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If Your Storage Array Runs on 10TB Drives, Here Is the Migration That Doubles Capacity Without Adding a Single Drive Slot
A 12-bay server with 10TB drives yields 120 TB raw. The same server with 20TB Toshiba MG10 drives yields 240 TB raw — double the capacity, same drive count, same SAS ports, same power budget. No JBOD, no expander, no additional rack space.
Migration Checklist: 10TB to 20TB
- Verify RAID controller firmware supports 20TB+ drives. PERC H730/H740/H750/H755/H965i all support 20TB with firmware from 2022 onward. LSI 93xx/94xx/96xx require v16.00.00.00 or later.
- Plan for rebuild time. A 20TB RAID 6 rebuild takes 28-32 hours at 200 MB/S. Schedule during a maintenance window.
- Replace one drive at a time or build a new array. For production, build a new RAID 10 array with 20TB drives and migrate VMs via storage migration.
- Expand the filesystem after adding capacity. Installing drives does not automatically expand the datastore or volume.
- Keep 2 cold-spare 20TB drives on hand. A failure during a 30-hour rebuild is low-probability but high-consequence.
Especificaciones técnicas
| Parámetro | Especificación |
|---|---|
| Capacidad | 20tuberculosis (también: 16tuberculosis, 18tuberculosis) |
| Factor de forma | 3.5-pulgada LFF |
| Interfaz | SAS de 12 Gb/s |
| Velocidad rotacional | 7,200 RPM |
| Tecnología de grabación | CMR with Flux-Controlled MAMR |
| Búfer de caché | 512 MEGABYTE |
| Tasa de transferencia sostenida | Hasta 270 MB/S |
| Latencia promedio | 4.17 EM |
| MTBF | 2,500,000 horas |
| AFR | 0.35 por ciento (objetivo de diseño) |
| Límite de tasa de carga de trabajo | 550 tuberculosis/año |
| Tasa de URE | 1 sector por 10^15 bits |
| Fuerza (Idle/Operating/Spin-Up) | 4.2W / 7.2W / 22W |
| Caza de focas | Sellado con helio (6th gen) |
| Tamaño del sector | 512e o 4Kn |
| Choque (Operating/Non-Op) | 70GRAMO / 300GRAMO |
| Físico | 147.0 X 101.85 X 26.1 milímetro, 670gramo |
| Temperatura | 5C a 60C |
| Garantía | 5-año (fabricante) |
MG10 vs Exos X24 vs Ultrastar HC570
| Característica | MG10 20TB | Exos X24 24TB | HC570 22TB |
|---|---|---|---|
| Capacidad | 20tuberculosis | 24tuberculosis | 22tuberculosis |
| Recording Tech | FC-MAMR | TDMR+CMR | ePMR+OptiNAND |
| Transfer Rate | 270 MB/S | 270 MB/S | 265 MB/S |
| Idle Power | 4.2W | 5.2W | 5.6W |
| MTBF | 2.5M hours | 2.5M hours | 2.5M hours |
| Lo mejor para | Lowest idle power | Highest capacity | Mixed workloads |
| Precio | 100 por ciento | ~115 percent | ~110 percent |
Plataformas compatibles
All Dell PowerEdge with 3.5-inch SAS backplanes, xFusion V7, Lenovo ThinkSystem. PERC H730/H740/H750/H755/H965i. LSI/Broadcom 93xx/94xx/96xx.
Fuente a través de Xincuan
Precios directos de fábrica, 3-año de garantía, global shipping. Descuentos por volumen para 20 plus drives.
