Seagate ST20000NM007D 20TB 3.5 Inch Exos X20 SATA Enterprise Helium HDD
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  • Part number:ST20000NM007D
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Seagate ST20000NM007D Exos X20 20TB 7200RPM SATA 6Gb/s 3.5" Helium CMR Enterprise Hard Drive, 256MB Cache Data Center HDD

Keywords

ST20000NM007D, Seagate Exos X20, 20TB enterprise HDD, 3.5 inch helium hard drive, SATA 6Gb/s HDD, 7.2K CMR hard disk, 256MB cache, data center storage, NAS storage, cold data archive HDD

Description

The Seagate ST20000NM007D belongs to Seagate Exos X20 enterprise helium hard drive series, a high-capacity 3.5-inch LFF mechanical HDD customized for 7×24 data center continuous operation. Adopting hermetic helium sealed design, 10-disk CMR vertical magnetic recording technology, 7200RPM rotational speed and 256MB large cache. With standard SATA 6Gb/s interface, up to 255MB/s sustained read speed, 550TB annual workload and 2,500,000 hours MTBF. Featuring enterprise anti-vibration, low power consumption and stable rewrite performance, it avoids SMR write limitation, perfectly suitable for server RAID array, NAS/SAN storage, big data warehouse, video surveillance and long-term cold data archiving scenarios.

Key Features

  • Genuine Seagate enterprise model ST20000NM007D, official Exos X20 professional data center HDD series
  • 3.5-inch standard LFF chassis, helium hermetic sealing design, lower internal resistance, less wear and lower power consumption
  • Pure CMR conventional magnetic recording, no SMR performance attenuation, support frequent overwrite and RAID group deployment
  • 7200RPM high spindle speed + 256MB large cache, stable sequential read speed up to 255MB/s
  • Standard SATA III 6Gb/s interface, backward compatible with SATA 3Gb/s, widely compatible with mainstream server RAID and storage enclosures
  • 10-disk 20-head internal structure, single disk 2TB capacity, optimized high-density storage layout
  • Enterprise-grade 24/7 non-stop running certification, rated 550TB annual written workload for cyclic data center operation
  • Ultra-high reliability with 2.5 million hours MTBF, built-in dual-plane anti-vibration mechanism for rack cluster working environment
  • Average access latency 4.16ms, optimized firmware algorithm to improve mixed read-write stability
  • 5-year official enterprise limited warranty, qualified batch aging test for large-scale data center deployment

Basic Specification

Item
Parameter
Part Number
ST20000NM007D
Product Series
Seagate Exos X20
Raw Capacity
20TB
Form Factor
3.5 inch LFF, 26.1mm Height
Interface
SATA 6Gb/s (SATA III)
Rotational Speed
7200 RPM (7.2K)
Cache Buffer
256MB
Recording Type
CMR Conventional Magnetic Recording
Max Sustained Speed
Up to 255MB/s
Average Latency
4.16ms
Annual Workload
550TB / Year
MTBF
2,500,000 Hours
Internal Structure
10 Disks / 20 Heads Helium Sealed
Operating Temperature
0°C ~ 60°C
Warranty
5 Years Seagate Enterprise Official Warranty
Application
Data Center Cluster, Enterprise NAS/SAN, Backup Archive, Video Surveillance, Big Data Storage

Compatibility

Compatible with all mainstream 3.5-inch SATA bay rack servers, including Dell PowerEdge, Lenovo ThinkSystem, Inspur NF series rack servers. Fully supports Windows Server, Linux, VMware ESXi, FreeNAS and mainstream enterprise OS. Compatible with standard SATA RAID cards, enterprise storage enclosures, Ceph distributed storage and private cloud platforms. Plug-and-play, suitable for old storage array disk replacement and batch capacity expansion upgrade.

Usage Scenarios

  • Large-scale data center high-density cold data centralized storage cluster deployment
  • Enterprise high-capacity NAS private cloud, file resource pool and shared storage construction
  • Offline data warehouse, big data analysis, Hadoop distributed storage node deployment
  • Enterprise disk-to-disk long-term backup, compliance data retention and archive storage
  • HD video surveillance centralized storage, media asset library massive video saving
  • Cost-effective storage server upgrade, reduce per-TB storage overall TCO

FAQ

Q1: Is ST20000NM007D CMR or SMR? A: It is full CMR vertical enterprise hard drive, no random write performance drop, fully applicable to enterprise RAID array and frequent overwrite business.
Q2: What is the difference between NM007D and NM003D? A: ST20000NM007D is SATA 6Gb/s version; ST20000NM003D is SAS 12Gb/s version, different interface for different storage host adaptation.
Q3: Can this hard drive run 7×24 continuous operation? A: Yes, helium sealed enterprise design, 550TB yearly workload and 2.5 million MTBF, specially designed for long-term uninterrupted data center operation.
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