Seagate IronWolf Pro ST18000NT001 18TB NAS Hard Drive – 3.5" Internal SATA CMR

The Seagate IronWolf Pro ST18000NT001 is engineered for high-demand NAS environments, delivering reliable, 24x7 performance in multi-bay, multi-user storage deployments. With a commanding 18TB capacity and Enterprise-class features, this drive is built to handle the toughest workloads in small business and professional NAS setups. It combines Seagate’s AgileArray technology with rotational vibration sensing, optimized power management, and a robust 5-year warranty, ensuring long-term reliability for data-intensive applications, media streaming, backups, and virtualization in a single NAS enclosure or multi-device array.

• Optimized for NAS workloads with AgileArray technology — designed for RAID optimization, dual-plane balancing, and consistent performance in multi-drive environments. This means higher reliability for multi-user access, smoother data transfers, and improved drive health monitoring in active NAS systems.
• Massive 18TB capacity for scalable storage growth — ideal for expanding media libraries, archival backups, surveillance footage, and business archives. With this capacity, you can consolidate large datasets in a single drive, reducing the footprint of your NAS rack and simplifying management.
• High workload capability and data protection — IronWolf Pro drives are engineered to sustain demanding 24x7 NAS workloads with a workload rating that supports constant access, write-intensive tasks, and concurrent users. The combination of CMR recording technology and advanced error recovery helps preserve data integrity under heavy use.
• Rotational Vibration (RV) sensors and multi-drive optimization — specially designed for multi-bay NAS deployments, RV sensors detect movement and reduce vibration-related errors, keeping performance steady even as you expand your storage array. This makes it a reliable choice for NAS devices with several drives running simultaneously.
• Durable, enterprise-grade reliability — built to endure continuous operation, with a 5-year limited warranty and Seagate’s reputation for quality. The IronWolf Pro line is purpose-built for NAS environments, offering long-term dependability, lower total cost of ownership, and reduced maintenance interruptions in business applications.

Technical Details of Seagate IronWolf Pro ST18000NT001 18 TB

• Model: ST18000NT001
• Capacity: 18 TB
• Recording technology: Conventional Magnetic Recording (CMR)
• Interface: SATA 6Gb/s (SATA/600)
• Form factor: 3.5-inch internal drive
• Rotation speed: 7200 RPM
• Cache: High-cache architecture to boost burst transfers and responsiveness in NAS workloads
• NAS optimization: AgileArray with dual-plane balancing and RAID-optimized operations
• Rotational Vibration sensors: Yes, for improved stability in multi-drive arrays
• NASware 3.0: Enhanced compatibility and performance in modern NAS systems
• Workload rating: Up to 300 TB/year (designed for sustained 24x7 NAS operation)
• Warranty: 5-year limited warranty

How to install Seagate IronWolf Pro ST18000NT001

• Prepare your NAS or 3rd-party NAS chassis by ensuring it supports 3.5-inch SATA hard drives and is compatible with IronWolf Pro drives. Check the device’s drive bays, hot-swap trays, and RAID configuration options before starting.
• Power down the NAS and disconnect it from the power source. Open the drive bay cover and remove any existing drive if you are upgrading a drive or adding a new slot to the array.
• Insert the IronWolf Pro ST18000NT001 into a compatible hot-swap bay or drive tray. Secure the drive with screws or using the NAS’s tray locking mechanism, depending on the enclosure design.
• Connect the SATA data cable and power cable to the drive, ensuring a firm connection. Re-insert the drive tray back into the NAS bay and reseat any removed components.
• Power on the NAS and access the management interface. The new drive should be detected automatically. If you are expanding an existing RAID, follow the RAID expansion or rebuild procedure within the NAS management software. If you are creating a new volume, configure the array, select the appropriate RAID level, and format the drive for use.
• Run a health check and SMART status review after the rebuild or initialization. Consider enabling alerting and health monitoring to receive proactive notifications about drive status, temperature, and performance metrics.
• Plan regular backups and ensure data redundancy across drives in the array. For best results, keep multiple copies of critical data and consider a cloud or off-site backup strategy as part of a comprehensive data protection plan.

Frequently asked questions

• Is the Seagate IronWolf Pro ST18000NT001 suitable for NAS use? Yes. It is specifically designed for 24x7 NAS environments, offering RAID-optimized performance, robust reliability, and features like RV sensors to maintain stability in multi-drive arrays.
• What is the warranty on this drive? This model carries a 5-year limited warranty, reflecting Seagate’s confidence in its long-term reliability for NAS workloads.
• Does this drive use CMR or SMR recording technology? This drive uses Conventional Magnetic Recording (CMR), which typically provides better performance in NAS and multi-user environments than SMR for write-intensive tasks.
• What kind of performance can I expect in a multi-drive NAS? While exact performance varies by NAS model and RAID configuration, IronWolf Pro drives are engineered with AgileArray and RV sensors to deliver stable, reliable performance under sustained workloads, making them well-suited for multi-user access and high data throughput in multi-bay NAS setups.
• Can I mix IronWolf Pro drives with standard IronWolf drives in the same NAS? In many cases you can mix drives, but for optimal performance and warranty coverage, consult your NAS manufacturer’s guidance and Seagate’s compatibility notes. IronWolf Pro drives are designed for high-demand NAS use and may be best used in arrays that leverage their higher workload rating and features.