# a00r00wst01
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a00r00wst01 | Absolute Humidity - Actual | -humidity-type.absolute-function.actual-location.outdoor |
| a00r00wst01 | Absolute  Pressure - Actual | -pressure-type.absolute-function.actual-location.outdoor |
| a00r00wst01 | Air Density | -density-location.outdoor |
| a00r00wst01 | Compass direction | -direction-source.compass-location.outdoor |
| a00r00wst01 | Dew Point - Actual | -dewpoint-function.actual-location.outdoor |
| a00r00wst01 | Global Radiation - Actual | -radiation-type.global-function.actual-location.outdoor |
| a00r00wst01 | Heating Temperature R2S | -temperature-type.heating-location.outdoor-source.r2s |
| a00r00wst01 | Heating Temperature Wind | -temperature-type.heating-location.outdoor-source.wind |
| a00r00wst01 | Mixing Ratio - Actual | -mixingratio-function.actual-location.outdoor |
| a00r00wst01 | Modbus Bulk Read Registers 10 - 50 | modbus_read[enc://{\$IPADDR},{\$SLAVEID},10,4,16*s+i+21*s+3*i] |
| a00r00wst01 | Modbus Bulk Read Registers 71-111 | modbus_read[enc://{\$IPADDR},{\$SLAVEID},71,4,38*s+3*i] |
| a00r00wst01 | Precipitation Quantity - Absolute | -precipitation-type.quantiy_absolute-location.outdoor |
| a00r00wst01 | Precipitation Quantity - Differential | -precipitation-type.quantiy_differential-location.outdoor |
| a00r00wst01 | Precipitation Rate | -precipitation-type.rate-location.outdoor |
| a00r00wst01 | Precipitation Type | -precipitation-type.type-location.outdoor |
| a00r00wst01 | Relative Humidity - Actual | -humidity-type.relative-function.actual-location.outdoor |
| a00r00wst01 | Relative Pressure - Actual | -pressure-type.relative-function.actual-location.outdoor |
| a00r00wst01 | Specific Enthalpy | -enthalpy-type.specific-location.outdoor |
| a00r00wst01 | Temperature - Actual | -temperature-function.actual-location.outdoor |
| a00r00wst01 | Wet Bulb Temperature | -temperature-type.wetbulb-location.outdoor |
| a00r00wst01 | Wind Chill Temperature | -temperature-type.windchill-location.outdoor |
| a00r00wst01 | Wind Direction - Actual | -direction-source.wind-function.actual-location.outdoor |
| a00r00wst01 | Wind Direction - Corrected | -direction-source.wind-function.corrected-location.outdoor |
| a00r00wst01 | Wind Direction Divided | direction-source.wind-function.divided |
| a00r00wst01 | Wind Direction - Mapped | direction-source.wind-function.mapped |
| a00r00wst01 | Wind Direction - Max | -direction-source.wind-function.max-location.outdoor |
| a00r00wst01 | Wind Direction - Min | -direction-source.wind-function.min-location.outdoor |
| a00r00wst01 | Wind Direction - Standard Deviation | -direction-source.wind-function.standard_dev-location.outdoor |
| a00r00wst01 | Wind Direction - Vectorial Avg | -direction-source.wind-function.vectorial_avg-location.outdoor |
| a00r00wst01 | Wind Measurement Quality | -quality-source.wind-location.outdoor |
| a00r00wst01 | Wind Speed - Actual | -speed-source.wind-function.actual-location.outdoor |
| a00r00wst01 | Wind Speed - Average | -speed-source.wind-function.avg-location.outdoor |
| a00r00wst01 | Wind Speed - Max | -speed-source.wind-function.max-location.outdoor |
| a00r00wst01 | Wind Speed - Min | -speed-source.wind-function.min-location.outdoor |
| a00r00wst01 | Wind Speed - Standard Deviation | -speed-source.wind-function.standard_dev-location.outdoor |
