Overview
The Seagate ST20000NM007D is a 20TB 3.5-inch enterprise hard disk drive from the Exos X20 family. Designed for high-capacity storage environments, it combines a SATA 6Gb/s interface, 7200RPM rotational speed, 256MB cache, and Conventional Magnetic Recording (CMR). Its high storage density makes it suitable for data centres, enterprise servers, and large-scale storage systems that require substantial capacity for business-critical data.
Key Features
- 20TB storage capacity: Provides high-density storage for enterprise data and large datasets.
- SATA 6Gb/s interface: Connects to compatible SATA storage controllers and backplanes.
- 7200RPM performance: Supports responsive access for enterprise storage workloads.
- 256MB cache: Helps manage data transfers during read and write operations.
- CMR recording: Conventional Magnetic Recording is suited to a broad range of enterprise storage applications.
- Helium-sealed design: Supports the drive's high-capacity, multi-disk construction.
- PowerChoice and PowerBalance: Seagate technologies designed to help manage power use and performance.
- Enterprise reliability: Rated for a 2.5-million-hour MTBF and a 550TB-per-year workload under specified conditions.
Applications
- Enterprise servers and storage arrays
- Data centre and cloud infrastructure
- High-capacity direct-attached storage systems
- Large-scale data repositories and backup storage
- Business applications requiring high-capacity internal storage
Compatibility
The ST20000NM007D uses a 3.5-inch SATA interface operating at up to 6Gb/s. Before installation, confirm that the host system, storage controller, drive bay, power supply, and operating system support 20TB drives. For RAID or enterprise storage arrays, verify drive and capacity support with the system or controller manufacturer.
Reliability and Data Integrity
The Exos X20 platform incorporates features including SuperParity, SMART monitoring, error-correction capabilities, and RSA 3072 firmware verification. The drive supports hot-plug operation in appropriately designed and configured systems. Actual reliability and performance depend on workload, system configuration, cooling, and operating conditions.
DC Supplies Product Note
Confirm the exact model number before ordering: ST20000NM007D is the 20TB Exos X20 SATA standard model. It is different from the ST20000NM000D self-encrypting SATA model and the SAS-interface variants. Check the host's interface and supported sector format before deployment.
Technical Specifications
| Brand | Seagate |
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| Part Number MPN | ST20000NM007D |
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| Product Type | Enterprise Internal Hard Disk Drive (HDD) |
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| Product Family | Exos X20 |
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| Storage Capacity | 20TB |
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| Form Factor | 3.5-inch |
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| Interface | SATA 6Gb/s |
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| Rotational Speed | 7200RPM |
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| Cache | 256MB |
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| Recording Technology | Conventional Magnetic Recording (CMR) |
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| Sector Format | 512e; FastFormat supports 512e/4Kn configurations |
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| Helium-Sealed Design | Yes |
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| Maximum Sustained Transfer Rate | Up to approximately 270MB/s (manufacturer-rated) |
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| Average Latency | 4.16ms |
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| MTBF | 2,500,000 hours |
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| Annual Workload Rating | 550TB/year |
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| Nonrecoverable Read Errors | 1 sector per 1015 bits read |
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| Operating Temperature | 5°C to 60°C |
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| Dimensions (H × W × D) | 26.1 × 101.85 × 147mm maximum |
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| Weight | Approximately 670g |
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| Limited Warranty | 5 years, subject to Seagate warranty terms and regional availability |
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Frequently Asked Questions
1. What is the capacity of the Seagate ST20000NM007D?
This drive provides 20TB of nominal storage capacity.
2. Is the ST20000NM007D a SATA or SAS drive?
It is a SATA drive with an interface speed of up to 6Gb/s. It is not a SAS model.
3. What is the rotational speed and cache size?
The drive operates at 7200RPM and includes 256MB of cache.
4. Does this model use CMR recording?
Yes. The ST20000NM007D uses Conventional Magnetic Recording (CMR).
5. Is this model self-encrypting?
The ST20000NM007D is the standard SATA model, not the self-encrypting ST20000NM000D variant. Confirm security requirements and the exact model number before purchase.
6. Can it be installed in any desktop or server?
Not necessarily. The system must support a 3.5-inch SATA drive and recognize 20TB capacity. Verify compatibility with the motherboard, controller, backplane, and operating system.
