My app claims it’s out of disk space, but I see there is plenty of space, what gives?

By default, every user should have a .sge_request file in their home directory.  This file contains a line like this:

-l h_fsize=10G

This limits the size of all created files to 10GB.  If you plan on creating larger files you should increase this limit, either in the .sge_request file before you start your qrsh session, or in the batch script you submit via qsub. From the command line,  you would start a qrsh session as follows:

qrsh  -l h_fsize=300G

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