NodeRAIDDiskFailure
warning

Description At least one device in RAID array on {{ $labels.instance }} failed. Array '{{ $labels.device }}' needs attention and possibly a disk swap.
Query
>>>
	
				
					
				
			
				
					{state="failed"} > 0

				
			
    
Query Explanation

The query node_md_disks{state="failed"} > 0 selects any RAID disk metric where the state label is "failed" and fires when its value is greater than zero, indicating that at least one disk in a RAID array on the instance has failed and requires attention.

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