Configure a File System for Quotas  

Edit /etc/vfstab so that quotas are activated each time the file system is mounted, and create a quotas file.

"How to Configure File Systems for Quotas"

Set Up Quotas for a User  

Use the edquota command to create disk and inode quotas for a single user account.

"How to Set Up Quotas for a User"

Set Up Quotas for Multiple Users  

Optional. Use edquota to apply prototype quotas to other user accounts.

"How to Set Up Quotas for Multiple Users"

Check for Consistency  

Use the quotacheck command to compare quotas to current disk usage for consistency on one or more file systems.

"How to Check Quota Consistency"

Turn Quotas On 

Use the quotaon command to initate quotas on one or more file systems.

"How to Turn Quotas On"