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- Compression based mostly SSD pushes PCIe Gen5 efficiency previous typical flash limits
- Excessive benchmark outcomes depend on workloads that compress cleanly and predictably
- Roealsen6 R6101C trades fastened capability assumptions for pace and effectivity
DapuStor is a Chinese language startup which develops and makes very giant – and really quick – enterprise-grade SSDs.
These embrace the DapuStor J5060 61.44TB and the Roealsen6 R6101 7.68TB. The most recent drive from the agency is the Roealsen6 R6101C 7.68TB SDD, which TweakTown reviewed and raved over.
Testing confirmed the drive delivering report sequential and combined workload throughput when compression was enabled – and TweakTown wrote, “That is by far the quickest charge we’ve encountered from any single PCIe Gen5 x4 SSD.”
Highest sequential throughput and combined workload
A part of DapuStor’s Roealsen6 collection, the brand new SSD is constructed across the firm’s in home DP800 controller and firmware. It makes use of a PCIe 5.0 interface and 3D eTLC NAND flash, whereas supporting the NVMe 2.0 protocol.
Not like normal SSDs, the R6101C contains an software processor paired with a clear {hardware} compression engine.
This enables knowledge to be compressed earlier than being written to flash, lowering the quantity of bodily storage accessed.
Efficiency and usable capability rely, naturally, on how compressible the information is. Customers can favor uncooked pace or efficient capability, though each are tied on to workload traits.
Underneath preferrred situations, the compression system can attain as much as a 4:1 ratio. This enables a 7.68TB drive to current a number of instances its bodily capability to the host.
This echoes lengthy standing practices in tape storage, the place LTO media lists native and compressed capacities.
At a 2:1 compression ratio, TweakTown measured as much as 14,200MB/s sequential writes and 15,050MB/s sequential reads. Each figures exceeded manufacturing facility specs.
Random write testing additionally set information. Outcomes reached round 1.27 million IOPS in 4K workloads on the similar compression degree.
The SSD attracts roughly 18W below load and makes use of a U.2 kind issue. It’s rated for 1 DWPD and helps widespread enterprise platforms.
Compression based mostly SSDs aren’t new after all, with merchandise from ScaleFlux already available on the market, however the brand new Roealsen6 provides an alternative choice for consumers.
TweakTown rated it 99/100, whereas noting that actual world outcomes will depend upon attaining compression ranges that received’t apply to all knowledge varieties.
Senior {Hardware} Editor Jon Coulter concluded, “DapuStor’s Roealsen6 R6101C 7.68TB has delivered the best sequential throughput and the best combined workload throughput we’ve ever encountered from any flash based mostly SSD.”
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