- Compression-based PCIe Gen5 SSD performance exceeds the limits of a conventional flash drive
- Extreme test results depend on cleanly and predictably compressed workloads
- The Roealsen6 R6101C trades static power ratings for speed and efficiency
DapuStor is a Chinese startup that designs and manufactures very large (and very fast) enterprise-grade SSDs.
These include the DapuStor J5060 61.44TB and the Roealsen6 R6101 7.68TB. The company’s latest drive is the 7.68TB Roealsen6 R6101C SDD, which Tweaktown Criticism and praise.
Testing has shown that Drive Record delivers sequential and mixed workload performance with compression enabled and Tweaktown wrote: “This is by far the fastest speed we’ve found on any PCIe Gen5 x4 SSD.”
Maximum consistent performance and mixed loads
The new solid-state drive, part of the DapuStor Roealsen6 series, is based on the company’s DP800 controller and firmware. It uses PCIe 5.0 interface and 3D eTLC NAND flash memory and supports NVMe 2.0 protocol.
Unlike standard solid-state drives, the R6101C includes an application processor combined with a transparent hardware compression mechanism.
This allows data to be compressed before being written to flash memory, reducing access to physical storage.
Performance and usable capacity naturally depend on how well the data is compressed. Users may prefer raw speed or effective capacity, although both are directly related to workload characteristics.
Under ideal conditions, the compression system can achieve a ratio of 4:1. This allows a 7.68 TB disk to present several times more physical capacity to the host.
This echoes the long-standing practice of tape storage, where LTO media lists native and compressed capacity.
2:1 compression ratio, Tweaktown Measured up to 14,200MB/s sequential write and 15,050MB/s sequential read. Both numbers exceeded factory specifications.
Random written tests also set records. The result reached around 1.27 million IOPS on a 4K workload with the same compression level.
The SSD consumes about 18W under load and uses the U.2 form factor. It has a DWPD 1 rating and is compatible with common enterprise platforms.
Compression based solid state drives are certainly nothing new, Scaleflux products are already on the market, but the new Roealsen6 adds another option for buyers.
Tweaktown It has a rating of 99/100, noting that real-world results will depend on achieving a level of compression that may not apply to all data types.
“DapuStor’s Roealsen6 R6101C 7.68TB delivers the highest sequential performance and mixed workload performance we’ve ever seen in a flash-based solid-state drive,” concluded Senior Hardware Editor John Coulter.
Follow TechRadar on Google News I Add us as your preferred source Get news, reviews and opinions from our experts in your feed. Don’t forget to click the follow button!
And, of course, you can Siga TechRadar on TikTok Get our regular updates in the form of news, reviews, unboxing and videos. WhatsApp very
