SAS 3.0 12Gb/s interface
Read-intensive: 1 DWPD for 5 years; Mixed-use: 3 DWPD for 5 years
Up to 2,200/2,000 MB/s sequential read/write bandwidth and 425/260K IOPS random read/write
Support orderly hot plug and surprise hot plug
MTBF ≥ 2.5M hours, AFR ≤ 0.35%

Up to 2,200/2,000 MB/s sequential read/write and 425/260K IOPS random read/write
Combined with ultra-low latency and excellent QoS, they provide stable and efficient storage support for critical workloads such as databases, virtualization, and financial transactions
Empowering enterprises with high data availability

MTBF ≥ 2.5M hours, AFR ≤ 0.35%, designed for mission-critical scenarios
With power-loss protection and superior performance, they safeguard critical data, reduce downtime and lower long-term TCO
Supporting business continuity management

Support online firmware upgrade activation (no power cycle required), compatible with mainstream open-source management tools
Achieving non-disruptive maintenance and efficient O&M

| Model | UH631b | UH611b | ||||||
| Capacity | 800GB | 1.6TB | 3.2TB | 6.4TB | 960GB | 1.92TB | 3.84TB | 7.68TB |
|
Sequential read (128KB) |
2000MB/s | 2200MB/s | 2200MB/s | 2200MB/s | 2000MB/s | 2200MB/s | 2200MB/s | 2200MB/s |
|
Sequential write (128KB) |
1100MB/s | 2000MB/s | 2000MB/s | 2000MB/s | 1100MB/s | 2000MB/s | 2000MB/s | 2000MB/s |
|
Random read IOPS (4KB) |
400K | 425K | 425K | 425K | 400K | 425K | 425K | 425K |
|
Random write IOPS (4KB) |
110K | 220K | 230K | 260K | 50K | 110K | 120K | 150K |
| Average read latency(4KB) | 85μs | |||||||
|
Average write latency (4KB) |
28μs | |||||||
| Total bytes written | 4.38PBW | 8.76PBW | 17.52PBW | 35.04PBW | 1.75PBW | 3.50PBW | 7.01PBW | 14.02PBW |
|
Power consumption (Idle/Max) |
6/9W | 6/10.5W | 6/11W | 6/13W | 6/9W | 6/10.5W | 6/11W | 6/13W |
| Endurance | 3DWPD | 1DWPD | ||||||
|
Flash memory medium |
3D TLC | |||||||
| Power loss protection | Support | |||||||
| Reliability | ||||||||
| UBER | <10-18 | |||||||
| MTBF | 2.5 million hours | |||||||
| AFR | ≤0.35% | |||||||
|
Data retention (power off) |
40℃ for 3 months | |||||||
| Warranty period | 5 years (not exceeding the total bytes written) | |||||||
| Standard | ||||||||
| Bus interface | SAS 3.0 | |||||||
| TRIM | Support | |||||||
| Environmental Parameters | ||||||||
| Storage temperature | -40℃ to 85℃ | |||||||
|
Operating temperature |
0℃ to 83℃ | |||||||
| Humidity | 5% to 95% relative humidity, non-condensing | |||||||
| Altitude | Operating: -305m to 5,486m;Non-operating: -305m to 12,192m | |||||||
| Vibration | Operating: 2.17 GHz (5–700 Hz); Storage: 3.13 GHz (5–800 Hz) | |||||||
| Shock | 1000G@0.5ms (Half-sine wave) | |||||||
| Power supply | DC 12V, +/-10% | |||||||
| Inrush current (Max) | <3A@1s | |||||||
| Appearance | ||||||||
| Form factor | U.2 (2.5-inch, 15mm) | |||||||
| Weight | <350g | |||||||