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Seagate

Seagate BarraCuda 6TB ST6000DMZ03

ST6000DMZ03
BarraCudadesktop6TBSATA-6G3.5"
$50.00/TB
$299.99
newIn Stock
This offer: sold by ALL4COMPUTERS-TX ----- SIGNATURE REQUIRED ---- · Amazon says New / Unknown
Price updated
Price accurate as of Nov 2, 2026, 08:19 PM
Buy on Amazon

The Seagate BarraCuda 6TB ST6000DMZ03 is a 6TB SATA-6G HDD in new condition. It is in stock at $299.99 - $50.00/TB.

Where this listing sits: every 6TB hard drive · 6TB SATA drives · Seagate 6TB SATA — each page is the live ranking for that slice of the catalogue.

Same capacity, other options
DriveInterfaceCond$/TBPrice
Seagate SkyHawk 6TB ST6000VX0023SATA-6GRefurb$30.00$179.99Buy on Amazon
Seagate SkyHawk 6TB ST6000VX001SATA-6GRefurb$31.67$189.99Buy on Amazon
Seagate SkyHawk 6TB ST6000VX001SATA-6GRefurb$31.67$189.99Buy on Amazon
WD Red Pro 6TB WD6003FFBXSATA-6GRefurb$33.33$199.99Buy on Amazon

All 6TB drives we track, ranked by cost per terabyte.

Model context

CMR or SMR? What we can and cannot source for this part number

Part of the Seagate line we track.

Quick Verdict

The Seagate BarraCuda 6TB ST6000DMZ03 is a 6TB SATA-6G enterprise drive at $50.00/TB - Verify recording technology before use in RAID. New unit with full manufacturer warranty.

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Specifications

Capacity6TB
Form Factor3.5"
InterfaceSATA-6G
Recording Tech—
RPM5400
Cache256MB
Sector Size—
Workload Rating—
Warranty—
ASINB07H28SY39
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 56% of them (135 of 243). The cheapest we can currently buy is $14.99/TB; the middle of the market is $38.33/TB.

Where the wider market has moved

These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.

Compare against every 6TB drive we track →Cheapest per terabyte, all categories →Category price trends →
How it compares - 6TB SATA-6G
#1Seagate BarraCuda 6TB ST6000DMZ03THIS DRIVE
$36.67/TB
#2Seagate IronWolf 6TB NAS ST6000VN0041
$38.33/TB
#3Seagate SkyHawk 6TB ST6000VX001
$43.33/TB
#4Seagate IronWolf 6TB NAS ST6000VN001
$46.67/TB
#5WD Red Legacy 6TB WD60EFRX
$50.00/TB

Also appears in

SATA hard drives
Price per terabyte
Other pages
Hard drives by capacity
Brands
Head to head

Frequently Asked Questions

Yes. At our last check it was $299.99 ($50.00 per terabyte at its 6TB capacity), sold new under ASIN B07H28SY39. Amazon sets the final price at checkout.

This listing (ST6000DMZ03, ASIN B07H28SY39) carries no renewed, recertified, refurbished or pulled claim in its title, and Amazon reports it as new. On this site that is what "new" means: sold as factory-new.

Use Case Scenarios

🏠
Home & SMB NAS
Building a mid-range NAS for media, backups and file sharing.
✓ Excellent fit
Verify CMR recording before using in RAID. New drives come with full warranty.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
6TB SATA drives are ideal for backup targets. SATA gives maximum $/TB for backup repositories.
🏗️
Virtualization Host Storage
VM images and snapshots on Proxmox, VMware or Hyper-V.
~ Good fit
Suitable for VM storage where workloads are not IOPS-intensive. SATA is fine for single-host VM storage. Consider NVMe cache for latency-sensitive VMs.

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. Establishes baseline for future comparison.
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 3 hours for 6TB. 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 Seagate 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 6TB 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.