I keep getting disk latency e-mail alerts and they clear immediately?

I keep getting disk latency e-mail alerts and they clear immediately?

The message reads:

Disk Read Latency is 10822 Disk Read Latency (Millisecond), threshold value for this monitor is 50 Disk Read Latency (Millisecond)



However about 5 seconds later I get another e-mail to say the error has cleared. I get these around every 5 mins and it's very annoying. I can't set the limit much higher and I need to know what the error is. Thanks.

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