Re: Exclude notification for the disk /dev

Hi Yusufdeen,

e.g. from my own /etc/opennms/thresholds.xml

     <group name="netsnmp" rrdRepository="/var/lib/opennms/rrd/snmp/">
...
         <threshold
             description="Trigger an alert when the percentage of inodes used on any disk (excluding the specified special paths) reaches or goes above 90% for two consecutive measurement intervals"
             type="high" ds-type="dskIndex" value="90.0" rearm="75.0"
             trigger="2" ds-label="ns-dskPath" filterOperator="and" ds-name="ns-dskPercentNode">
             <resource-filter field="ns-dskPath">^(?!(/proc|/sys|/dev/pts|/run|/home|/mnt/home|/var/lib/nfs/rpc_pipefs)).*$</resource-filter>
             <resource-filter field="ns-dskDevice">^(?!(/dev/loop)).*$</resource-filter>
         </threshold>
....
     </group>

You should be able to modify your own thresholds in a similar way to do 
a RegEx match of paths or devices to exclude... Note that we don't 
exclude /dev but do exclude /dev/pts

I'm actually a bit puzzled about your situation and wonder if you're 
trying to solve the right problem... On modern Linux systems /dev is a 
special 'devfs' filesystem and shouldn't be subject to disk space problems.

Hope this helps

Regards

Jonathan



On 04/09/18 10:25, Yusufdeen wrote:
> Dear Friends,
>
> I want to exclude the notification for the drive "/dev".Many of the 
> server have /dev storage.it <http://storage.it>'s almost reaches the 
> disk percentage 95%.We have received couple of notification for those 
> server.
>
> High threshold exceeded for SNMP datasource hrStorageUsed / 
> hrStorageSize * 100.0 on interface 172.17.250.55, parms: label="/dev" 
> ds="hrStorageUsed / hrStorageSize * 100.0" description="Trigger an 
> alert when the percentage of disk space used reaches or goes above 90% 
> for two consecutive measurement intervals (only for disks of type 
> hrStorageFixedDisk, such as a locally attached or USB-attached hard 
> disk)" value="100" instance="34" instanceLabel="dev" 
> resourceId="node[48].hrStorageIndex[dev]" threshold="95.0" trigger="2" 
> rearm="90.0"
>
> Could you please tell how to exclude/avoid  /dev disks notification/alert.
>
> *Thanks & Regards*
> *Yusuf*
>
>
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