diff --git a/FUSE-Mount.md b/FUSE-Mount.md
index ac06ddf..b17ae70 100644
--- a/FUSE-Mount.md
+++ b/FUSE-Mount.md
@@ -295,3 +295,11 @@ The issue is with samba.conf. If you see NT_STATUS_ACCESS_DENIED error, try to a
    force user = root
    force group = root
 ```
+
+
+### What does "df" output means?  ###
+```
+Size: total number of volumes * volume size limit
+Used: Logic Size of files * replication = physical disk size taken
+Available = Size - Used
+```
\ No newline at end of file