Filesystem Storage

The following is an overview of the filesystem storage available as a common good service to Research Computing users. More detailed information on Storage can be found in our User Guide.

Home Directories

  • Mounted read-write on all Research Computing resources
  • Not high performance
  • 2 GB quota
  • /home/user1234

Project Spaces

  • Mounted read-write on all Research Computing resources
  • Not high performance; can be used to store or share programs, input files, maybe small data files
  • 250 GB quota
  • /projects/user1234

Summit Parallel Scratch Filesystem

  • Mounted read-write on all Summit nodes, login nodes, and data-transfer (Globus) nodes
  • Default 10 TB block quota and 20 million file/directory quota per user.  Can be increased on request
  • Not for long-term data storage; files created more than 90 days in the past are automatically purged
  • Ideal for high-speed output from computations on Summit
  • Filesystem type is IBM SpectrumScale, aka GPFS.  It is mounted via NFS to login and data-transfer nodes
  • /scratch/summit/user1234

General Purpose Scratch Filesystem

  • Mounted read-write on all Research Computing resources, except Summit compute nodes
  • No hard quotas, but total available space limited to 40 TB
  • Not for long-term data storage; files created more than 90 days in the past may be purged at any time
  • Intended mainly as a scratch target for jobs running on Blanca
  • /rc_scratch/user1234