[Nagiosplug-devel] additional function for check_disk [Virus checked]

[Matthias.Eble at kaufland.de]

Hi list,

 at the moment, check_disk returns a state != STATE_OK if any of the 
monitored filesystems has less than -w or -c freespace.

In our case, this doesn't meet our needs, since our Oracle databases use 
more than just one filesystem to store their data.
So if there are n data-volumes available, it doesn't matter if one or n-1 
volumes get filled 100% as long as one volume remains beyond
the warning level. 

I've got three approaches for solve this problem.

First: 
Introduce an option like -g (--group) followed by a comma_seperated_list 
of partitions/lvols/mountpoints which are to group.
 

Second:
Use a own nrpe command for every group of filesystems and introduce a flag 
like -g (in addition to multiple -p options) to tell check_disk to return 
warn/error if all
filesystems monitored by this command get full

Third:
Build an ugly shellscript which executes check_disk for every 
datafilesystem and return != 0 if all of these checks return !=0.


A further parameter could be sth like minimum_filesystems_ok to decide if 
the state is ok if 1,2,3,... filesystems of a group have more than -w/-c 
free space.


What do you think about it?
Is the check_disk plugin is the right place to reproduce a functionality 
like this.

Does anybody know applications like Oracle which use more than one 
filesystems for the same purpose?


Thanks a lot

Matthias