graph your harddisk temperature

[klavs]

Hi guys,

Just wrote a small script to graph my harddisk temperature - a nice way to see how well they are doing - I found my discs going just outside of operating temperatures during backup

Documented it here - as this forum is not searchable by google - and everyone should be able to find this - this script can be used for more than just Cacti
http://vsen.dk/monitoring

Have fun.

[faked]

first of all - I'm not a native English speaker........


I found out another way to get your harddisk temperature, using the unix hddtemp program (visit http://www.guzu.net/linux/hddtemp.php - some binary packages available too)

First you have to allow your cacti user to get the drive temperature. I assume you have sudo:
* run visudo as root
* edit to get something like this (I'm monitoring two drives: /dev/hdc and /dev/hdd)

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www-data ALL=NOPASSWD:/usr/sbin/hddtemp -n /dev/hdc
www-data ALL=NOPASSWD:/usr/sbin/hddtemp -n /dev/hdd

* save and exit with <escape> <:> <wq>
* create a script hddtemp.sh in you /cacti/scripts/ dir:

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#!/bin/sh
#sudo /usr/sbin/hddtemp -n $1

this returns the actual temperature of the specified drive in degrees Celsius without unit within 2 seconds.
* save and exit
* now go to your cacti website, create a new data input method. Specify to call the script like this:

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path/to/cacti/cacti/scripts/hddtemp.sh <drivevar>

* save the data input method, enter it again and create an input field to enter the drive in the data source, and an output field to write the temperature to. Make sure to set the drive path input variable to be entered in the data source
* save.
* create a new data source for every drive, using the input method we just created. Specify the harddisk drive path like /dev/hdx (there has to be some way for scsi drives too)
* now create graphs to display your harddisk temperatures using the data sources you just created.
* have fun!

[EDIT]

view my results: http://eedenvan.demon.nl/cacti/graph.ph ... raph_id=19

[Guest]

That's exactly how I use

And then I've added this to my sudoers file:
Defaults syslog=auth
Defaults:<cactiuser> !syslog

to NOT log everytime cactiuser runs hdtemp.sh

[jeep05]

can I use the result of "acpi -t" in order to draw a grap ?

[jeep05]

exactly :

$ acpi -t | cut -b 21-24
51.0

[fvant]

I see this working locally, but how would i monitor hdtemps on remote machines ?

EDIT:
this script workd for me. Taking hostname and full device path (/dev/hde) as arguments.

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nc $1 7634 | sed -e 's/^|//' -e 's/||/\n/g' | awk -F \| --assign=drive=$2 '$1 == drive {print $3}'

[redcap]

I don't manage to get the hddtemp graphs working with the explanation above.
Does anybody have some templates available wich I can import?

Thanks in advance
Redcap

[gandalf]

Documented it here - as this forum is not searchable by google -

What about "+harddisk +temperature site:forums.cacti.net"?
Reinhard