DatacenterDisk

MDD 18TB SATA Enterprise HDD - Prices

4 drives tracked. From $28.89/TB. Updated about once a day.

Buy or Skip?
✓ Buy if: you want 3% below-average pricing on 18TB MDD drives. These are datacenter pulls - verify SMART data on arrival.
✗ Skip if: you require new-only drives for production RAID or need guaranteed OEM warranty - consider new alternatives.
Buy on Amazon $519.99
Best $/TB
$28.89
Drives
4
Condition
Refurb

At $28.89/TB, MDD 18TB SATA drives are $6.74/TB cheaper than the 18TB SATA category average of $35.63/TB — strong value at this capacity.

MDD 18TB SATA - worth it?

MDD MaxDigitalData 18TB SATA drives ship new with 5-year warranties at aggressive pricing. At $28.89/TB they are often the best $/TB in this capacity.

Condition
Capacity
3 of 3 part numbers (4 offers)
  • $28.89/TB$519.99
    MDD 18TB SATA 7200RPM 5yr Warranty
    MDD18TSATA25672E
    18TB · SATA-6G · 2 offers
    Refurb
    Buy on Amazon
  • $30.00/TB$539.99
    MDD 18TB SATA 6G 7200RPM NAS
    MD18TSATA25672NAS
    18TB · SATA-6G
    Refurb
    Buy on Amazon
  • $30.00/TB$539.99
    MDD 18TB SATA 7200RPM NAS
    MDD18TS25672NAS
    18TB · SATA-6G
    Refurb
    Buy on Amazon

Guides for this capacity: best 18TB hard drive · the HDD price forecast · fill a NAS at today's prices

Other MDD SATA capacities

12TB18TB

Other brands at 18TB SATA

MDDToshibaWD

Frequently Asked Questions

4 in-stock listings out of 4 tracked; the cheapest is the MDD 18TB SATA 7200RPM 5yr Warranty at $519.99 ($28.89/TB). The table on this page is the live ranking.

All 4 in-stock listings are recertified or used, so the warranty comes from the seller rather than the manufacturer; each row shows its own claim.

None of the 4 tracked listings (including the MDD 18TB SATA 7200RPM 5yr Warranty) has a manufacturer-sourced recording value yet, so this page states none - an unsourced drive is never assumed CMR.

Use Case Scenarios

🏠
Home & SMB NAS
Building a high-capacity NAS for media, backups and file sharing.
✓ Excellent fit
Verify CMR recording before using in RAID. Refurb units offer strong value for non-critical NAS.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
18TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
☁️
Object Storage / Cold Data Tier
High-density storage for MinIO, Ceph or Hadoop at scale.
✓ Excellent fit
At 18TB per drive, a 60-bay JBOD delivers 1080TB raw — enough for petabyte-scale object storage.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival
Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Critical for refurb drives — refuse any with reallocated sectors > 0.
MonthlyRun SMART short self-test
smartctl -t short /dev/sdX — takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX — full surface scan, takes 9 hours for 18TB. Any test failure is grounds for immediate replacement.
QuarterlyCheck RAID array health
Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.
AnnuallyVerify drive firmware version
Check MDD support site for firmware updates. Some versions have known bugs affecting integrity.
Every 3-5 yearsPlan proactive replacement
Enterprise HDDs have higher failure rates after year 4-5. At 18TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: Loose SATA data or power cable, failed port, or drive not spinning up.
Fix: Reseat both cables. Try a different port. Listen for spin-up sound. Test with a known-good cable.