How can you eliminate some discovered filesystems?

[slydog]

We are running Zabbix 2.2.6 on RHEL 6 host. I added ^nfs$ to the @File systems for discovery regex because we need to monitor some NFS mounts but not all NFS mounts.

In particular we are picking up /mnt/<foo> and <bar>/.snapshot filesystems. These are not application filesystems, given the structuring of our environment. Is there a was to eliminate these from being detected at the LLD level while still detecting other ^nfs$ mounts?

[jan.garaj]

@File systems for discovery - is the best way. Just add another expressions with Result is FALSE (negative matching). POC:

^nfs$ Result is TRUE 
^.*<foo>.*$ Result it FALSE
^.*<bar>.*$ Result it FALSE

[slydog]

@File systems for discovery - is the best way. Just add another expressions with Result is FALSE (negative matching). POC:

^nfs$ Result is TRUE 
^.*<foo>.*$ Result it FALSE
^.*<bar>.*$ Result it FALSE

Adding another expresion this way is not working. LLD for Filesystem discovery uses #FSTYPE to discover the filesystems; while I am wanting to exclude certain filesystems based on their names (#FSNAME ??). As best I can tell one cannot mix #FSTYPE and #FSNAME in the same Discovery rule.

[jan.garaj]

Yes, good point about #FSTYPE. You need to create new regexp to exclude (Result is FALSE) unwanted #FSNAMEs. See filters in Discovery rule config. I have had similar problem with chroot filesystems - my solution:

[slydog]

jan.garaj

Thanks for your help. We will try this out.

[coreychristian]

Just to note, I believe you need to upgrade to 2.4.X to get the multiple filter options.

[jan.garaj]

Corey is right :-), you will need Zabbix 2.4.

https://www.zabbix.com/documentation/2.4/manual/introduction/whatsnew240#defining_multiple_filters_for_low_level_discovery

[waardd]

I'm trying to put together a filter for filesystems i dont want discoverd.

Is this the regexp i can use?


1 » (/var|/opt|/home|/boot) [Result is FALSE]

[coreychristian]

I'm trying to put together a filter for filesystems i dont want discoverd.

Is this the regexp i can use?


1 » (/var|/opt|/home|/boot) [Result is FALSE]

That looks pretty close to what I have.

^/(home/.*|work.*|p03|p02.*|p01.*)$

[waardd]

Looks like it is worki g indeed 😊

Maybe i can make it more flexible like you with ^ and $