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Host unusual disk IO
warning

Description Disk usage >80%. Check storage for issues or increase IOPS capabilities. Check storage for issues.
Query for 5m 
>>>
	
				
					
					
						rate
					
				
			
				
					(
				
			
				
					
				
			
				
					[5m]) > 0.8
Query Explanation

The query rate(node_disk_io_time_seconds_total[5m]) > 0.8 computes the average proportion of time the disk spent performing I/O over the past 5 minutes; if this proportion exceeds 0.8 (i.e., the disk is busy more than 80% of the time), the alert is triggered, signaling unusually high disk I/O.

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