1 2 3 Previous Next 64 Replies Latest reply on Nov 9, 2014 10:57 PM by ErwinInfracontrol Branched to a new discussion.

    Event: Device Performance has deteriorated. I/O Latency increased

    Marc P Enthusiast

      Hi,

       

      Since upgrading to vSphere 5 I have noticed the following errore in our Events:

       

      Device naa.60a980004335434f4334583057375634 performance has deteriorated. I/O latency increased from average value of 3824 microseconds to 253556 microseconds.

       

      This is for different devices and not isolated to one.

       

      I'm not really sure where to start looking as the SAN is not being pushed as these messages even appear at 4am in the morning when nothing is happening.

       

      We are using a NetApp 3020C SAN.

       

      Any help or pointers appreciated.

        1 2 3 Previous Next