[gpfsug-discuss] gpfs mount point not visible in snmp hrStorageTable

Jan-Frode Myklebust janfrode at tanso.net
Wed Nov 7 11:20:37 GMT 2018


Looking at the CHANGELOG for net-snmp, it seems it needs to know about each
filesystem it's going to support, and I see no GPFS/mmfs. It has entries
like:

      - Added simfs (OpenVZ filesystem) to hrStorageTable and hrFSTable.
      - Added CVFS (CentraVision File System) to hrStorageTable and
      - Added OCFS2 (Oracle Cluster FS) to hrStorageTable and hrFSTable
      - report gfs filesystems in hrStorageTable and hrFSTable.


and also it didn't understand filesystems larger than 8 TB before version
5.7.

I think your best option is to look at implementing the GPFS snmp agent
agent
https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.2/com.ibm.spectrum.scale.v5r02.doc/bl1adv_snmp.htm
-- and see if it provides the data you need -- but it most likely won't
affect the hrStorage table.

And of course, please upgrade to something newer than v4.1.x. There's lots
of improvements on monitoring in v4.2.3 and v5.x (but beware that v5
doesn't work with RHEL6).


  -jf

On Wed, Nov 7, 2018 at 9:05 AM Henrik Cednert (Filmlance) <
henrik.cednert at filmlance.se> wrote:

> Hello
>
> I will try my luck here. Trying to monitor capacity on our gpfs system via
> observium. For some reason hrStorageTable doesn’t pick up that gpfs mount
> point though. In diskTable it’s visible but I cannot use diskTable when
> monitoring via observium, has to be hrStorageTable (I was told by observium
> dev). Output of a few snmpwalks and more at the bottom.
>
> Are there any obvious reasons for Centos 6.7 to not pick up a gpfs
> mountpoint in hrStorageTable? I’m not that snmp, nor gpfs, savvy so not
> sure if it’s even possible to in some way force it to include it in
> hrStorageTable…?
>
> Apologies if this isn’t the list for questions like this. But feels like
> there has to  be one or two peeps here monitoring their systems here. =)
>
>
> All these commands ran on that host:
>
> df -h | grep ddnnas0
> /dev/ddnnas0          1.7P  913T  739T  56% /ddnnas0
>
>
> mount | grep ddnnas0
> /dev/ddnnas0 on /ddnnas0 type gpfs (rw,relatime,mtime,nfssync,dev=ddnnas0)
>
>
> snmpwalk -v2c -c secret localhost hrStorageDescr
> HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: Physical memory
> HOST-RESOURCES-MIB::hrStorageDescr.3 = STRING: Virtual memory
> HOST-RESOURCES-MIB::hrStorageDescr.6 = STRING: Memory buffers
> HOST-RESOURCES-MIB::hrStorageDescr.7 = STRING: Cached memory
> HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
> HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
> HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /dev/shm
> HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /boot
> HOST-RESOURCES-MIB::hrStorageDescr.37 = STRING: /boot-rcvy
> HOST-RESOURCES-MIB::hrStorageDescr.38 = STRING: /crash
> HOST-RESOURCES-MIB::hrStorageDescr.39 = STRING: /rcvy
> HOST-RESOURCES-MIB::hrStorageDescr.40 = STRING: /var
> HOST-RESOURCES-MIB::hrStorageDescr.41 = STRING: /var-rcvy
>
>
> snmpwalk -v2c -c secret localhost dskPath
> UCD-SNMP-MIB::dskPath.1 = STRING: /ddnnas0
> UCD-SNMP-MIB::dskPath.2 = STRING: /
>
>
> yum list | grep net-snmp
> Failed to set locale, defaulting to C
> net-snmp.x86_64                          1:5.5-60.el6
>   @base
> net-snmp-libs.x86_64                     1:5.5-60.el6
>   @base
> net-snmp-perl.x86_64                     1:5.5-60.el6
>   @base
> net-snmp-utils.x86_64                    1:5.5-60.el6
>   @base
> net-snmp-devel.i686                      1:5.5-60.el6
>   base
> net-snmp-devel.x86_64                    1:5.5-60.el6
>   base
> net-snmp-libs.i686                       1:5.5-60.el6
>   base
> net-snmp-python.x86_64                   1:5.5-60.el6
>   base
>
>
> Cheers and thanks
>
> --
> Henrik Cednert  */ * + 46 704 71 89 54  */*  CTO  */ * *Filmlance*
> Disclaimer, the hideous bs disclaimer at the bottom is forced, sorry.
> ¯\_(ツ)_/¯
>
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