[tech] [committee] Temperature Monitoring in Server Room [repost]

[Susie Johnston]

Also, there is no reason we can’t have both member-made and industry standard solutions running at the same time. That’s how new solutions come about :)
E.g. dropbear
(Or on a tiny scale my weather chart I wrote many years ago that i still find useful http://susie.ucc.asn.au/weather/ )

> On 19 Mar 2019, at 3:52 pm, Melissa Star <melissa at netexperts.com.au> wrote:
> 
> Hi James,
> 
>> I am explicitly going to leave this for someone else to set up, my 
>> recommendation is a new VM, (although you could do a container) since it 
>> requires PHP 7.1.3 at a minimum.
> 
> Isn't UCC a do-ocracy?
> 
> I'm sure there are more standard ways, for example, to dispense drinks or maintain club membership records.
> 
> And we could be using Microsoft Word or even OpenOffice to take minutes and SharePoint or perhaps OwnCloud to maintain records.
> 
> Except we don't. From what I've seen so far, where possible we use solutions made by UCC members, even if they are not technically superior, because they are ours.
> 
> Leaving aside the fact that:
> 
> * You turned away from me and left me out of the decision making process that came out of my idea.
> 
> * You suggested running system management tools in a VM because that would involve install PHP 7.x on the machine, and we've got stuff running on 5.x (note not all machines at UCC are VM hosts).
> 
> * You don't mind us running PHP  5.x with all the resulting security risks
> 
> 
> Regards,
> 
> Melissa
> 
> 
> 
> 
>> 
>>> On Mon, 18 Mar 2019, Andrew Williams wrote:
>>> 
>>>> On 2019-03-18 9:58 PM, David Adam wrote:
>>>>> On Mon, 18 Mar 2019, Melissa Star wrote:
>>>>> I just realised - if you have smartmontools installed on linux machines,
>>>>> each hard drive or SSD will provide its “Airflow Temperature”, which I
>>>>> can extract via script.
>>>>> 
>>>>> I'm thinking of centralising this for all the servers I run, and
>>>>> collecting the data to chart, having a display at home that gives me
>>>>> live info for all machines under my control.
>>>> 
>>>> We used to do this on all the servers, but I think evil is the only one
>>>> still running:
>>> 
>>> Rather than rolling your own temperature monitoring scripts and code to 
>>> display them, I highly recommend installing Nagios/Icinga or equivalent. 
>>> That will monitor network services (web, database, NTP, SSH, etc), host 
>>> state, disk space, rack and internal temperatures, voltages, fan speeds, 
>>> etc, on tens or hundreds of machines.
>>> 
>>> Here's the Icinga2 setup for the MWA telescope - it's using a mix of 
>>> built-in and third-party plugins for the sort of things you'd see in a 
>>> normal server room, plus custom plugins to monitor the actual telescope 
>>> hardware and software health.
>>> 
>>> http://icinga.mwa128t.org/icingaweb2/monitoring/list/hostgroups
>>> 
>>> (username 'guest', password 'mwa-guest')
>>> 
>>> The performance data (raw values from every sensor or measurement) is 
>>> automatically piped from icinga to a Whisper/Carbon backend, and we use 
>>> Graphite to view the time series plots:
>>> 
>>> http://graphite.mwa128t.org/dashboard
>>> 
>>> You can either go to Dashboard/Finder and choose one of our pre-saved 
>>> plot layouts (please don't change them, or save new ones), or drill down 
>>> through the monitoring point tree using the top half of the page 
>>> (starting with icinga2. then going down through a hostname, then a 
>>> service on that host, until you reach a ....value leaf node, and add a 
>>> graph showing that value to the dashboard). I usually prefer to use the 
>>> Tree interface instead - go to Dashboard/Configure UI, then choose 'Tree 
>>> (left nav)'.
>>> 
>>> Andrew
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>> 
>> 
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