| Home Directories | Mounted read-write on all RC resources | 2 GB | Not high performance | /home/user1234 |
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| Project Spaces | Mounted read-write on all RC resources | 250 GB | Not high performance; can be used to store or share programs, input files, maybe small data files | /projects/user1234 |
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| 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/director 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 | /scratch/summit/user1234 |
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| General Purpose Scratch Filesystem | Mounted read-write on all RC 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 |
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