How do I check my AFS quota usage? What should I do if I am over my AFS quota?
It is always a good idea to keep at least 5% of your AFS home directory clear to prevent problems with logging into Linux machines and running software. If you believe you are at or over your AFS quota, you can check by logging into a CAEN Windows computer and using SSH to connect to a Linux host (i.e. login.engin.umich.edu). Once you are logged in, you can type the following command to see how much of your quota you are using:
fs lq ~
You can then use the following command to determine which directories are taking up the most amount of space:
du -k ~ | more
This will list how much space, in KB, each directory it taking up. So, if it says ~/Public contains 1000, then your Public directory is taking up 1 MB of space. You can then descend into each directory and see which files are using the most space by simply typing:
ls -l
Here are a few common things that can consume your AFS space, and should be monitored closely:
- Core Files:
If you see a file named core in your home directory you can usually delete it. For more info please visit this FAQ. - Mozilla Cache:
To delete all of the temporary internet files used by Mozilla type:
rm -rf ~/.mozilla/uniqname/*/Cache - ~/.dt/Trash:
To delete all of these trash files type:
rm -rf ~/.dt/Trash
To see how much space your Trash is using type this command:
du -k ~/.dt/Trash - Request More Space:
You can request more umich.edu AFS space for your ITCS account. For more information, please visit this FAQ.
If you have any further problems, please stop by the CAEN Hotline or Contact CAEN.


