getting CMFCAC70W message with RC=003C in CMF Monitor PAS

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    PRODUCT:

    CMF MONITOR


    APPLIES TO:

    CMF Monitor all supported versions.



    QUESTION:

    Here are the messages we are getting in CMF Monitor PAS:

    CMFCAC70W TIME OUT ON DEVICE C909 DURING STATUS IDCSS01 CALL  CACHE IPM SAMPLER CA5H RC=003C
    CMFCAC53W SAMPLER SKIPPING THIS INTERVAL 19190 00356 DUE TO ERROR OR TIMEOUT, CACHE IPM SAMPLER CA5H


    Later, we see the following errors:

    CMFSDV86 IPM SAMPLER CA5 TERMINATED, RECORD ERROR X'00000008'
    CMFCAC54E SAMPLER TERMINATING DUE TO EXCESSIVE I/O ERRORS OR TIMEOUTS  CACHE IPM SAMPLER


    What is the cause? How to fix this?


    ANSWER:

     

      Message CMFCAC70W with RC=003C means the IBM Cache API timed out when trying to gather statistics for this device.  
      
      
      The Cache API is only called once per interval (at the end of the interval).  A device that has a long term reserve can trigger this.  You should look at what was happening to the device at the time.  
      
      
      Because the same error occurred for 3 consecutive intervals, the CMF CACHE sampler was terminated with the following error: 
      
        
       CMFSDV86 IPM SAMPLER CA5 TERMINATED, RECORD ERROR X'00000008'
    CMFCAC54E SAMPLER TERMINATING DUE TO EXCESSIVE I/O ERRORS OR TIMEOUTS  CACHE IPM SAMPLER
      
        
      
      Once a sampler terminates with an error like this, the sampler will no longer run and produce output data, either for SMF records or for the Data Collectors.  This affects only the sampler that received the error, not the others, the other samplers will continue to run and produce data.  
     
    To fix this, you will need to restart the sampler. 
      
      The only way to restart a failed sampler is to restart the IPM (or CPM) session the sampler was part of via a "MODIFY pasname,IPM=xx" command.  Doing this will stop all samplers (cutting short interval SMF records) and restart them, starting the new interval at that point, so you may end up with two short intervals with 15-30 seconds worth of data lost.  
     
    To prevent such an error, you should find out why the device is reserved for extended period of time. 
      
        

     


    Article Number:

    000170818


    Article Type:

    FAQ/Procedural



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