FortiAnalyzer back to functioning normally, without losing data?

If a hard disk fails on a FortiAnalyzer that supports software RAID, what should you do to bring the

FortiAnalyzer back to functioning normally, without losing data?
A . Hot swap the disk
B . Replace the disk and rebuild the RAID manually
C . Take no action if the RAID level supports a failed disk
D . Shut down FortiAnalyzer and replace the disk

Answer: D

Explanation:

https://kb.fortinet.com/kb/documentLink.do?externalID=FD46446#:~:text=On%20FortiAnalyzer%2FFortiManager%20devices%20that, to%20exchanging%20the%20hard%20disk.

If a hard disk on a FortiAnalyzer unit fails, it must be replaced. On FortiAnalyzer devices that support hardware RAID, the hard disk can be replaced while the unit is still running C known as hot swapping. On FortiAnalyzer units with software RAID, the device must be shutdown prior to exchanging the hard disk.

Reference: https://community.fortinet.com/t5/FortiAnalyzer/Technical-Note-How-to-swap-Hard-Disk-on-FortiAnalyzer/ta-p/194997?externalID=FD41397#:~:text=If%20a%20hard%20disk%20on,process%20known%20as%20hot%20swapping