HGST
HGST Ultrastar 7K6000 0F22791 6TB 7200 RPM 128MB SAS 12Gb/s 3.5" internal hard drive
Enterprise 6TB SAS drive delivers 7200 RPM performance with 128MB cache for cloud and hyperscale storage
- PackagingBare Drive
- InterfaceSAS 12Gb/s
- Capacity6TB
- RPM7200 RPM
- Cache128MB
- Average Seek Time7.6ms
- Enterprise-grade SAS 12Gb/s interface for high-speed data centres
- 6TB capacity at 7200 RPM with 128MB cache for demanding workloads
- 6ms average seek and 4.16ms latency deliver responsive random access
- 50% more capacity and 30% better power efficiency than prior generation
- 2M hours MTBF with secure erase and self-encrypting options for data protection
Enterprise 6 TB SAS drive
The HGST Ultrastar 7K6000 0F22791 is a 6 TB 3.5-inch internal hard drive built for enterprise storage arrays. It spins at 7200 RPM with a 128 MB cache and connects through a SAS 12Gb/s interface. The bare-drive unit suits cloud, hyperscale and video-surveillance workloads that demand sustained throughput.
12 Gb/s SAS practical limits
The SAS 12Gb/s link tops out at 12 Gb/s per port and falls back to 6 Gb/s SATA for backward compatibility. Real-world throughput depends on the host controller, cabling and backplane design; the drive itself cannot exceed the electrical and protocol ceiling of the interface. Average latency is 4.16 ms with a 7.6 ms seek time.
Upgrade from 7K4000 generation
Compared to the prior 7K4000 this model delivers 50 per cent more capacity at 6 TB versus 4 TB and 30 per cent better power efficiency per terabyte. Sequential read and write speeds rise by 25 per cent while random write performance can triple through media cache technology. The jump is worth it when density and efficiency gains outweigh the cost of a controller refresh.
Highlights
- Enterprise-grade SAS 12Gb/s interface for high-speed data centres
- 6TB capacity at 7200 RPM with 128MB cache for demanding workloads
- 6ms average seek and 4.16ms latency deliver responsive random access
- 50% more capacity and 30% better power efficiency than prior generation
- 2M hours MTBF with secure erase and self-encrypting options for data protection
Specifications
| Brand | HGST |
|---|---|
| Series | Ultrastar 7K6000 |
| Model | HUS726060AL5210 (0F22791) |
| Packaging | Bare Drive |
| Interface | SAS 12Gb/s |
| Capacity | 6TB |
| RPM | 7200 RPM |
| Cache | 128MB |
| Average Seek Time | 7.6ms |
| Average Write Time | 8ms |
| Average Latency | 4.16ms |
| Features | Best-in-class random & sequential performance Reliable, field-proven, 7th generation 5-disk design Compared to prior generation 7K4000 - 50% more capacity (6TB vs. 4TB) - 30% better power efficiency (Watts/TB) - Up to 3X faster random write performance using media cache technology - 25% faster sequential read/write performance 12Gb/s SAS and 6Gb/s SATA for compatibility with high performance data centers 128MB cache buffer improves response time and data management Secure erase & Self-Encrypting Drive (SED) options Advanced format 4Kn and 512e models 2M hours MTBF rating Applications |
| Usage | For Enterprise Storage |
| Form Factor | 3.5" |
| Height (maximum) | 26.1mm |
| Width (maximum) | 101.6(+/-0.25)mm |
| Length (maximum) | 147mm |
| Shipping weight | 0.70 kg |
| Package size | 210 × 149 × 27 mm |
Questions about this item
Should I pick the 6 TB 7200 RPM SAS 12Gb/s model or a lower-capacity 4 TB variant for my storage array?
The 6 TB 7200 RPM drive gives 50% more capacity than the 4 TB 7K4000 while using 30% less power per terabyte, so you need fewer bays for the same raw space.
What does the 7200 RPM rating mean for real-world throughput inside a server?
At 7200 RPM the drive delivers up to 25% faster sequential read and write speeds versus the previous generation, with average seek time of 7.6 ms and average latency of 4.16 ms.
How does the SAS 12Gb/s interface limit transfer speed in practice?
The 12 Gb/s SAS link caps the burst transfer rate at the interface level, while sustained throughput is governed by the 7200 RPM mechanics and 128 MB cache buffer.
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