ESG's Tony Palmer discusses the results of ESG Lab's recent testing of Dell EMC Isilon Flash, a scale-out NAS storage system.
Tony: Welcome to another ESG Lab video summary. I'll be reviewing the results of our testing of Dell EMC Isilon All-Flash, a scale-out now storage system.
A recent ESG survey asked about the benefits that organizations realized from deploying solid state or flash storage technology. 57% cited improved application performance. This continues to be an important driver of flash storage adoption, along with improved OpEx and TCO, as organizations seek high performance access to growing amounts of unstructured data. To meet these performance demands, yet deliver substantial capacity, flexibility, and scaling. To keep pace with rapid storage growth, Dell EMC introduced Isilon All-Flash. Today, Isilon All-Flash can scale from 92 terabytes to 33 petabytes, and up to 144 nodes in a single cluster.
To verify performance and scalability, ESG Lab first tested for throughput. We simulated sequential IO on a four node Isilon All-Flash cluster, for both read and write workloads. We observed that the cluster sustained throughput of 7.7 gigabytes per second for writes, and 15.4 gigabytes per second for reads. ESG Lab then measured response time, against an increasing number of file operations per second. As we increase the workload, from 205,000 to just over 251,000 file ops per second, ESG Lab observed consistently low response times. From 0.8 to 1.2 milliseconds. Finally, we projected the file operations and throughput for a 144 node cluster. In previous testing with other Isilon products, going back more than 12 years, we have observed near perfect linear performance scaling of large clusters. For Isilon All-Flash, we calculated that a 144 node cluster would support more than 9 million file ops, and 550 gigabytes per second of throughput.
Why do these results matter? A storage solution with high levels of throughput is ideally suited for bandwidth intensive workloads requiring access to unstructured data. Scaling out storage granularly and easily, without sacrificing performance is important as data sets grow. Maintaining consistent performance ultimately translates into meeting SLAs and decreasing operational costs, thus increasing revenue. With ever increasing volumes of unstructured data to mine, IT requires storage to meet high performance demands, yet scale cost effectively and as needed. ESG Lab has confirmed that Dell EMC Isilon All-Flash is well suited to support response time sensitive, IO intensive, unstructured data workloads.