8 Replies Latest reply: Oct 3, 2013 5:06 PM by vasudev RSS

NetApp SNMP MIBs

NetApp Employee Powerboat Racer
Currently Being Moderated

Where do I find information on the NetApp SNMP MIBs and supported Data ONTAP versions?

  • Re: NetApp SNMP MIBs
    NetApp Employee Powerboat Racer
    Currently Being Moderated

    The NetApp SNMP MIBs are at doc/mib directory. For more information, see the SDK help  Getting started with the SDK > Version Matrix.

  • Re: NetApp SNMP MIBs
    hunterzzz Novice
    Currently Being Moderated

     

    I have a somewhat related question, but specifically regarding querying the device for total disk space in a volume. I am running the following command in order to poll the device for total space used by a volume:

     

     

    #> snmpwalk -c public -v 1 10.66.200.56 .1.3.6.1.4.1.789.1.5.4.1.3.5

     

     

    SNMPv2-SMI::enterprises.789.1.5.4.1.3.5 = INTEGER: -2147483648

     

     

    But it comes back negative whenever the volume in question is over 2TB. Is this a known issue?  Is there a work around?  When or how can i fix this? It is causing some monitoring problems that i am trying to work around using perl, but so far i am not having any luck.

     

     

    TIA

     

     

    • Re: NetApp SNMP MIBs
      adamfox Kart Racer
      Currently Being Moderated

       

      Until DOT 7.3, ONTAP only supports SNMP v1, and thus can only handle 32-bit values.  So you'll find if you look at the MIB file that many values that need more bits are split between high order and low order bits.  So to get the true value, you have to combine the 2 values to get the real value.

       

       

      Starting in ONTAP 7.3, ONTAP supports SNMP v3 which supports larger values.

       

       

       

       

       

      • Re: NetApp SNMP MIBs
        jwagner@ea.com Novice
        Currently Being Moderated

        I am having the same issue where a volume >= 2TB is reporting as negative. I have switched to v3 and I still have the same issue.

         

        What gives?

         

        I have Data ONTAP Release 7.3 on a netapp 3140 with the latest mib for this OnTap version.

         

        zenoss@ears-monitoring ~$ snmpwalk -v 3 -n "" -u USER  -l authNoPriv -A PASSWORD FILER_HOST -a Md5 1.3.6.1.4.1.789.1.5.4.1.17.75
        SNMPv2-SMI::enterprises.789.1.5.4.1.17.75 = INTEGER: -1349956220

         

        Jesse

         

        PS I don't see how "combining the  values" is a viable solution. What happens when we get to 4TB? or 8? How do we know many time we have rolled over. 

        PPS the base OID is SNMPv2-SMI, Could this hv e anything todo with it? Is there a seperate tree for v3?

        • Re: NetApp SNMP MIBs
          flank NetApp Employee Sprinter
          Currently Being Moderated

          You are looking at:

          dfLowUsedKBytes                          .1.3.6.1.4.1.789.1.5.4.1.17.76

           

          If you support v3, you should be able to query the 64-bit value instead:

          df64UsedKBytes                           .1.3.6.1.4.1.789.1.5.4.1.30.76

           

          ...

           

          If you want to continue using the low/high values for v1, here is the public report for a similar issue:

           

          Some entries in the Quota Table of the SNMP MIB, including but not necessarily
          limited to qrVKBytesLimit (snmp.1.3.6.1.4.1.789.1.4.5.1.5.1) are internally
          defined as uint4, which is an unsigned 32 bit integer.
          However the SNMP definition of INTEGER is a +- 2147483647 range.
          So when the internal count exceeds 2147483647, the displayed value will show as
          a negative number.
          
           
          Workaround: 
          
          Post process the value to produce an unsigned 32 bit integer.
          if (x < 0) x = 4294967296 + x
          
           
          Notes: 
          
          For file systems larger than 4TB the qrV2Table(.1.3.6.1.4.1.789.1.4.6) may be 
          used. Starting with ONTAP 6.5 the qrV2Table splits the snmp variables into 
          High 32bit and Low 32bit snmp INTEGERs.
          The equation to combine these is:
          if (Low >= 0) x = High * 2^32 + Low
          if (Low < 0)  x = (High + 1) * 2^32 + Low
  • Re: NetApp SNMP MIBs
    kvishal NetApp Employee Kart Racer
    Currently Being Moderated

    The MIBs are now moved out of SDK are not bundled as part of SDK.

    Please refer to this post http://communities.netapp.com/docs/DOC-1075#comment-1898

  • Re: NetApp SNMP MIBs
    vasudev NetApp Employee Novice
    Currently Being Moderated

    Details of MIBs and traps supported in C-Mode is documented in KB article - https://fieldportal.netapp.com/DirectLink.aspx?documentID=103771&contentID=156174

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