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DapuStor Roalsen SSD R5100 7.5 TB

7.5 TB
Capacity
DP616
Controller
TLC
Flash
PCIe 4.0 x4
Interface
U.2
Form Factor
Front
PCB Front
Sohu
PCB Front
Flash
Sohu
Flash
DRAM
Sohu
DRAM
SSD Controller
Controller
The DapuStor Roalsen SSD R5100 is a solid-state drive in the U.2 form factor, launched in 2022. It is available in capacities ranging from 7.5 TB to 15 TB. This page reports specifications for the 7.5 TB variant. With the rest of the system, the DapuStor Roalsen SSD R5100 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the DPU616A0 from DapuStor, a DRAM cache chip is available. DapuStor has installed 112-layer TLC NAND flash on the Roalsen SSD R5100, the flash chips are made by Kioxia. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The Roalsen SSD R5100 is rated for sequential read speeds of up to 7,400 MB/s and 5,700 MB/s write; random IOPS reach up to 1750K for reads and 280K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. DapuStor guarantees an endurance rating of 14016 TBW, a high value.

Solid-State-Drive

Capacity: 7.5 TB (7680 GB)
Variants: 7.5 TB 15 TB
Overprovisioning: 1039.4 GB / 14.5 %
Production: Active
Released: 2022
Part Number: DPRD3108T0T507T6000
Market: Enterprise

Physical

Form Factor: U.2
Interface: PCIe 4.0 x4
Protocol: NVMe 1.4
Power Draw: 6.5 W (Idle)
Unknown (Avg)
22.5 W (Max)

Controller

Manufacturer: DapuStor
Name: DPU616A0
Architecture: ARM Cortex-A53
Core Count: 8-Core
Frequency: 1,800 MHz
Foundry: TSMC FinFET
Process: 12 nm
Flash Channels: 16 @ 1,600 MT/s
Chip Enables: 8
Controller Features: DRAM (enabled)

NAND Flash

Manufacturer: Kioxia
Name: BiCS5 HDR
Part Number: TH58LKT2Y25BA8H
Type: TLC
Technology: 112-layer
Speed: 1600 MT/s
Capacity: 16 chips @ 8 Tbit
Toggle: 4.0
Topology: Charge Trap
Dies per Chip: 16 dies @ 512 Gbit
Planes per Die: 2
Word Lines: 128 per NAND String
87.5% Vertical Efficiency
Read Time (tR): 56 µs
Program Time (tProg): 484 µs
Die Read Speed: 571 MB/s
Die Write Speed: 66 MB/s
Endurance:
(up to)		 3000 P/E Cycles
(100000 in SLC Mode)
Page Size: 16 KB
Block Size: 1344 Pages
Plane Size: 448 Blocks

DRAM Cache

Type: DDR4-3200
Name: NANYA NT5AD512M16C4-JR
Capacity: 10240 MB
(10x 1024 MB)
Organization: 8Gx16

Performance

Sequential Read: 7,400 MB/s
Sequential Write: 5,700 MB/s
Random Read: 1,750,000 IOPS
Random Write: 280,000 IOPS
Endurance: 14016 TBW
Warranty: 5 Years
MTBF: 2.0 Million Hours
Drive Writes Per Day (DWPD): 1.0
Write Cache: N/A

Features

TRIM: Yes
SMART: Yes
Power Loss Protection: Yes
Encryption:
  • AES-256
RGB Lighting: No
PS5 Compatible: No

Reviews

Notes

NAND Die:

Although this Die is a 4-plane design, most Kioxia BiCS5 NAND Dies used in most SSDs are dual planes design because of Yield and production cost.
And because of the die being dual-plane the Throughput is cut in half to 66 MB/s per die.
There is no CuA (Circuitry under Array) in the Dual-Plane variant.
Typical Endurance: 1700 P.E.C.
Rated Endurance: 5.000 (up to) P.E.C.
Aug 27th, 2024 23:20 EDT change timezone

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