What should I do when I reach my quota?

Article ID: 398
Last updated: 01 Sep, 2026

When the amount of data in your NAS compute resources home directory or your NAS /nobackup directory exceeds the soft quota, you will receive an email informing you of your current usage and how much grace period remains.

It is expected that your data will occasionally exceed the soft quota, as needed. However, if your data still exceeds the soft quota after 14 days—or if it exceeds the hard quota—you must delete unneeded files and archive infrequently used files until the amount of data is below the soft limit. To archive files, transfer them to the Lou mass storage system.

Once you exceed your hard quota, you will receive the following PBS error when attempting to submit a new job:

qsub: Filesystem quota exceeded! Please reduce your usage or request an increase before submitting.

If you have a long-term need for higher quota limits, send a justification to support@nas.nasa.gov. Your request will be reviewed by management for approval.

For more information, including quota limits, see:

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