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File Systems
- home directories - Users have a different home directory
on the FWGrid machines than they do on other departmental
resources. Home directories on the FWGrid machines physically
reside on the FWGrid NFS server. The data stored on FWGrid resources
are not backed up. Users are recommended to keep a copy of their
data on other storages that they have access to.
On FWGrid, all users are assigned 500MB disk quota on home
directories.
Short-term peak disk usage can be requested by sending emails to
fwgridhelp@soe.ucsd.edu.
- cluster scratch space -
On the cluster frontend (fwgrid-compute-server-0.ucsd.edu),
there is a 250GB scratch space. This scratch space is NFS-mounted
on all compute nodes as /scratch1.
The scratch filesystems are cleaned regularly and should not be used
for long-term data storage. Any user files in the cluster scratch
space not modified in 30 days are automatically deleted.
Please note that the program "touch" will not change the deletion
date.
- node local disk space -
Each machine in the compute cluster is configured with two
local partitions, /state/partition1 and /state/partition2.
Each of them is approximately 240GB in capacity. These
two partitions enable users to store intermediate files used by
compute jobs without incurring NFS overhead. To use these
scratch spaces, please create your own directories under the
/state/partition1/ and/or /state/partition2/. Then write your
data into the new created directories. These file systems
are cleaned up every 7 days or less, depending on the loads.
Please do not use the local disk space for storage of files for
extended periods of time.
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