Quota Allocation-Computing Services - Carnegie Mellon University

Quota Allocations

There is a maximum quota allotted to you for each of the areas listed below. To determine your quota usage, select the appropriate link.

* Those who are working on specific projects may request additional space through a Project Volume.

Tips for Managing Your Email and AFS Quotas

Email Quota

  • Store archives of old email messages to disk rather than on-line.
  • Store archives of project related email messages to disk rather than on-line.
  • Routinely clean out your Sent Mail and Spam folders, deleting messages you no longer need.

AFS Quota

  • To remove unwanted files, open a terminal window and use the rm command. Note that on a cluster Linux computer, dragging items into the trash and emptying it will NOT free up space in your quota. 
  • To determine how much AFS space you are using, enter the fs lq command.
  • To determine how much space in bytes each of your AFS directories is using, enter the du command. Note that the OldFiles directory is a read-only copy of your AFS directory and is its own storage space; OldFiles usage does not count against your AFS quota.
  • To view the size of each folder in your AFS directory in bytes, enter the du-k~ command. 
  • Caches stored by the programs you use often hog AFS space. Clearing or deleting the .Trash, .mozilla or .ccache directories will almost always recover a considerable amount of space.
  • To zip files, enter gzip file_or_foldername; to unzip a gzipped file, enter gunzip file_or_foldername.gz
  • To compress a file or folder enter: compress file_or_foldername; to decompress a file or folder enter uncompress file_or_foldername.Z
Note: For additional help with using these commands, please refer to the man pages within Unix.
Last Updated: 12/9/14