Overview of File Systems

This page provides an overview of file systems at OSC. Each file system is configured differently to serve a different purpose:

  Home Directory Project Local Disk Scratch (global) Tape
Path /users/project/userID /fs/project /tmp /fs/scratch N/A
Environment Variable $HOME or ~ N/A $TMPDIR $PFSDIR N/A
Space Purpose Permanent storage Long-term storage Temporary Temporary Archive
Backed Up? Daily Daily No No Yes
Flushed No No End of job when $TMPDIR    is used End of job when $PFSDIR is used No
Visibility Login and compute nodes Login and compute nodes Compute node Login and compute nodes N/A
Quota/Allocation 500  GB  of storage and 1,000,000 files Typically 1-5  TB  of storage and 1,000,000 files Varies. Depending on node No quota N/A
Total Size 900  TB 3,400  TB Varies. Depending on system 1,000  TB 5,500  TB
Bandwidth 10  GB/S 40 to 50  GB/S Varies. Depending on system 100  GB/S 3.5  GB/S
Type NetApp  WAFL  service GPFS Varies. Depending on system GPFS LTO  tape
Service: