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+#mdadm
+
+> RAID management utility
+
+- create array
+
+`mdadm --create {{/path/to/raid_device_file}} --level {{ raid level }} --raid-devices {{ number of disks}} {{/path/to/disk_device_file}}`
+
+- stop array
+
+`mdadm -S {{/path/to/raid_device_file}}`
+
+- mark disk as failed
+
+`mdadm {{/path/to/raid_device_file}} -f {/path/to/disk_device_file{}}`
+
+- remove disk
+
+`mdadm {{/path/to/raid_device_file}} -r {/path/to/disk_device_file{}}`
+
+- add disk to array
+
+`mdadm {{/path/to/raid_device_file}} -a {/path/to/disk_device_file{}}`
+
+- show RAID info
+
+`mdadm -D {{/path/to/raid_device_file}}`