diff --git a/pages/linux/mdadm.md b/pages/linux/mdadm.md
index 4ff47b73f..daaf85183 100644
--- a/pages/linux/mdadm.md
+++ b/pages/linux/mdadm.md
@@ -5,24 +5,28 @@
 
 - Create array:
 
-`mdadm --create {{/dev/md/MyRAID}} --level {{raid_level}} --raid-devices {{number_of_disks}} {{/dev/sdXN}}`
+`sudo mdadm --create {{/dev/md/MyRAID}} --level {{raid_level}} --raid-devices {{number_of_disks}} {{/dev/sdXN}}`
 
 - Stop array:
 
-`mdadm --stop {{/dev/md0}}`
+`sudo mdadm --stop {{/dev/md0}}`
 
 - Mark disk as failed:
 
-`mdadm --fail {{/dev/md0}} {{/dev/sdXN}}`
+`sudo mdadm --fail {{/dev/md0}} {{/dev/sdXN}}`
 
 - Remove disk:
 
-`mdadm --remove {{/dev/md0}} {{/dev/sdXN}}`
+`sudo mdadm --remove {{/dev/md0}} {{/dev/sdXN}}`
 
 - Add disk to array:
 
-`mdadm --assemble {{/dev/md0}} {{/dev/sdXN}}`
+`sudo mdadm --assemble {{/dev/md0}} {{/dev/sdXN}}`
 
 - Show RAID info:
 
-`mdadm --detail {{/dev/md0}}`
+`sudo mdadm --detail {{/dev/md0}}`
+
+- Reset disk by deleting RAID metadata:
+
+`sudo mdadm --zero-superblock {{/dev/sdXN}}`