Nagios Support Forum

Posted: **Thu Feb 18, 2016 4:03 pm**

Is there a way to monitor network drive mappings from a server? I have a server that is running the NSClient++ and it keeps losing some drive mappings, server is 2012r2 windows. When they are no longer available I would like to be notified. I am coming up with blanks on how do accomplish this.

Posted: **Thu Feb 18, 2016 5:58 pm**

I am yet to play with this feature however I believe these are "remote drives"

http://docs.nsclient.org/reference/wind ... -drivesize

To check the size of all fixed and network drives and make sure they have at least 1gig free space:

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check_drivesize "crit=free<1g" drive=* "filter=type in ('fixed', 'remote')"
L     client OK: All drives ok
L     client  Performance data: 'C:\ free'=18GB;0;2;0;223 'C:\ free %'=8%;0;0;0;100 'D:\ free'=18GB;0;4;0;465 'D:\ free %'=3%;0;0;0;100 'M:\ free'=83GB;0;27;0;2746 'M:\ free %'=3%;0;0;0;100

To checking UNC Paths. Please note that I need to use \ to escape the back-slashes from check_nrpe you can escape using ‘ instead which is simpler:

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check_drivesize drive=\\\\medin-ds\\data\\ "crit=free<10%"
L     client CRITICAL: \\medin-ds\data\: 2.6TB/2.68TB used
L     client  Performance data: '\\medin-ds\data\ free'=83GB;0;274;0;2746 '\\medin-ds\data\ free %'=3%;0;9;0;100

Important

Please note that UNC paths are only avalible in each session meaning a user mounted share will not be visible to NSClient++ (since services run in their own session). But as long as NSClient++ can access the share it still works as long as you specify the UNC path. In other words the following will NOT work:

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check_drivesize drive=m:

But the following will:

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check_drivesize drive=\\myserver\\mydrive

In reality, the service runs as the system account. Even if you changed the service to run as the user account that has the mapped drive, that will be a different session and won't be a true reflection.

Perhaps a background powershell script could run as the logged on user. If it detects a drive mapping is lost it could log it to a text file. Then have another script that NSClient++ calls which can check this file and return the relevant result based on it's findings.

Posted: **Fri Feb 19, 2016 7:10 am**

I am not getting this to work.

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[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -t 55 -c check_drivesize -a "filter=type = 'fixed' and drive regexp '.*[C-Z].*'" "warn=free<15%" "crit=free<5%"
OK All 2 drive(s) are ok|'C:\ free'=22.90067GB;7.4997;2.4999;0;49.99804 'C:\ free %'=45%;14;4;0;100 'D:\ free'=25.30082GB;5.99955;1.99985;0;39.99706 'D:\ free %'=63%;14;4;0;100
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -t 55 -c check_drivesize -a "filter=type in ('fixed', 'remote') and drive regexp '.*[C-Z].*'" "warn=free<15%" "crit=free<5%"
OK All 2 drive(s) are ok|'C:\ free'=22.90074GB;7.4997;2.4999;0;49.99804 'C:\ free %'=45%;14;4;0;100 'D:\ free'=25.30082GB;5.99955;1.99985;0;39.99706 'D:\ free %'=63%;14;4;0;100
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -t 55 -c check_drivesize "crit=free<1g" drive=* "filter=type in ('fixed', 'remote')"
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.0973GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -c check_drivesize "crit=free<1g" drive=* "filter=type in ('fixed', 'remote')"
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.09703GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -c check_drivesize drive=\\cinfs05p.ws.wsfgrp.net\\enterprise_vol1
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.10531GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -c check_drivesize drive=\\\\cinfs05p.ws.wsfgrp.net\\enterprise_vol1
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.10522GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -c check_drivesize drive='\\wsl_prodimg.ws.wsfgrp.net'
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.10219GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0
[nagios@nagiosl1t libexec]$ ./check_nrpe -H imgqry1p -c check_drivesize drive=\\\\wsl_prodimg\\PRODIMG_VOL1
OK All 4 drive(s) are ok|'A:\ used'=0B;0;0;0;0 'C:\ used'=27.10209GB;39.99843;44.99823;0;49.99804 'C:\ used %'=54%;79;89;0;100 'D:\ used'=14.69624GB;31.99765;35.99736;0;39.99706 'D:\ used %'=36%;79;89;0;100 'E:\ used'=0B;0;0;0;0

All I get are the fixed drives, I am not getting any of the network mapped drives like M, O, and R.

Posted: **Fri Feb 19, 2016 3:12 pm**

What version of NSClient are you running? I can try to lab this one up.

Posted: **Fri Feb 19, 2016 3:45 pm**

I (0.4.3.131 2015-02-15)

Posted: **Sun Feb 21, 2016 5:39 pm**

Box293 wrote:Please note that UNC paths are only avalible in each session meaning a user mounted share will not be visible to NSClient++ (since services run in their own session). But as long as NSClient++ can access the share it still works as long as you specify the UNC path.

That comment from the Developers website says it all.

In think you are going to need to develop a solution like I described.

Posted: **Wed Feb 24, 2016 7:21 am**

Thanks. I'll see if I can come up with a powershell script to run as the user with mapped drives and output something like OK to a file for Nagios to monitor.

Posted: **Wed Feb 24, 2016 9:48 am**

Or you could just run NSCLient++ service with an account with permissions on the UNC path and monitor the full path instead of the mapped drive letter... I know I got this working somewhere.

Posted: **Wed Feb 24, 2016 10:53 am**

Thanks WillemDH!

Posted: **Wed Feb 24, 2016 11:26 am**

Yes, thanks WillemDH I'll give that a try.

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