The Nuclear Safety Institute was established in 1988 to advance basic research to address the problems of increasing the safety of nuclear power plants. A balanced combination of fundamental research and topically applied projects is a sort of ‘business card’ of the Institute and a conceptual framework of its activities in the field of nuclear, radiation, and environmental safety of nuclear power engineering and nuclear fuel cycle facilities.
The Institute’s activities encompass a broad range of studies, including numerical simulation of physical processes in reactor installations, nuclear power plants, and nuclear fuel cycle enterprises. The studies also extend to the analysis of radiological, environmental, and socio-economic aspects of nuclear power and industry facilities. IBRAE’s 25-year scientific and technical achievements are internationally recognized and widely utilized in the nuclear power industry.
We have a high-performance cluster with 20 nodes based on CentOS. All nodes use shared storage (storage node) to store intermediate calculations. The storage node consists of two independent servers with an iSCSI storage system.
The cluster has been used for a long time already and no longer meets our performance standards for current tasks. So, an upgrade was needed. In the first stage, the storage node was replaced. As the cluster was used in 24/7 mode, an uninterruptible upgrade process was needed.
We needed the storage system with the latest hardware platform because its life cycle was long. So, the unit was to have a powerful processor, large RAM cache, high availability, support of third-party HDDs and SSDs, and easy maintenance and upgrade capabilities. Also, we decided to move from iSCSI to a Fibre Channel interface due to lower latency and higher throughput.
XCubeSAN XS5224D with FC 16Gb host cards. The new storage servers were connected to XS5224 and the existing Infiniband network. A New shared folder was created and attached to cluster nodes. During some period, the existing data was moved from the old storage system to a new one. Later the storage node was disabled and removed.
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