Updated Installation (markdown)

Installation.md

@@ -316,6 +316,19 @@ cleanup script every day at 3 AM.
 
 ## Setup Workers and Environments
 
+*Before you get started:*
+If you want to use disk quotas (recommended), you will need a FS that supports
+quotas. You will probably need to enable them in `fstab` adding `usrquota,grpquota`
+to mount parameters (do not forget to remount/reboot). After that, you should
+install quota tool and activate quotas (something like this):
+
+```
+#> yum install quotatool
+#> mount -o remount /
+#> quotacheck -mavug
+#> quotaon --all
+```
+
 ### Worker configuration
 
 Worker is ready to be executed in multiple instances. Each instance has config