IO monitoring in Nagios xi

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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: IO monitoring in Nagios xi

Post by kalyanpabolu »

Hello,

I wanted to understand what threshold it is taking for the drives?
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vtrac
Posts: 903
Joined: Tue Oct 27, 2020 1:35 pm

Re: IO monitoring in Nagios xi

Post by vtrac »

Hi,
What is the output of this command? .... please upload outputs.

Code: Select all

curl -k -v "https://x.x.x.x:5693/api/disk/physical/PhysicalDrive0/?token=<yourToken>"
Based on the output above, you can apply that to the "check_ncpa.py" script with the "-M" option.


Regards,
Vinh
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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: IO monitoring in Nagios xi

Post by kalyanpabolu »

Hello,

Below is the output:

[root@HO1-NAGIOSxi ~]# curl -k -v "https://10.1.0.22:5693/api/disk/physica ... Lhoub.2018"
* Trying 10.1.0.22...
* TCP_NODELAY set
* Connected to 10.1.0.22 (10.1.0.22) port 5693 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: C=US; ST=Minnesota; L=St. Paul; O=Nagios Enterprises, LLC; OU=Development; CN=JA-FILESRV1
* start date: Jul 16 14:19:23 2020 GMT
* expire date: Jul 14 14:19:23 2030 GMT
* issuer: C=US; ST=Minnesota; L=St. Paul; O=Nagios Enterprises, LLC; OU=Development; CN=JA-FILESRV1
* SSL certificate verify result: self signed certificate (18), continuing anyway.
> GET /api/disk/physical/PhysicalDrive0/?token=CH@Lhoub.2018 HTTP/1.1
> Host: 10.1.0.22:5693
> User-Agent: curl/7.61.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: application/json
< Content-Length: 471
< Access-Control-Allow-Origin: *
< X-Frame-Options: SAMEORIGIN
< Content-Security-Policy: frame-ancestors 'self'
< Date: Wed, 14 Apr 2021 04:18:10 GMT
<
{
"PhysicalDrive0": {
"read_time": [
3348,
"ms"
],
"read_bytes": [
23.34,
"GiB"
],
"write_count": [
2476796,
"c"
],
"write_time": [
1358,
"ms"
],
"write_bytes": [
34.2,
"GiB"
],
"read_count": [
1071000,
"c"
]
}
* Connection #0 to host 10.1.0.22 left intact
}[root@HO1-NAGIOSxi ~]#
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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: IO monitoring in Nagios xi

Post by kalyanpabolu »

Hello,

I was checking for other plugins and this one seems to be better:

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

Can someone please help me the exact command?
Also, will it work for NCPA latest version?
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vtrac
Posts: 903
Joined: Tue Oct 27, 2020 1:35 pm

Re: IO monitoring in Nagios xi

Post by vtrac »

Hi,
I have downloaded the file and also attached to this post.

However, please change the name to "check_ms_win_disk_load.ps1" once you pick it up since the forum does not let me upload ".ps1" file.

Here what you do:
- Put the "check_ms_win_disk_load.ps1" file under the (below) folder on your remote Windows machine that has NCPA agent installed:

Code: Select all

C:\Program Files (x86)\Nagios\NCPA\plugins
Now, you can test it by running the below (ONE line) command on your Nagios xi command prompt:
NOTE: "x.x.x.x" is your remote IP and "yourToken' is your NCPA's token defined in "ncpa.cfg".

Code: Select all

/usr/local/nagios/libexec/check_ncpa.py -H x.x.x.x-t 'yourToken' -P 5693 -M plugins/check_ms_win_disk_load.ps1 -a '-dl C'
Here's an example of my test:

Code: Select all

/usr/local/nagios/libexec/check_ncpa.py -H 192.168.254.149 -t 'VT9900' -P 5693 -M plugins/check_ms_win_disk_load.ps1 -a '-dl C'


Here are the outputs:

OK: Drive C: Avg of 2 samples: {Rate (Read: 0.00000MB/s)(Write: 0.13468MB/s)} {Avg Nr of (Reads: 0.00000r/s)(Writes: 6.40290w/s)} {Latency (Read: 0.00000ms)(Write: 0.10900ms)} {Queue Length (Read: 0.00000ql)(Write: 0.00140ql)} | 'Read_Latency'=0.00000ms 'Write_Latency'=0.10900ms 'Read_Queue'=0.00000ql 'Write_Queue'=0.00140ql 'Number_of_Reads'=0.00000r/s 'Number_of_Writes'=6.40290w/s 'Read_Rate'=0.00000MB/s 'Write_Rate'=0.13468MB/s
Also, here are the HELP options I found inside the script which you can try:

Code: Select all

check_ms_windows_disk_load.ps1:
This script is designed to monitor Microsoft Windows disk load.
Arguments:
    -H 	 | --Hostname			=> Optional hostname of remote system, default is localhost, not yet tested on remote host.
    -dl  | --DiskLetter			=> Diskletter to get data from.
    -rqw | --ReadQueueWarn  	=> Warning threshold for read queue length.
    -rqc | --ReadQueueCrit		=> Critical threshold for read queue length.
    -wqw | --WriteQueueWarn  	=> Warning threshold for write queue length.
    -wqc | --WriteQueueCrit		=> Critical threshold for write queue length.
    -ms  | --MaxSamples 		=> Amount of samples to take.
    -h   | --Help 				=> Print this help output.
It is best that you play with the above options to get what you wanted out of this tool.

Since this package came from Nagios Exchange, we do not support it.
We will try to help you as much as we can, base on our knowledge as this is my very first time trying it.
Please contact the owner of this tool, if you need more info or suggestions.


Best Regards,
Vinh
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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: IO monitoring in Nagios xi

Post by kalyanpabolu »

Hello,

Thank you so much for your help.
It is working as expected.

Could you please help me understand the threshold values it is taking?
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vtrac
Posts: 903
Joined: Tue Oct 27, 2020 1:35 pm

Re: IO monitoring in Nagios xi

Post by vtrac »

Hi,
I searched and hopefully the below URL(s) can give you more details.

https://github.com/OutsideIT/check_ms_win_disk_load
https://outsideit.net/monitoring-windows-disk-load/


Best Regards,
Vinh
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kalyanpabolu
Posts: 246
Joined: Fri Jul 03, 2020 4:18 am

Re: IO monitoring in Nagios xi

Post by kalyanpabolu »

Hello,

We need to place this script on the target servers. I am using this for Disk IO monitoring for Windows servers. I am placing this script on all servers.
Could you please help me to understand if this script can create any performance issues on Windows servers?
Nagios would be accessing the script every 15 minutes which means it will run every 15 minutes. Will that create any impact on Windows servers performance?

Thanks in advance!!
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vtrac
Posts: 903
Joined: Tue Oct 27, 2020 1:35 pm

Re: IO monitoring in Nagios xi

Post by vtrac »

Hi kalyanpabolu,
How are you doing?
I think this script is very light weight and fast, which should not put any load on your Windows server.

Best Regards,
Vinh
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