | SAS |
| Failure rate (AFR) | - | - |
| Price / TB | $32.40 | - |
| Buy | No US price yet | No US price yet |
Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price. Buy links are Amazon affiliate.
ST8000DM004
No Backblaze failure data for this model.
2yr warranty
ST8000NM018B
No Backblaze failure data for this model.
5yr warranty · 550 TB/yr rated · 2,500,000h MTBF