Supports SAS 3.0 12 Gb/s.
Supports single or dual port mode.
Read intensive: 1 DWPD@ 5 years, 960 GB to 3.84 TB.
Write intensive: 3 DWPD@ 5 years, 3.2 TB.
Achieves 2100 MB/s in sequential read speed.
Achieves 410K IOPS in random read speed.
Supports notification hot-plug and violence hot-plug.
UM611a/UM631a is built with Union Memory’s in-house controller and firmware, and thanks to the synergistic acceleration of hardware & software algorithm on the critical data path. UM611a/UM631a achieves 2100 MB/s in sequential read, 410K IOPS in random read speed., and it also leads the industry in data reliability and QoS performance.
UM611a/UM631a supports single port or dual port operating modes, it’s Mean Time Between Failures(MTBF) is more than 2.5 million hours, Annual Failure Rate (AFR) is less than 0.35%. UM611a/UM631a provides enterprises with high-performance and high reliability storage solutions with low system TCO.
UM611a/UM631a supports online activation of firmware upgrade within 1 second, so you do not need to Power On and Power Off again. Also, the ESSD supports Notify Hot Plug, Brute-Force Hot Plug, and various mainstream open-source tools.
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Product Series |
UM611a |
UM631a |
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Capacity |
960 GB |
1.92 TB |
3.84 TB |
3.2 TB |
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Sequential Read(1 MB, Dual Port) |
1600 MB/s |
2100 MB/s |
2100 MB/s |
2000 MB/s |
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Sequential Write(1 MB, Dual Port) |
1000 MB/s |
1800 MB/s |
2000 MB/s |
1900 MB/s |
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Random Read IOPS(4 KB, Dual Port) |
360K |
410K |
410K |
410K |
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Random Write IOPS(4 KB, Dual Port) |
50K |
75K |
70K |
150K |
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Average Read Latency(4 KB, Dual Port) |
118 μs |
118 μs |
118 μs |
118 μs |
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Average Write Latency(4 KB, Dual Port) |
38 μs |
38 μs |
38 μs |
38 μs |
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TBW |
1.664 PB |
3.504 PB |
7.008 PB |
17.52 PB |
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Power(Typ./Max.) |
5 W/7 W |
5 W/8.5 W |
5 W/10 W |
5 W/10 W |
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Endurance(4K Random) |
1 DWPD |
3 DWPD |
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Form Factor |
U.2 |
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NAND Flash |
3D TLC |
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Power Loss Protection |
Supported |
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Reliability |
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UBER |
e10-17 |
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MTBF |
2.5 million hours |
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AFR |
0.35% |
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Data Retention(Power Off) |
40℃, >3 months |
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Service Time |
5 years(Not exceed the TBW) |
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Protocol |
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Bus Interface |
SAS 3.0 |
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TRIM |
Supported |
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Environmental Parameter |
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Storage Temperature |
- 40℃ to 85℃ |
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Operating Temperature |
0℃ to 78℃ |
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Humidity |
5％ to 95％ R.H, non-condensing |
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Altitude |
Operating: -305 m to 3048 m Non-operating: -305 m to 12192 m |
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Vibration |
Operating: 2.17 GRMS(5 to 700HZ) Storage: 3.13 GRMS(5 to 800HZ) |
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Shock |
1000G@0.5ms (Half Sine Wave) |
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Power Supply |
DC 12V, +/-10% |
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Impulse Current (Max.) |
<3A@1s |
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Physical Form |
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Form Factor |
2.5 inches |
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Weight |
<350 g |
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Address: 19th Floor, Block B, Ramaxel Houhai Center, Nanshan District, Shenzhen
Tel: +86 755-2681 3300
E-mail: support@unionmem.com
