Re: hrStorage doesn't show my partitions

permalink · #1 (**permalink**) 09-04-2007

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Hi Thomas,

This is an old server:
archer ~ # snmpwalk -V
NET-SNMP version: 5.4
archer ~ # snmpwalk -v3 -a MD5 -A '<A PASSWORD>' -l authNoPriv -u '<AN
USER>' <A HOST> 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.8 = STRING: Shared memory
HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /sys
HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /proc/bus/usb
HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /proc/sys/fs/binfmt_misc
HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /proc/fs/nfs
HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /var/lib/nfs/rpc_pipefs

And this is a new one:
load0-1 ~ # snmpwalk -V
NET-SNMP version: 5.4
load0-1 ~ # snmpwalk -v3 -a MD5 -A '<A PASSWORD>' -l authNoPriv -u '<AN
USER>' <A HOST> 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.8 = STRING: Shared memory
HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
load0-1 ~ #

Very very strange. Surely both of them have the very same version. There
must be something wrong, something I didn't do right on the second time
because both servers share the same server version.

When I strace'd snmpd on both servers while doing the snmpwalk, the
differences are:
1 - The old one tries do open /etc/mtab, the new one doesn't.
2 - The new one tries to statfs("") while the old one will do statfs("/"),
etc...

Because I need all the new servers to have exactly the same versions always
and because I did not deployed my distributed upgrade system yet, I cannot
upgrade net-snmp right now unfortunately.

Any other tip?

Best regards,
Daniel Colchete

On 9/4/07, Thomas Anders <thomas.anders@blue-cable.de> wrote:
>
> Daniel van Ham Colchete wrote:
> > I'm using net-snmp+cacti to monitor some servers I have. I just finished
> > installing 10 new ones, but hrStorage will not report my disks to me at
> > those 10 new servers.
> >
> > With an old server, when I 'snmpwalk|grep hrStorageDescr' there I have:
> > 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.8 = STRING: Shared memory
> > HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
> > HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
> > HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /sys
> > HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /proc/bus/usb
> > HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /proc/sys/fs/binfmt_misc
> > HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /proc/fs/nfs
> > HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /var/lib/nfs/rpc_pipefs
> >
> > But with the new ones:
> > 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.8 = STRING: Shared memory
> > HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
> >
> > All servers are using net-snmp version 5.4. All of them are Gentoo
> linuxes.
>
> I take it that the "old servers" are *not* running 5.4? Because at least
> the /sys and /proc/* entries are expected to get skipped because they're
> pseudo file systems.
>
> But at least the entry for "/" should be there. FWIW, it works fine for
> me on SuSE Linux 10.2 with 5.4.x SVN. Can you try with 5.4.1?
>
>
> +Thomas
>
> --
> Thomas Anders (thomas.anders at blue-cable.de)
>

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Hi Thomas, This is an old server: archer ~ # snmpwalk -V NET-SNMP version: 5.4 archer ~ # snmpwalk -v3 -a MD5 -A '<A PASSWORD>' -l authNoPriv -u '<AN USER>'  <A HOST> 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.8 = STRING: Shared memory HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: / HOST-RESOURCES-MIB::
hrStorageDescr.32 = STRING: /sys HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /proc/bus/usb HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /proc/sys/fs/binfmt_misc HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /proc/fs/nfs
 HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /var/lib/nfs/rpc_pipefs And this is a new one: load0-1 ~ # snmpwalk -V NET-SNMP version: 5.4 load0-1 ~ # snmpwalk -v3 -a MD5 -A '<A PASSWORD>' -l authNoPriv -u '<AN USER>'  <A HOST> 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.8 = STRING: Shared memory HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space load0-1 ~ # Very very strange. Surely both of them have the very same version. There must be something wrong, something I didn't do right on the second time because both servers share the same server version.
 When I strace'd snmpd on both servers while doing the snmpwalk, the differences are: 1 - The old one tries do open /etc/mtab, the new one doesn't. 2 - The new one tries to statfs("") while the old one will do statfs("/"), etc...
 Because I need all the new servers to have exactly the same versions always and because I did not deployed my distributed upgrade system yet, I cannot upgrade net-snmp right now unfortunately. Any other tip?
 Best regards, Daniel Colchete <div>On 9/4/07, Thomas Anders <<a href="mailto:thomas.anders@blue-cable.de">thomas.anders@blue-cable.de</a>> wrote:
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Daniel van Ham Colchete wrote: > I'm using net-snmp+cacti to monitor some servers I have. I just finished
 > installing 10 new ones, but hrStorage will not report my disks to me at > those 10 new servers. > > With an old server, when I 'snmpwalk|grep hrStorageDescr' there I have: > 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.8 = STRING: Shared memory > HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space > HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: / 
> HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /sys > HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /proc/bus/usb > HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /proc/sys/fs/binfmt_misc > HOST-RESOURCES-MIB::
hrStorageDescr.35 = STRING: /proc/fs/nfs > HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /var/lib/nfs/rpc_pipefs > > But with the new ones: > 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.8 = STRING: Shared memory > HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space > > All servers are using net-snmp version 5.4. All of them are Gentoo linuxes. I take it that the "old servers" are *not* running
5.4? Because at least the /sys and /proc/* entries are expected to get skipped because they're pseudo file systems. But at least the entry for "/" should be there. FWIW, it works fine for me on SuSE Linux
10.2 with 5.4.x SVN. Can you try with 5.4.1? +Thomas -- Thomas Anders (thomas.anders at <a href="http://blue-cable.de">blue-cable.de</a>) </blockquote></div> 

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