The availability, accessibility, and reliability of scientific data are critical to the success of the missions that rely on our world-class computers. In addition to burst buffers and tape archives, parallel file systems are a key part of the storage triad that keeps our data safe and accessible.
High performance computing systems require high performance storage and LC provides it in multiple forms: Lustre, IBM Spectrum Scale, and VAST.
Lustre: LLNL contributes to the development of and supports the open source Lustre parallel file systems, which are mounted across multiple compute clusters and deliver high-performance, global access to data.
Spectrum Scale: Commonly known as GPFS, its former name, Spectrum Scale is IBM's high-performance parallel file system. GPFS is available with all the CORAL-era compute systems, such as Sierra and Lassen, and mounted on those compute and login nodes. It is also mounted on the transfer nodes in each major LC center: oslic, rzslic, and cslic.
VAST: The all-flash VAST file system is a relatively new option available to users and offers the performance of a parallel file system, but with the convenience and ease of NFS. VAST is currently mounted across CZ systems and is also mounted on the rzslic transfer nodes.
For more on computer storage and file systems:
• User Portal File Systems Page