Seagate Exos X18 ST12000NM004J 12TB SAS Internal Hard Drive

Designed for hyperscale environments, the Seagate Exos X18 ST12000NM004J 12TB SAS internal hard drive delivers unmatched capacity, reliability, and performance for data centers, cloud storage, and enterprise workloads. As the flagship of the Seagate X class, Exos X18 represents the pinnacle of high-capacity hard drives, offering maximum storage density to optimize rack space and total cost of ownership. Built for continuous operation in demanding ecosystems, this drive excels at handling large sequential transfers, mixed read/write workloads, and the sustained demand of modern enterprise applications. Whether you’re expanding cold storage, supporting virtualized environments, or powering backup and archival systems, Exos X18 combines enterprise-grade resilience with efficient design, helping businesses scale their storage infrastructure without compromising uptime or performance.

• High-capacity 12TB internal drive engineered for hyperscale and data-center workloads, enabling greater rack density and lower footprint per terabyte.
• Enterprise-class reliability and endurance designed for 24x7 operation, with robust error correction, data protection features, and long-term data integrity under heavy I/O stress.
• 12Gb/s SAS interface delivers fast, reliable connectivity to enterprise storage controllers, optimized for high-throughput, low-latency access in server racks and JBOD configurations.
• 3.5-inch form factor tailored for enterprise arrays and storage enclosures, with Seagate engineering designed to maximize uptime, cooling efficiency, and serviceability in data centers.
• Specialized for scalable cloud and hyperscale architectures, combining maximum capacity with energy-conscious operation to improve overall data-center efficiency and TCO.

Technical Details of Seagate Exos X18 ST12000NM004J 12TB Hard Drive

• Model: ST12000NM004J
• Capacity: 12 TB
• Interface: SAS 12Gb/s
• Form Factor: 3.5-inch Enterprise Internal Hard Drive
• Rotation Speed: 7200 RPM
• Cache: 256 MB
• Drive Type: Internal HDD for data-center environments

how to install Seagate Exos X18 ST12000NM004J 12TB Hard Drive

• Verify compatibility: Ensure your server, storage array, or JBOD enclosure supports 3.5-inch SAS enterprise drives and has a 12Gb/s SAS controller available.
• Power down and prepare: Safely power down the host system and follow proper ESD precautions before handling the drive.
• Remove the drive tray: If using a tray or sled, remove the existing drive or insert the Exos X18 into an available slot designed for hot-swappable enterprise drives.
• Connect the interface: Attach the SAS data and power cables to the drive’s connectors, ensuring a secure, clean connection to the storage controller or backplane.
• Secure and power on: Mount the drive into the slot, secure the screws or latching mechanism, power up the system, and verify that the drive is detected by the controller and operating within specification.

Frequently asked questions

• What is the Seagate Exos X18 ST12000NM004J? It is a 12TB enterprise internal hard drive in the Seagate Exos X class, designed for hyperscale cloud storage, data centers, and heavy-I/O workloads, using a SAS 12Gb/s interface for reliable, high-throughput performance.
• What environments is this drive best suited for? It is ideal for data-center storage arrays, server-based storage, virtualization platforms, databases, backup and archive systems, and other workloads that require large capacity, sustained throughput, and high reliability.
• What interface does it use and is it compatible with SATA controllers? It uses a SAS 12Gb/s interface, which is not compatible with standard SATA controllers. It should be connected to a SAS-capable host bus adapter (HBA) or storage controller designed for enterprise SAS drives.
• How does Exos X18 help with rack space and efficiency? With its high-capacity 12TB design, you can store more data per drive, reducing the number of spindles and drive bays required for a given workload, which translates to improved rack density and potentially lower power and cooling costs.
• What kind of workloads benefit most from Exos X18? Heavy sequential throughput tasks, large-scale backup and archival operations, cold and warm storage workflows, virtualization data pools, and any environment that demands robust 24x7 operation and long-term data integrity.