DatacenterDisk

Seagate 4TB SAS Enterprise HDD - Prices

6 Seagate 4TB SAS hard drives tracked. Prices from $17.25/TB. Updated every 4 hours.

Buy or Skip?
✓ Buy if: you want 39% below-average pricing on 4TB Seagate drives. New with manufacturer-year warranty.
✗ Skip if: you need higher workload rating than 550TB/year.
Buy on Amazon → $69.00
Best $/TB
$17.25
Drives
6
Condition
New + Refurb

At $17.25/TB, Seagate 4TB SAS drives are $5.34/TB cheaper than the 4TB SAS category average of $22.59/TB — strong value at this capacity.

Seagate 4TB SAS - should you buy?

Seagate 4TB SAS drives include the Exos X and Enterprise Capacity series, rated 550TB/year for 24/7 datacenter operation. Starting at $17.25/TB.

$/TB ▲Brand / ModelCapInterfaceTechCacheSectorWtyPriceCond.90DBuy
👑$17.25
~ Fair
Seagate
Constellation ES 4TB SAS 6G
ST4000NM0023
CMR ·
4TB
SAS-6G
7,200 RPM
CMR128MB512e—$69.00new▲Buy →Details▼
$18.00
↓ Good
Seagate
Enterprise Capacity 4TB SAS 12G 512n
ST4000NM0025
Refurb · CMR · 5yr
4TB
SAS-12G
7,200 RPM
CMR128MB512n5yr$72.00REFURB▲Buy →Details▼
$18.75
~ Fair
Seagate
Constellation ES 4TB SAS 6G
ST4000NM0023
Refurb · CMR ·
4TB
SAS-6G
7,200 RPM
CMR128MB512e—$75.00REFURB▲Buy →Details▼
$28.32
↓ Good
Seagate
Constellation ES 4TB SAS 6G
ST4000NM0023
Refurb · CMR ·
4TB
SAS-6G
7,200 RPM
CMR128MB512e—$113.27REFURB▼Buy →Details▼
$37.53
↑ High
Seagate
Enterprise Capacity 4TB SAS 12G 512n
ST4000NM0025
CMR · 5yr
4TB
SAS-12G
7,200 RPM
CMR128MB512n5yr$150.13new▲Buy →Details▼
$49.75
↑ High
Seagate
Constellation ES 4TB SAS 6G
ST4000NM0023
CMR ·
4TB
SAS-6G
7,200 RPM
CMR128MB512e—$199.00new▼Buy →Details▼

Other Seagate SAS capacities

1TB1.2TB3TB4TB6TB8TB10TB12TB16TB

Other brands at 4TB SAS

DellHGSTHPSeagate

Frequently Asked Questions

Seagate enterprise SAS drives (Exos, Enterprise Capacity) are rated for 2.5M hours MTBF and 550TB/year workload. Standard choice for Dell, HP, and Supermicro servers.

Both are available. Refurbished Seagate SAS drives are typically low-hours datacenter pulls - excellent value for non-critical storage. New drives with full warranty are recommended for production RAID arrays.

At 4TB, RAID 1 mirrors or RAID 5 are typical. These smaller capacities rebuild quickly, reducing the window of vulnerability.

Use Case Scenarios

🏠
Home & SMB NAS
Building a mid-range NAS for media, backups and file sharing.
✓ Excellent fit
CMR recording is RAID-safe and fully compatible with Synology, QNAP, TrueNAS and UnRAID. New drives come with full warranty.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
4TB SAS drives are ideal for backup targets. Dual-port SAS suits dual-path backup infrastructure.
🏗️
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. SAS dual-port suits HA cluster shared 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 2 hours for 4TB. 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 4TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: HBA not initialized, SAS expander issue, cable fault, or incompatible controller.
Fix: Verify HBA firmware. Check SAS topology with sas2ircu or StorCLI. Test with known-good cable. Confirm drive is SAS not SATA.