Re: MIB design question

Managers need to use the zfsPoolStatusIndex to correlate the names in the
two tables - e.g.,

snmptable -Ci zfsVFSIOPSTable

will get you 3 columns:

index zfsOperReads zfsOperWrites

and then if you snmpwalk zfsPoolName, you can get the pool name that
corresponds to the index.

  Bill



On Fri, Aug 8, 2014 at 7:04 AM, Turbo Fredriksson <[email protected]> wrote:

> I'd like to bump this question - how exactly should one use AUGMENT?
>
> On Jul 23, 2014, at 1:42 AM, Turbo Fredriksson wrote:
>
> > On Jul 23, 2014, at 1:24 AM, Turbo Fredriksson wrote:
> >
> >> Yes, they are related.
> >
> > Hmm, even making 'zfsVFSIOPSEntry' augment 'zfsPoolStatusEntry' still
> > won't allow me to use 'zfsPoolName' in the sequence:
> >
> >      zfsVFSIOPSTable                  OBJECT-TYPE
> >        SYNTAX                         SEQUENCE OF ZFSVFSIOPSEntry
> >        MAX-ACCESS                     not-accessible
> >        STATUS                         current
> >        DESCRIPTION                    "A list of ZFS VFS IOPS status
> information.
> >                                        This table contains additional
> objects for
> >                                        the zfsPoolStatusTable."
> >        ::= { zfsStats 8 }
> >
> >        zfsVFSIOPSEntry                OBJECT-TYPE
> >          SYNTAX                       ZFSVFSIOPSEntry
> >          MAX-ACCESS                   not-accessible
> >          STATUS                       current
> >          DESCRIPTION                  "An entry containing ZFS ARC
> status values."
> >          AUGMENTS                     { zfsPoolStatusEntry }
> >          ::= { zfsVFSIOPSTable 1 }
> >
> >          ZFSVFSIOPSEntry             ::= SEQUENCE {
> >            zfsVFSIOPSIndex           CounterIndex,
> >
> >            zfsPoolName               DisplayString,
> >            zfsOperReads              Counter32,
> >            zfsOperWrites             Counter32
> >          }
> >
> >
> > BAYOUR-COM-MIB.txt:2215: SEQUENCE element #2 `zfsPoolName' is not a
> child node under `zfsVFSIOPSEntry'
> > BAYOUR-COM-MIB.txt:2215: warning: SEQUENCE element #3 `zfsOperReads'
> does not match order of columnar objects under `zfsVFSIOPSEntry'
> >
> >
> > Did I misunderstand something?
> >
> >
> > Removing the 'zfsPoolName' line, just gives me a broken table:
> >
> >       $ snmptable localhost zfsVFSIOPSTable
> >       SNMP table: BAYOUR-COM-MIB::zfsVFSIOPSTable
> >
> >        zfsOperReads zfsOperWrites
> >                   0             0
> >                   0             0
> >                   0             0
> >                   0             0
> >                   4             ?
> >             "test1"             ?
> >             "test2"             ?
> >             "test3"             ?
> >
> > I want the pool name 'testX' as the first column, zfsOper* as two and
> three...
> >
> >
> > Should I just NOT output the pool name in the script? Will 'everyone'
> understand
> > that the first line is related to the first line of the output of the
> > 'zfsPoolStatusTable'?
> >
> >
> >       $ snmptable localhost zfsPoolStatusTable
> >       SNMP table: BAYOUR-COM-MIB::zfsPoolStatusTable
> >
> >        zfsPoolName zfsPoolSize zfsPoolAlloc zfsPoolFree zfsPoolCap
> zfsPoolDedup zfsPoolHealth zfsPoolAltRoot zfsPoolUsedBySnaps zfsPoolUsed
> >              test1   429496729       967680   429496729          0
>   1.00        online              -                  0     1532928
> >              test2   429496729    137363456   214748364          0
>   1.00        online              -              22528   137977856
> >              test3   429496729       968704   429496729          0
>   1.00        online              -                  0     1536000
> >              test4    68681728       151552    68576870          0
>   1.00      degraded              -                  0      119808
>
>
>
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