I need to be able to monitor the temperature of a couple of servers remotely. Does anyone know of any free/cheap software that will monitor the server temp and email it or at least output it so that I can pick it up via blat?
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If you were running Linux
For CPU and board:
lm_sensors + NetMRG or Nagios
hddtemp or smartctl (smartmontools) + NetMRG or Nagios
Since you are running Windows, speedfan may be of some use.
Usually, server hardware will have temperature sensors pollable via IPMI. This is true back to all the servers I have, even generic brands, to about 2002... and is also true for my home PC.
On linux, you can access this information using the
ipmitool. Some servers also expose it to
snmp if you have the appropriate MIB for your vendor. Servers without an ipmi interface may expose the data through
On windows, you can use the ipmiutil project to access ipmi information... there are a variety of other ways to do it, and I'm not a windows admin so I can't tell you for sure what the best way is, but you might consider running the windows version of NRPE to provide secure access to the data for nagios.
Nagios and Zenoss are both extensible enough that you should be able to implement temperature monitoring easily, and they're both free.
If you want to be really simple just write a script that uses the lm_sensors tools and emails the answer, then schedule it with cron. Really, that's only a good course of action if you have just a couple of servers, but it is quick and easy to manage.
Depending on your servers there may be tools with them, or you can use SNMP too. I know the Dell PowerEdge's come with the web based servertools to alert on this sort of thing.
Try using Munin with this plugin. Works great.
You can try an inexpensive room monitor such as the one from Temperature Alert. We started using it after our air conditioner kept breaking down on us. Comparing this one to others was a no-brainer since this one is much less expensive. I wish I could customize the report graphs but it's still good.
Try using one of AKCP's computer room temperature monitors called the sensorProbe2. http://sensorprobe2.com/
They have a bundle that costs around $295 and you get a free network monitoring software.