Seagate Exos X12 12TB SAS 12GBs Hard Disk

Seagate Exos X12 12TB SAS 12GBs Hard Disk

Category : Seagate Hardisk
Brand : Seagate
Model : ST12000NM0027


Seagate manufactures hard drives that specifically address the needs of the hyperscale storage market. As the flagship of the Seagate® X class, the Exos™ X12 enterprise hard drive is the highest-capacity hard drive in the fleet. 

Scales to Meet Your Growing Capacity Needs

Seagate Exos X12 enterprise hard drives offer the highest rack space efficiency—up to 10PB of data in a single 42U rack. Enhanced caching makes it perfect for Big Data applications, providing the fastest hard drive data transfers in the datasphere. Hyperscale SATA models are tuned for large data transfers, providing low latency. You can easily customize your bulk storage requirements with innovative technology advancements (PowerBalance™, PowerChoice™ and RAID Rebuild®). Exos X12 drives help provide low data center TCO, and are architected to offer low power and weight. Simplified infrastructure management is possible with FastFormat™ advanced format feature (4Kn and 512e). Advanced Write Caching helps ensure rapid response rates with a 20% boost in random write performance.1 

Innovative Helium Design 

The Exos X12 hard drive is built on a rock-solid sealed-drive design. A wrought-aluminum base and a helium sealed-drive design with no porosity and uniform density are designed with superior material and wide-weld design for a more robust, hermetically sealed-drive enclosure. Exos X12 hard drives incorporate digital environmental sensors for measuring pressure in the drive, helping to ensure high reliability, performance and quality. 

Enhanced Enterprise Reliability, Data Protection and Security 

Seagate is the industry leader in data-at-rest protection with the broadest offering of technologies to help ensure reliable, trusted products. Seagate Secure™ models provide hardware-based security to help protect data-at-rest. With Instant Secure Erase, drive retirement is safe, affordable, fast and easy. Seagate Secure models meet the NIST 800-88 media sanitization specification and support the Trusted Computer Group (TCG) standard.2 The X class Exos X12 hard drive is a proven, enterprise-class hard drive with maximum reliability backed by a 2.5 million hour MTBF.

Best-Fit Applications

  • Hyperscale applications/cloud data centers
  • Massive scale-out data centers
  • Big Data applications
  • High-capacity density RAID storage
  • Mainstream enterprise external storage arrays
  • Distributed file systems, including Hadoop and Ceph
  • Enterprise backup and restore—D2D, virtual tape
  • Centralized surveillance


  • Capacity : 12TB
  • SATA Standard Model (512e) : —
  • SATA SED Model (512e) : —
  • SAS Standard Model FastFormat™ (512e/4Kn)1 : ST12000NM0027
  • SAS SED Model FastFormat (512e/4Kn)1,2 : ST12000NM0037

Features : 

  • Superior Helium Sealed-Drive Design With Wide Weld : Yes
  • Digital Sensors for Helium Pressure : Yes
  • Protection Information (T10 DIF) : Yes
  • SuperParity : Yes
  • PowerChoice™/PowerBalance™ Technology : Yes
  • Seagate RAID Rebuild™ : Yes
  • Low Halogen/Hot-Plug Support3 : Yes
  • Cache, Multisegmented (MB) : 256
  • Organic Solderability Preservative : Yes
  • Secure Download and Diagnostics (SD&D) RSA 2048 signed firmware : Yes

Reliability/Data Integrity : 

  • Mean Time Between Failures (MTBF, hours) : 2,500,000
  • Reliability Rating @ Full 24×7 Operation (AFR) : 0.35%
  • Nonrecoverable Read Errors per Bits Read : 1 sector per 10E15
  • Power-On Hours per Year (24×7) : 8760
  • 512e Sector Size (Bytes per Sector) : 512, 520, 528
  • 4Kn Sector Size (Bytes per Sector) : 4096, 4160, 4224
  • Limited Warranty (years) : 5

Performance : 

  • Spindle Speed (RPM) : 7200
  • Interface Access Speed (Gb/s) : 12.0, 6.0, 3.0
  • Max. Sustained Transfer Rate OD (MB/s,MiB/s) : Up to 261, 249
  • Random Read/Write 4K QD16 WCD (IOPS) : 170/400
  • Interface Ports : Dual
  • Rotation Vibration @ 20-1500 Hz (rad/sec²) : 12.5

Power Consumption : 

  • Idle A (W) Average : 5.4W
  • Average Latency (ms) : 4.16
  • Operating Power4 : 9.3
  • Power Supply Requirements : +12 V and +5 V'

Environmental : 

  • Temperature, Operating (°C) : 5°C – 60°C
  • Vibration, Nonoperating:10Hz to 500Hz (Grms) : 2.27
  • Shock, Operating 2ms (Read/Write) (Gs) : 70
  • Shock, Nonoperating 2ms (GS) : 250

Physical : 

  • Height (mm/in, max) : 26.11mm/1.028in
  • Width (mm/in, max) : 101.85mm/4.010in
  • Depth (mm/in, max) : 147.0mm/5.787in
  • Weight (g/lb) : 705g/1.554lb
  • Carton Unit Quantity : 20
  • Cartons per Pallet/Cartons per Layer : 40 / 8