AccelStor realized that the laboratory did not lack computing power; instead, the performance slowdown was in the back-end storage devices after all data had been processed. The traditional hard disk storage devices initially used by the laboratory were built using a SAS HDD RAID 0 configuration. Using an NFS protocol, the laboratory used 15 compute nodes and integrated these with the hard disk storage devices. AccelStor suggested replacing the back-end storage devices with a NeoSapphire™ All-Flash Array（AFA） and adding a 10GbE network switch to increase the data exchange bandwidth. The NeoSapphire AFA is also equipped with AccelStor’s exclusive FlexiRemap software technology, which targets the random write data likely to cause system storage performance bottlenecks and improves performance acceleration operations.
Using the Gaussian 09 software frequently adopted by the research team, AccelStor applied the coupled cluster method to compare the overall computing time of a traditional hard disk array with the NeoSapphire AFA under the same structural model. The traditional hard disk array required 32 minutes 25 seconds, while the NeoSapphire only needed 5 minutes 47 seconds, making it 5.4 times faster. Using the NeoSapphire to resolve storage bottlenecks in the original architecture enabled the compute node CPU to implement stoichiometry fully.
The AccelStor team also trialed and compared different quantities of compute nodes: When there was only one compute node, the traditional hard disk array’s performance was about the same as that of the NeoSapphire AFA. However, when compute nodes were increased, and their quantity of data also increased, it was obvious that the NeoSapphire AFA could still execute all operations within a certain period, while the traditional hard disk array required significantly more time.