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WD

WD Ultrastar 14TB SAS

Ultrastar 14TB SAS
Ultrastar HC550nearlineCMR14TBSAS-12G3.5"
$42.46/TB
$594.45
newIn Stock
Price updated
Aug 4, 2026, 05:00 PM
Buy on Amazon →
Quick Verdict

The WD Ultrastar 14TB SAS is a 14TB SAS-12G enterprise drive at $42.46/TB - CMR recording makes it safe for all RAID levels and NAS deployments. New unit with full manufacturer warranty.

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Specifications

Capacity14TB
Form Factor3.5"
InterfaceSAS-12G
Recording TechCMR
RPM—
Cache—
Sector Size—
Workload Rating—
Warranty—
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How it compares - 14TB SAS-12G
#1WD Ultrastar 14TB SAS
$23.57/TB
#2WD Ultrastar 14TB SAS WUH721414AL5204
$42.25/TB
#3WD Ultrastar 14TB SASTHIS DRIVE
$42.46/TB

Compare to similar 14TB SAS-12G drives

WD
Ultrastar 14TB SAS
$23.57/TB
$329.98
REFURB
WD
Ultrastar 14TB SAS WUH721414AL5204
$42.25/TB
$591.45
new

Frequently Asked Questions

Yes. The Ultrastar 14TB SAS uses CMR recording which is fully compatible with all RAID levels.

Warranty varies by seller. Check the Amazon listing for current warranty terms.

Compatible with any server or workstation equipped with a SAS HBA or SAS backplane. Tested with Dell PowerEdge, HPE ProLiant, Supermicro and IBM System x platforms.

Use Case Scenarios

🏠
Home & SMB NAS
Building a high-capacity 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
14TB 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 7 hours for 14TB. 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 WD 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 14TB 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.