| a00r00wst01 | Wind Speed - Vectorial Average | -speed-source.wind-function.vectorial_avg-location.outdoor |


# a16r00col01
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00col01 | Power - SmartPOD Facility | -power-source.smartpod |
| a16r00col01 | Pump 1 RPM | -speed-source.pump-id.1 |
| a16r00col01 | Pump 2 RPM | -speed-source.pump-id.2 |
| a16r00col01 | Real Time Info - 10s Average | realtimeinfo |
| a16r00col01 | Setpoint - Coolant Tank Temperature | -setpoint-type.temperature-source.coolant-location.tank |
| a16r00col01 | submer coolant flow rate | -flow-source.coolant |
| a16r00col01 | submer water flow rate | -flow-source.water |
| a16r00col01 | Temperature - Coolant inlet | -temperature-source.coolant-location.inlet |
| a16r00col01 | Temperature - Coolant outlet | -temperature-source.coolant-location.outlet |
| a16r00col01 | Temperature - Coolant Tank | -temperature-source.coolant-location.tank |
| a16r00col01 | Temperature - Water inlet | -temperature-source.water-location.inlet |
| a16r00col01 | Temperature - Water outlet | -temperature-source.water-location.outlet |

# a16r00met01
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00met01 | Apparent Power Phase 1 | -power-type.apparent-source.phase-id.1 |
| a16r00met01 | Apparent Power Phase 2 | -power-type.apparent-source.phase-id.2 |
| a16r00met01 | Apparent Power Phase 3 | -power-type.apparent-source.phase-id.3 |
| a16r00met01 | Apparent Power Phase Sum | -power-type.apparent-source.phase-function.sum |
| a16r00met01 | Current Phase 1 | -current-source.phase-id.1 |
| a16r00met01 | Current Phase 2 | -current-source.phase-id.2 |
| a16r00met01 | Current Phase 3 | -current-source.phase-id.3 |
| a16r00met01 | Current Phase Vector Sum | -current-source.phase-function.vector_sum |
| a16r00met01 | Frequency | -frequency |
| a16r00met01 | Modbus Bulk Read Registers 0 - 62 | modbus_read[{\$IPADDR},{\$SLAVEID},19000,4,32*f,1] |
| a16r00met01 | Modbus Bulk Read Registers 110 - 120 | modbus_read[{\$IPADDR},{\$SLAVEID},19110,4,f,1] |
| a16r00met01 | Modbus Bulk Read Registers 116 | modbus_read[{\$IPADDR},{\$SLAVEID},19116,4,f,1] |
| a16r00met01 | Power Factor Phase 1 | -powerfactor-source.phase-id.1 |
| a16r00met01 | Power Factor Phase 2 | -powerfactor-source.phase-id.2 |
| a16r00met01 | Power Factor Phase 3 | -powerfactor-source.phase-id.3 |
| a16r00met01 | Reactive Power Phase 1 | -power-type.reactive-source.phase-id.1 |
| a16r00met01 | Reactive Power Phase 2 | -power-type.reactive-source.phase-id.2 |
| a16r00met01 | Reactive Power Phase 3 | -power-type.reactive-source.phase-id.3 |
| a16r00met01 | Reactive Power Phase Sum | -power-type.reactive-source.phase-function.sum |
| a16r00met01 | Real Energy Phase 1 | -energy-type.real-source.phase-id.1 |
| a16r00met01 | Real Energy Phase 2 | -energy-type.real-source.phase-id.2 |
| a16r00met01 | Real Energy Phase 3 | -energy-type.real-source.phase-id.3 |
| a16r00met01 | Real Energy Phase Sum | -energy-type.real-source.phase-function.sum |
| a16r00met01 | Real Power Phase 1 | -power-type.real-source.phase-id.1 |
| a16r00met01 | Real Power Phase 2 | -power-type.real-source.phase-id.2 |
| a16r00met01 | Real Power Phase 3 | -power-type.real-source.phase-id.3 |
| a16r00met01 | Real Power Phase Sum | -power-type.real-source.phase-function.sum |
| a16r00met01 | THD Current Phase 1 | -thd-type.current-source.phase-id.1 |
| a16r00met01 | THD Current Phase 2 | -thd-type.current-source.phase-id.2 |
