DatacenterDisk

WD 16TB SAS Enterprise HDD - Prices

1 WD 16TB SAS hard drives tracked. Prices from $32.81/TB. Updated every 4 hours.

Buy or Skip?
✓ Buy if: you specifically need WD at this capacity for compatibility.
✗ Skip if: you require new-only drives for production RAID or need guaranteed OEM warranty - consider new alternatives.
Buy on Amazon → $525.00
Best $/TB
$32.81
Drives
1
Condition
Refurb

At $32.81/TB, WD 16TB SAS drives are $0.72/TB cheaper than the 16TB SAS category average of $33.53/TB — strong value at this capacity.

WD 16TB SAS - should you buy?

WD Ultrastar 16TB SAS drives are the reliability benchmark for enterprise HDD. Hyperscale datacenter pulls at $32.81/TB offer exceptional value.

$/TB ▲Brand / ModelCapInterfaceTechCacheSectorWtyPriceCond.90DBuy
👑$32.81
WD
Ultrastar 16TB SAS WUH721816AL5205
WUH721816AL5205
Refurb · CMR ·
16TB
SAS-12G
CMR—512e—$525.00REFURBBuy →Details▼

Drive Specifications

WD Ultrastar 16TB SAS WUH721816AL5205
WUH721816AL5205
REFURB
$32.81/TB
$525.00 total
Capacity
16TB
Interface
SAS-12G
Form Factor
3.5"
Recording
CMR
RPM
N/A
Cache
N/A
Sector Size
512e
Workload
—
Warranty
—

Other WD SAS capacities

8TB10TB12TB14TB16TB

Other brands at 16TB SAS

SeagateToshibaWD

Frequently Asked Questions

WD Ultrastar SAS drives have among the lowest annualized failure rates in the industry. Widely deployed in hyperscale datacenters by Google, Microsoft, and Amazon.

Currently only refurbished units are available. These are datacenter pulls with low power-on hours. Verify SMART data on arrival and look for sellers with 90+ day warranty.

RAID 6 is strongly recommended for 16TB SAS drives. At this capacity, RAID 5 rebuild times exceed 24 hours - too risky for a single parity stripe. Use RAID 6 or RAID 60 for arrays of 12+ drives.

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. Refurb units offer strong value for non-critical NAS.
💾
Backup Server / Veeam Target
Dedicated backup storage for Veeam, Commvault, or NetBackup.
✓ Excellent fit
16TB SAS drives are ideal for backup targets. Dual-port SAS suits dual-path backup infrastructure.
☁️
Object Storage / Cold Data Tier
High-density storage for MinIO, Ceph or Hadoop at scale.
✓ Excellent fit
At 16TB per drive, a 60-bay JBOD delivers 960TB 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 8 hours for 16TB. 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 16TB 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.