Failing to write files

The most likely reason is that the location you are writing to (i.e. your home directory or project directory) has exceeded the allocated storage quota. To view your current quota usage, you can use the following commands:

To check your home directory quota, use the command

> userquota

and to check your primary group's quota, use the command

> groupquota

You can read more about these commands here: How can I check my storage quota?