The quickening: Qumulo speed with software boost for new kit

I was born in 1518... we mean.. machine learning-driven caching speedup

Qumulo's filer hurricane wind speeds rise

Qumulo says improvements in its QF2 software means its products will run faster – 20 per cent faster than Dell EMC Isilon boxes by one measure.

The company first announced all-flash systems in November last year, in the shape of the P-Series.

The old hardware was a 2U Intel box that can run up to 24 NVMe SSDs in U.2 format, dual Xeon Skylake Gold-level 6126 processors and 192GB (12 x 16GB) of RAM. There were two models; the 23T is a 23TB model with 12 x 1.92TB SSDs while the 92T has a 92TB capacity using 24 x 3.84TB SSDs. The drives use 3bits/cell (TLC) 3D NAND.

The 92T ten pumped out 16GB/sec; 4GB/sec from a single node.

Now the 92T offers 18GB/sec throughput and 200,000 IOPS from a four-node cluster. Qumulo says this means 90GB/sec from a rack.

In comparison Dell EMC’s all-flash Isilon F800 filers offer up to 15GB/sec per chassis and up to 250,000 IOPS – ahead on the IOPS front but behind on the throughput measure. But then it does have four Xeon CPUs per chassis instead of Qumulo’s two.

The QF2 software has been improved with what Qumulo calls machine learning-powered pre-fetch, which queues up the files that the Ssoftware “thinks” users will most likely access next. The software can supposedly recognise user/workload specific behaviour and carry out dynamic workload scaling to maximise cache use.

It carries out file access pattern analysis and proactively caches individual file blocks that are most likely to be repeatedly accessed.

Qumulo says the software-driven speed increase means the all-flash P-Series can do 6K video playback and the hybrid QC_Series uncompressed 4K video playback. Users could see a 3x-10x performance improvement in frame-based workloads across video editorial and machine learning.

Intuitively this set of caching improvements seem to be things that other filer software vendors will copy.

Visitors to the NAB Show New York, October 4-8, can get more information at Qumulo’s stand; booth N941. ®




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