| a16r00met01 | THD Current Phase 3 | -thd-type.current-source.phase-id.3 |
| a16r00met01 | THD Voltage Phase 1 | -thd-type.voltage-source.phase-id.1 |
| a16r00met01 | THD Voltage Phase 2 | -thd-type.voltage-source.phase-id.2 |
| a16r00met01 | THD Voltage Phase 3 | -thd-type.voltage-source.phase-id.3 |
| a16r00met01 | Voltage Phase 1-2 | -voltage-source.phase-id.12 |
| a16r00met01 | Voltage Phase 1 | -voltage-source.phase-id.1 |
| a16r00met01 | Voltage Phase 2-3 | -voltage-source.phase-id.23 |
| a16r00met01 | Voltage Phase 2 | -voltage-source.phase-id.2 |
| a16r00met01 | Voltage Phase 3-1 | -voltage-source.phase-id.31 |
| a16r00met01 | Voltage Phase 3 | -voltage-source.phase-id.3 |

# a16r00met02
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00met02 | Apparent Power Phase 1 | -power-type.apparent-source.phase-id.1 |
| a16r00met02 | Apparent Power Phase 2 | -power-type.apparent-source.phase-id.2 |
| a16r00met02 | Apparent Power Phase 3 | -power-type.apparent-source.phase-id.3 |
| a16r00met02 | Apparent Power Phase Sum | -power-type.apparent-source.phase-function.sum |
| a16r00met02 | Current Phase 1 | -current-source.phase-id.1 |
| a16r00met02 | Current Phase 2 | -current-source.phase-id.2 |
| a16r00met02 | Current Phase 3 | -current-source.phase-id.3 |
| a16r00met02 | Current Phase Vector Sum | -current-source.phase-function.vector_sum |
| a16r00met02 | Frequency | -frequency |
| a16r00met02 | Modbus Bulk Read Registers 0 - 62 | modbus_read[{\$IPADDR},{\$SLAVEID},19000,4,32*f,1] |
| a16r00met02 | Modbus Bulk Read Registers 110 - 120 | modbus_read[{\$IPADDR},{\$SLAVEID},19110,4,f,1] |
| a16r00met02 | Modbus Bulk Read Registers 116 | modbus_read[{\$IPADDR},{\$SLAVEID},19116,4,f,1] |
| a16r00met02 | Power Factor Phase 1 | -powerfactor-source.phase-id.1 |
| a16r00met02 | Power Factor Phase 2 | -powerfactor-source.phase-id.2 |
| a16r00met02 | Power Factor Phase 3 | -powerfactor-source.phase-id.3 |
| a16r00met02 | Reactive Power Phase 1 | -power-type.reactive-source.phase-id.1 |
| a16r00met02 | Reactive Power Phase 2 | -power-type.reactive-source.phase-id.2 |
| a16r00met02 | Reactive Power Phase 3 | -power-type.reactive-source.phase-id.3 |
| a16r00met02 | Reactive Power Phase Sum | -power-type.reactive-source.phase-function.sum |
| a16r00met02 | Real Energy Phase 1 | -energy-type.real-source.phase-id.1 |
| a16r00met02 | Real Energy Phase 2 | -energy-type.real-source.phase-id.2 |
| a16r00met02 | Real Energy Phase 3 | -energy-type.real-source.phase-id.3 |
| a16r00met02 | Real Energy Phase Sum | -energy-type.real-source.phase-function.sum |
| a16r00met02 | Real Power Phase 1 | -power-type.real-source.phase-id.1 |
| a16r00met02 | Real Power Phase 2 | -power-type.real-source.phase-id.2 |
| a16r00met02 | Real Power Phase 3 | -power-type.real-source.phase-id.3 |
| a16r00met02 | Real Power Phase Sum | -power-type.real-source.phase-function.sum |
| a16r00met02 | THD Current Phase 1 | -thd-type.current-source.phase-id.1 |
| a16r00met02 | THD Current Phase 2 | -thd-type.current-source.phase-id.2 |
| a16r00met02 | THD Current Phase 3 | -thd-type.current-source.phase-id.3 |
| a16r00met02 | THD Voltage Phase 1 | -thd-type.voltage-source.phase-id.1 |
| a16r00met02 | THD Voltage Phase 2 | -thd-type.voltage-source.phase-id.2 |
| a16r00met02 | THD Voltage Phase 3 | -thd-type.voltage-source.phase-id.3 |
