[collectd] Fwd: IPMI plugin discrete sensors support

[rinigus]

Hi Volodymyr,

I had the same issue with discrete values. I wrote a plugin that follows
whether the radios on Sailfish phone or Linux device are switched on or
off. So, these are 0 or 1's at any time moment. The corresponding pull
request is at https://github.com/collectd/collectd/pull/1805 . It went
through the review and got stalled for a while on political decision on
whether such plugins are of interest or not. As you could see from PR
discussion, we were just short on making a decision.

I find this plugin quite useful for battery-powered devices to see whether
the battery drain is related to WIFI or some other radio switched on. In my
case, stats leading to a fraction also has a meaning. I guess similar
discrete value logging is needed by others as well.

cheers,

rinigus



On Mon, Dec 5, 2016 at 4:36 PM, Mytnyk, VolodymyrX <
volodymyrx.mytnyk at intel.com> wrote:

> Hi All,
>
>
>
> Currently, IPMI collectD plugin supports only analog sensors. Would it be
> correct to add support of discrete sensors in similar way as analogs are
> added? I mean to add the reading of discrete sensor values by using
> OpenIPMI ipmi_sensor_get_states() function and dispatch the values into
> collectD as a metrics? Also, discrete sensors don't provide the base unit
> type, which means that the type mapping can be done only based on the
> discrete sensor type.
>
>
>
> Discrete sensor examples:
>
>
>
> # ipmitool sensor get 'IPMI Watchdog'
>
> Locating sensor record...
>
> Sensor ID              : IPMI Watchdog (0x3)
>
> Entity ID             : 7.1
>
> Sensor Type (Discrete): Watchdog2
>
> States Asserted       : Watchdog 2
>
>                          [Timer expired]
>
>
>
> # ipmitool sensor get 'P1 Status'
>
> Locating sensor record...
>
> Sensor ID              : P1 Status (0x70)
>
> Entity ID             : 3.1
>
> Sensor Type (Discrete): Processor
>
> States Asserted       : Processor
>
>                          [Presence detected]
>
>
>
> ipmitool sensor get 'Fan Redundancy'
>
> Locating sensor record...
>
> Sensor ID              : Fan Redundancy (0xc)
>
> Entity ID             : 29.1
>
> Sensor Type (Discrete): Fan
>
> States Asserted       : Redundancy State
>
>                          [Fully Redundant]
>
>
>
> # ipmitool sensor get 'PS1 Status'
>
> Locating sensor record...
>
> Sensor ID              : PS1 Status (0x50)
>
> Entity ID             : 10.1
>
> Sensor Type (Discrete): Power Supply
>
> States Asserted       : Power Supply
>
>                          [Presence detected]
>
>                          [Power Supply AC lost]
>
>
>
> # ipmitool sensor get 'Pwr Unit Redund'
>
> Locating sensor record...
>
> Sensor ID              : Pwr Unit Redund (0x2)
>
> Entity ID             : 21.1
>
> Sensor Type (Discrete): Power Unit
>
> States Asserted       : Redundancy State
>
>                          [Redundancy Lost]
>
>                          [Non-Redundant: Sufficient from Redundant]
>
>
>
> # ipmitool sensor get 'HDD 0 Status'
>
> Locating sensor record...
>
> Sensor ID              : HDD 0 Status (0xf0)
>
> Entity ID             : 15.1
>
> Sensor Type (Discrete): Drive Slot / Bay
>
>
>
> Thanks and Regards,
>
> Volodymyr
>
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>
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