Seagate
Seagate ST18000NZ00 IronWolf Pro 18TB NAS HDD
★★★★★
The Seagate IronWolf Pro 18TB delivers enterprise-grade NAS storage with a 300TB/year workload rate and 5-year warranty.
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Overview
Key Features
AgileArray: CMR HDD with AgileArray—NAS-optimized firmware providing exceptional RAID reliability and NAS compatibility during the heaviest of workloads
RV Mitigation: Enjoy consistent performance with built-in rotational vibration sensors providing reliable storage for NAS with little lag or down time
Highest Performance: Easily tackle heavy workloads in multi-user NAS environments
300TB/Year User Workload Rate: Always on, 300TB/year user workload rate with 24x7 accessibility provides peace of mind while supporting the heaviest of multi-user workloads
Five-year limited product warranty protection plan and three year Rescue Data Recovery Services included
Specifications
Brand
Seagate
Model
ST18000NZ00
Capacity
18TB
Interface
SATA 6Gb/s
Spindle Speed
7200 RPM
Cache
256MB
Recording Technology
CMR (Conventional Magnetic Recording)
Workload Rate
300TB/year
Firmware
AgileArray (NAS-optimized)
Vibration Protection
Rotational vibration sensors
Warranty
5-year limited warranty
Data Recovery
3-year Rescue Data Recovery Services included
Pros & Cons
👍 Pros
- 18TB capacity provides massive storage in a single 3.5" drive bay, reducing the number of drives needed
- 300TB/year workload rate handles demanding multi-user and always-on NAS environments
- Built-in rotational vibration sensors maintain performance in multi-bay enclosures with several spinning drives
- AgileArray firmware is purpose-built for RAID reliability and NAS compatibility
- Five-year warranty with three years of Rescue Data Recovery Services included at no extra cost
👎 Cons
- 7200 RPM spindle speed generates more heat and noise compared to 5400 RPM NAS alternatives
- Higher price per drive compared to standard IronWolf (non-Pro) models at the same capacity
- Large 18TB capacity means a single drive failure puts a substantial amount of data at risk without proper RAID redundancy
- SATA 6Gb/s interface may bottleneck in high-performance environments compared to SAS or NVMe solutions
Frequently Asked Questions
What size NAS systems is the IronWolf Pro 18TB designed for?
The IronWolf Pro is designed for multi-bay NAS systems used in business and creative professional environments, supporting up to 24 bays with AgileArray firmware optimized for RAID configurations.
What does the 300TB/year workload rate mean for the IronWolf Pro?
It means the drive is rated to read and write up to 300 terabytes of data per year—significantly higher than standard desktop drives—making it suitable for always-on, multi-user NAS environments with heavy data throughput.
How do the rotational vibration sensors help in a multi-drive NAS?
Built-in RV sensors detect vibration caused by neighboring drives spinning in the same enclosure and compensate in real time, maintaining consistent read/write performance and reducing errors in multi-bay setups.
What is included with the Seagate Rescue Data Recovery Services?
The IronWolf Pro 18TB includes three years of Rescue Data Recovery Services, which covers in-lab recovery from mechanical failure, accidental damage, and natural disasters, with a recovery rate that Seagate reports at over 90%.
Does the IronWolf Pro 18TB use CMR or SMR recording technology?
The IronWolf Pro 18TB uses Conventional Magnetic Recording (CMR), which provides consistent write performance and is the preferred recording method for NAS and RAID applications.
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