HPC @ Uni.lu

High Performance Computing in Luxembourg

Scale-out NAS Storage: Isilon System

This spring, the new Dell/EMC Isilon system (shown below), commonly funded from SIU, LCSB and HPC budget lines, came online and now provides a large 1850 TB shared storage space for all members of the UL.

The OneFS based system integrates 16 storage nodes in two performance tiers and is designed for scalability, resiliency and operational flexibility.

Projects requiring Big Data storage, currently available on the UL HPC GPFS storage systems of the Gaia cluster with redundant copies on the Isilon, can migrate between the two systems based on performance and access requirements.

Bandwidth tests for streaming workloads, conducted from a pool of 15 Gaia nodes, have shown aggregate I/O speeds in excess of 3.6GB/s on read (vs. 6.9GB/s on GPFS) and respectively 2GB/s on write operations (vs. 6.6GB/s on GPFS).