Detailed Specifications
Seagate ST4000NM0025 - 4TB Enterprise SAS 12 Gb/s Hard Drive
Overview
The Seagate ST4000NM0025 is a 4 TB enterprise-class internal hard drive designed for data centers, storage servers, and multi-drive RAID arrays where high capacity and sustained throughput are required. It targets IT engineers and storage architects deploying bulk storage solutions with reliability demands for 24 × 7 operation.
This drive supports a 12 Gb/s SAS interface with a 3.5-inch form factor and a 7200 RPM spindle speed, delivering reliable random and sequential performance across heavy workloads. Its 128 MB cache helps maintain consistent data streams in dense storage environments.
Built for nearline enterprise applications, it integrates easily into replicated and RAID bulk storage servers and SANs. Its design meets high workload ratings and incorporates vibration tolerance for stable multi-drive performance.
Use this model in systems with SAS controllers and backplanes designed for enterprise storage. It is not intended as a consumer or desktop SATA drive; proper SAS support is required for full functionality.
Typical Deployment Scenarios
- Bulk data archive storage in SAS-based SAN environments
- High-capacity RAID arrays for structured and unstructured data
- Storage expansion in enterprise servers or compute clusters
- Backup targets in virtualized data center infrastructures
Key Features
- 4 TB SAS enterprise capacity storage
- 12 Gb/s SAS interface for high throughput
- 7200 RPM spindle speed for sustained performance
- 128 MB cache for efficient data streaming
- Designed for 24 × 7 nearline workloads
Technical Specifications
| Specification | Value |
|---|
| Brand | Seagate |
| Part Number | ST4000NM0025 |
| Product Type | Enterprise Internal Hard Drive |
| Storage Capacity | 4 TB |
| Form Factor | 3.5″ |
| Interface | 12 Gb/s SAS |
| Spindle Speed | 7200 RPM |
| Cache / Buffer | 128 MB |
| Sector Size | 512n |
| Workload Rating | Up to ~550 TB/year |
| MTBF | ~2,000,000 hours |
| Operating Power (typical) | ~7.74 W |
| Idle Power (typical) | ~6.52 W |
| Weight | ~0.68 kg |
Compatibility & Ecosystem
- Designed for SAS storage controllers and backplanes
- Integrates into standard 3.5″ hot-swap drive bays
- Suitable for RAID 0/1/5/6/10 arrays with enterprise-grade controllers
- Works with modern SAN and NAS solutions that support SAS drives
Intent & Usage Summary
Often deployed as a high-capacity bulk storage drive in enterprise SAN and server arrays, the ST4000NM0025 is commonly paired with SAS-enabled RAID controllers in data centers handling heavy read/write workloads. Its sustained throughput and workload rating make it suitable for nearline storage, archival, and tiered capacity tiers. Avoid using this drive in systems without SAS support, as SATA-only backplanes will not provide full operation.
