Nagios Support Forum

Hello Experts,

Is there any plugin available to monitor Disk I/O for all the disk without supplying parameter -d in it. I want to monitor all the Disk I/O on the servers using single command. I dont want to go on every server and check the device disk name. I want to monitor it using SNMP. Please suggest..

Thanks..

Would this plugin work for you?
https://exchange.nagios.org/directory/P ... MP/details

I already configured this plugin but here we have to tell the plugin using -d option which disk we need to monitor

I want it in the way that it should not ask me which disk to monitor. It should monitor all the disk present on the server.

Thanks for your help

Have you taken a look at the following?
https://exchange.nagios.org/directory/P ... mp/details
This plugin monitors free space and can alert when the free space percentage descends too low. You might have to tinker with it to get it to work - as per the comment in exchange.

nikonier wrote: Hi,
after installing the plugin I got an error:
(Service check did not exit properly)

after some "googling" I modified my entry in the commands.cfg:
command_line /usr/bin/perl $USER1$/check_hd $HOSTADDRESS$ public $ARG1$ $ARG2$ $ARG3$

everything works, but I don't like the output:
OK: hd C in use 5.19659161907092 perc and 529.744556427002 GB free w-40 c-60

so I did some more modifications. edit the plugin check_hd:
around Line 72:
$freespace=$fullsize1 - $usedsize1;
$freespace=$freespace / 1024 / 1024 / 1024;
$freespace = sprintf("%.2f", $freespace);
$percfilled=$usedsize1 * 100 / $fullsize1;
$percfilled = sprintf("%.2f", $percfilled);

ADD the commands with the sprintf command.

output now:
OK: hd C in use 5.20 perc and 529.74 GB free w-40 c-60

regards,
Juergen

Hello Sir,

i dont want to monitor free space on the HDD. I want to monitor Disk I/O on all the disk.

I was not able to find a SNMP plugin that does that, but I found a bash script, that seems to work fine.

https://exchange.nagios.org/directory/P ... ks/details

Hello Sir,

Yes this two scripts if combined are pulling up all the HDD's but I cannot view the I/O of remote server

for example If I need to check disk stat of remote machine it gives me message using -H IP address

/usr/local/nagios/libexec/check_diskstat.sh: line 154: [: -H: integer expression expected
/usr/local/nagios/libexec/check_diskstat.sh: line 165: [: -H: integer expression expected
summary: 3 io/s, read 0 sectors (0kB/s), write 9728 sectors (35kB/s) in 138 seconds | tps_/dev/sda=3io/s;;; read_/dev/sda=0b/s;;; write_/dev/sda=36092b/s;;;
/dev/sr0: /usr/local/nagios/libexec/check_diskstat.sh: line 144: [: -H: integer expression expected
/usr/local/nagios/libexec/check_diskstat.sh: line 154: [: -H: integer expression expected
/usr/local/nagios/libexec/check_diskstat.sh: line 165: [: -H: integer expression expected
summary: 0 io/s, read 0 sectors (0kB/s), write 0 sectors (0kB/s) in 1226 seconds | tps_/dev/sr0=0io/s;;; read_/dev/sr0=0b/s;;; write_/dev/sr0=0b/s;;;
/dev/sr1: /usr/local/nagios/libexec/check_diskstat.sh: line 144: [: -H: integer expression expected
/usr/local/nagios/libexec/check_diskstat.sh: line 154: [: -H: integer expression expected
/usr/local/nagios/libexec/check_diskstat.sh: line 165: [: -H: integer expression expected
summary: 0 io/s, read 0 sectors (0kB/s), write 0 sectors (0kB/s) in 1225 seconds | tps_/dev/sr1=0io/s;;; read_/dev/sr1=0b/s;;; write_/dev/sr1=0b/s;;;

I am running the command
./check_all_diskstat.sh -H X.X.X.X

But I think the script
check_diskstat will accept -H option

Any Idea about how to pass -H option to check_diskstat combining these two scripts.

I've modified the check_diskio_ucd script to do what you want, try the attached version and let me know what you think.

Example command for all disks:
For specific disks:

You are correct. The plugin works only locally.

You could use NRPE to check the remote machine. Copy both scripts to the remote box, set up a command in the common.cfg (or nrpe.cfg), for example: Restart xinetd: and test it from the nagios server: If you don't want to install NRPE on the remote box, you could try ssax's solution.