| a16r00met02 | Voltage Phase 1-2 | -voltage-source.phase-id.12 |
| a16r00met02 | Voltage Phase 1 | -voltage-source.phase-id.1 |
| a16r00met02 | Voltage Phase 2-3 | -voltage-source.phase-id.23 |
| a16r00met02 | Voltage Phase 2 | -voltage-source.phase-id.2 |
| a16r00met02 | Voltage Phase 3-1 | -voltage-source.phase-id.31 |
| a16r00met02 | Voltage Phase 3 | -voltage-source.phase-id.3 |

# a16r00met03
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00met03 | Apparent Power Phase 1 | -power-type.apparent-source.phase-id.1 |
| a16r00met03 | Apparent Power Phase 2 | -power-type.apparent-source.phase-id.2 |
| a16r00met03 | Apparent Power Phase 3 | -power-type.apparent-source.phase-id.3 |
| a16r00met03 | Apparent Power Phase Sum | -power-type.apparent-source.phase-function.sum |
| a16r00met03 | Current Phase 1 | -current-source.phase-id.1 |
| a16r00met03 | Current Phase 2 | -current-source.phase-id.2 |
| a16r00met03 | Current Phase 3 | -current-source.phase-id.3 |
| a16r00met03 | Current Phase Vector Sum | -current-source.phase-function.vector_sum |
| a16r00met03 | Frequency | -frequency |
| a16r00met03 | Modbus Bulk Read Registers 0 - 62 | modbus_read[{\$IPADDR},{\$SLAVEID},19000,4,32*f,1] |
| a16r00met03 | Modbus Bulk Read Registers 110 - 120 | modbus_read[{\$IPADDR},{\$SLAVEID},19110,4,f,1] |
| a16r00met03 | Modbus Bulk Read Registers 116 | modbus_read[{\$IPADDR},{\$SLAVEID},19116,4,f,1] |
| a16r00met03 | Power Factor Phase 1 | -powerfactor-source.phase-id.1 |
| a16r00met03 | Power Factor Phase 2 | -powerfactor-source.phase-id.2 |
| a16r00met03 | Power Factor Phase 3 | -powerfactor-source.phase-id.3 |
| a16r00met03 | Reactive Power Phase 1 | -power-type.reactive-source.phase-id.1 |
| a16r00met03 | Reactive Power Phase 2 | -power-type.reactive-source.phase-id.2 |
| a16r00met03 | Reactive Power Phase 3 | -power-type.reactive-source.phase-id.3 |
| a16r00met03 | Reactive Power Phase Sum | -power-type.reactive-source.phase-function.sum |
| a16r00met03 | Real Energy Phase 1 | -energy-type.real-source.phase-id.1 |
| a16r00met03 | Real Energy Phase 2 | -energy-type.real-source.phase-id.2 |
| a16r00met03 | Real Energy Phase 3 | -energy-type.real-source.phase-id.3 |
| a16r00met03 | Real Energy Phase Sum | -energy-type.real-source.phase-function.sum |
| a16r00met03 | Real Power Phase 1 | -power-type.real-source.phase-id.1 |
| a16r00met03 | Real Power Phase 2 | -power-type.real-source.phase-id.2 |
| a16r00met03 | Real Power Phase 3 | -power-type.real-source.phase-id.3 |
| a16r00met03 | Real Power Phase Sum | -power-type.real-source.phase-function.sum |
| a16r00met03 | THD Current Phase 1 | -thd-type.current-source.phase-id.1 |
| a16r00met03 | THD Current Phase 2 | -thd-type.current-source.phase-id.2 |
| a16r00met03 | THD Current Phase 3 | -thd-type.current-source.phase-id.3 |
| a16r00met03 | THD Voltage Phase 1 | -thd-type.voltage-source.phase-id.1 |
| a16r00met03 | THD Voltage Phase 2 | -thd-type.voltage-source.phase-id.2 |
| a16r00met03 | THD Voltage Phase 3 | -thd-type.voltage-source.phase-id.3 |
| a16r00met03 | Voltage Phase 1-2 | -voltage-source.phase-id.12 |
| a16r00met03 | Voltage Phase 1 | -voltage-source.phase-id.1 |
| a16r00met03 | Voltage Phase 2-3 | -voltage-source.phase-id.23 |
| a16r00met03 | Voltage Phase 2 | -voltage-source.phase-id.2 |
| a16r00met03 | Voltage Phase 3-1 | -voltage-source.phase-id.31 |
| a16r00met03 | Voltage Phase 3 | -voltage-source.phase-id.3 |

