Chapter 10 Install and System Administration for FortiOS 5.0 : Using the web-based manager : Dashboard : RAID monitor widget
  
RAID monitor widget
The RAID Monitor widget displays the current state of the RAID array and each RAID disk. This widget does not display unless the FortiGate unit has more than one disk installed and is not available for FortiOS Carrier.
Array status icon
Displays the status of the RAID array.
Green with a check mark shows a healthy RAID array.
Yellow triangle shows the array is in a degraded state but it is still functioning. A degraded array is slower than a healthy array. Rebuild the array to fix the degraded state.
A wrench shows the array is being rebuilt.
Positioning the mouse over the array status icon displays a text message of the status of the array.
Disk status icon
There is one icon for each disk in the array.
Green with a check mark shows a healthy disk.
Red with an X shows the disk has failed and needs attention.
Positioning the mouse over the disk status icon displays the status of the disk, and the storage capacity of the disk.
RAID Level
The RAID level of this RAID array. The RAID level is set as part of configuring the RAID array.
Status bar
The bar shows the percentage of the RAID array that is currently in use.
Used/Free/Total
Displays the amount of RAID array storage that is being used, the amount of storage that is free, and the total storage in the RAID array. The values are in gigabytes.