Am getting some I/O latency warnings
6/16/2014 2:20:50 AM Device eui.4b8369976c4e0e00 performance has deteriorated. I/O latency increased from average value of 3979 microseconds to 100228 microseconds.
6/15/2014 4:20:28 PM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2724 microseconds to 54642 microseconds.
6/15/2014 1:20:13 PM Device eui.4b8369976c4e0400 performance has deteriorated. I/O latency increased from average value of 3858 microseconds to 81184 microseconds.
6/15/2014 10:20:42 AM Device eui.4b8369976c4e0e00 performance has deteriorated. I/O latency increased from average value of 3960 microseconds to 118930 microseconds.
6/15/2014 3:20:35 AM Device eui.4b8369976c4e0e00 performance has deteriorated. I/O latency increased from average value of 3953 microseconds to 84448 microseconds.
6/14/2014 10:20:20 AM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2629 microseconds to 52648 microseconds.
6/14/2014 8:20:24 AM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2623 microseconds to 53064 microseconds.
6/14/2014 7:20:38 AM Device eui.4b8369976c4e0300 performance has deteriorated. I/O latency increased from average value of 3039 microseconds to 84512 microseconds.
6/14/2014 12:20:10 AM Device eui.4b8369976c4e0e00 performance has deteriorated. I/O latency increased from average value of 3919 microseconds to 99749 microseconds.
6/13/2014 11:20:22 PM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2591 microseconds to 53645 microseconds.
6/13/2014 10:20:28 PM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2588 microseconds to 53360 microseconds.
6/13/2014 8:20:21 PM Device eui.4b8369976c4e0600 performance has deteriorated. I/O latency increased from average value of 2579 microseconds to 59864 microseconds.
Is it normal.