IBM General Parallel File System (GPFS) is a high performance parallel filesystem featuring storage virtualization, high availability and is designed to manage large amounts of file data, You can find out more about GPFS in this introduction.
In this example, user gtsai will check her GPFS quota from a linux command line.
# /usr/local/bin/myquota
Displaying quota usage for user gtsai
--------- Space (KB) ---------
FileSystem FileSet Usage Quota Path
---------------- ---------------- ------------------ ------------------ ----------------------------------
fermi-fs2 gtsai 39,328 1,048,576 /gpfs/slac/fermi/fs2/u/gtsai
des-fs1 gtsai 39,328 3,145,728 /gpfs/slac/des/fs1/u/gtsai
kipac-fs1 gtsai 39,328 2,097,152 /gpfs/slac/kipac/fs1/u/gtsai
scs-fs1 gtsai 480 10,485,760 /gpfs/slac/scs/fs1/u/gtsai
staas-fs1 gtsai 0 20,971,520 /gpfs/slac/staas/fs1/u/gtsai
staas-fs1 gtsai 0 20,971,520 /gpfs/slac/staas/fs1/u/gtsai
Below is a schematic of a 'typical' SCS GPFS storage building block. It includes (2) redundant file servers, (2) redundant storage servers and (2) storage arrays. This system would provide 320 TB of space.