Servidor Xincuan | Proveedor de hardware de servidor empresarial
The Workhorse of the Exos Lineup: 20TB of Capacity-Dense SAS Storage With Proven Reliability
The Seagate Exos X20 20TB sits at the sweet spot of the enterprise HDD market: large enough for capacity-dense deployments, proven enough to trust with production data, and priced well below the 24TB flagships. Con 7,200 RPM, 12Gb/s SAS dual-port connectivity, 2.5 million hours MTBF, and a 550 TB/year workload rating, the X20 is the drive that powers backup repositories, object storage (MiniIO, cef), and nearline archive tiers across thousands of data centers. It is the drive you order when you need 300 TB of reliable, redundant storage without paying the density premium for 24TB drives.
Especificaciones técnicas
| Parámetro | Especificación |
|---|---|
| Capacidad | 20tuberculosis (también: 14tuberculosis, 16tuberculosis, 18TB in X20 series) |
| Factor de forma | 3.5-pulgada LFF |
| Interfaz | SAS de 12 Gb/s (dual-port, full-duplex) |
| Velocidad rotacional | 7,200 RPM |
| Tecnología de grabación | RMC (Grabación magnética convencional) with TDMR (Two-Dimensional Magnetic Recording) heads |
| Búfer de caché | 256 MEGABYTE |
| Tasa de transferencia sostenida | Hasta 285 MB/S |
| Latencia promedio | 4.16 EM |
| MTBF | 2,500,000 horas |
| AFR | 0.35% (objetivo de diseño) |
| Límite de tasa de carga de trabajo | 550 tuberculosis/año |
| Tasa de URE | 1 sector por 10^15 bits |
| Fuerza (Inactivo / Operante) | 4.8W / 7.0W |
| Sealing | Helium-sealed (HelioSeal) |
| RV Sensors | Sí (Rotational Vibration sensor array) |
| Tamaño del sector | 512e or 4Kn (selectable) |
| Choque (Operante / No operativo) | 40GRAMO / 200GRAMO |
| Físico | 147.0 X 101.85 X 26.1 milímetro, 680gramo |
| Temperatura | 5C a 60C |
| Garantía | 5-año limitado (fabricante) |
X20 vs X24 vs 2X18 — Choosing the Right Exos
| Característica | X20 20TB | X24 24TB | 2X18 18TB (HAMR) |
|---|---|---|---|
| Capacidad | 20tuberculosis | 24tuberculosis | 18tuberculosis (dual-actuator, 2x 9TB) |
| Recording Tech | RMC + TDMR | RMC + TDMR | HAMR |
| Actuators | Single | Single | Dual (MACH.2) |
| Transfer Rate | 285 MB/S | 270 MB/S | 288 MB/S (dual ~570 MB/s) |
| Price per TB (relative) | 100 percent | ~95 percent | ~105 percent |
| Best for | Proven capacity tier, respaldo, object storage | Maximum density per bay | High-throughput sequential workloads |
Deployments Where the X20 Is the Right Drive
- Backup repository (Veeam/Commvault): 12x X20 in RAID 6 = 200 tuberculosis utilizable. Sequential write at 285 MB/s por unidad. A 100 TB backup completes in the overnight window.
- Object storage (MiniIO, cef): 24-drive node = 480 TB raw. Erasure coding (EC 8+4) delivers ~360 TB usable with strong fault tolerance. SAS dual-port adds path redundancy.
- Nearline archive: Compliance archives, media libraries, and cold data tiers where cost per terabyte and 24/7 reliability matter more than IOPS.
Plataformas compatibles
SAS de 12 Gb/s, compatible with all Dell PowerEdge servers with SAS backplanes (R660, R760, R770, R860, R960), xFusion FusionServer V7, Lenovo ThinkSystem. Works with PERC H730/H740/H750/H755/H965i, LSI/Broadcom 93xx/94xx/96xx SAS HBAs.
Fuente a través de Xincuan
We supply Exos X20 drives with factory-direct pricing, 3-año de garantía, y envío global. Descuentos por volumen para 20+ unidades.