# a16r00met04
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00met04 | Apparent Power Phase 1 | -power-type.apparent-source.phase-id.1 |
| a16r00met04 | Apparent Power Phase 2 | -power-type.apparent-source.phase-id.2 |
| a16r00met04 | Apparent Power Phase 3 | -power-type.apparent-source.phase-id.3 |
| a16r00met04 | Apparent Power Phase Sum | -power-type.apparent-source.phase-function.sum |
| a16r00met04 | Current Phase 1 | -current-source.phase-id.1 |
| a16r00met04 | Current Phase 2 | -current-source.phase-id.2 |
| a16r00met04 | Current Phase 3 | -current-source.phase-id.3 |
| a16r00met04 | Current Phase Vector Sum | -current-source.phase-function.vector_sum |
| a16r00met04 | Frequency | -frequency |
| a16r00met04 | Modbus Bulk Read Registers 0 - 62 | modbus_read[{\$IPADDR},{\$SLAVEID},19000,4,32*f,1] |
| a16r00met04 | Modbus Bulk Read Registers 110 - 120 | modbus_read[{\$IPADDR},{\$SLAVEID},19110,4,f,1] |
| a16r00met04 | Modbus Bulk Read Registers 116 | modbus_read[{\$IPADDR},{\$SLAVEID},19116,4,f,1] |
| a16r00met04 | Power Factor Phase 1 | -powerfactor-source.phase-id.1 |
| a16r00met04 | Power Factor Phase 2 | -powerfactor-source.phase-id.2 |
| a16r00met04 | Power Factor Phase 3 | -powerfactor-source.phase-id.3 |
| a16r00met04 | Reactive Power Phase 1 | -power-type.reactive-source.phase-id.1 |
| a16r00met04 | Reactive Power Phase 2 | -power-type.reactive-source.phase-id.2 |
| a16r00met04 | Reactive Power Phase 3 | -power-type.reactive-source.phase-id.3 |
| a16r00met04 | Reactive Power Phase Sum | -power-type.reactive-source.phase-function.sum |
| a16r00met04 | Real Energy Phase 1 | -energy-type.real-source.phase-id.1 |
| a16r00met04 | Real Energy Phase 2 | -energy-type.real-source.phase-id.2 |
| a16r00met04 | Real Energy Phase 3 | -energy-type.real-source.phase-id.3 |
| a16r00met04 | Real Energy Phase Sum | -energy-type.real-source.phase-function.sum |
| a16r00met04 | Real Power Phase 1 | -power-type.real-source.phase-id.1 |
| a16r00met04 | Real Power Phase 2 | -power-type.real-source.phase-id.2 |
| a16r00met04 | Real Power Phase 3 | -power-type.real-source.phase-id.3 |
| a16r00met04 | Real Power Phase Sum | -power-type.real-source.phase-function.sum |
| a16r00met04 | THD Current Phase 1 | -thd-type.current-source.phase-id.1 |
| a16r00met04 | THD Current Phase 2 | -thd-type.current-source.phase-id.2 |
| a16r00met04 | THD Current Phase 3 | -thd-type.current-source.phase-id.3 |
| a16r00met04 | THD Voltage Phase 1 | -thd-type.voltage-source.phase-id.1 |
| a16r00met04 | THD Voltage Phase 2 | -thd-type.voltage-source.phase-id.2 |
| a16r00met04 | THD Voltage Phase 3 | -thd-type.voltage-source.phase-id.3 |
| a16r00met04 | Voltage Phase 1-2 | -voltage-source.phase-id.12 |
| a16r00met04 | Voltage Phase 1 | -voltage-source.phase-id.1 |
| a16r00met04 | Voltage Phase 2-3 | -voltage-source.phase-id.23 |
| a16r00met04 | Voltage Phase 2 | -voltage-source.phase-id.2 |
| a16r00met04 | Voltage Phase 3-1 | -voltage-source.phase-id.31 |
| a16r00met04 | Voltage Phase 3 | -voltage-source.phase-id.3 |

# a16r00met05
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00met05 | Apparent Power Phase 1 | -power-type.apparent-source.phase-id.1 |
| a16r00met05 | Apparent Power Phase 2 | -power-type.apparent-source.phase-id.2 |
| a16r00met05 | Apparent Power Phase 3 | -power-type.apparent-source.phase-id.3 |
| a16r00met05 | Apparent Power Phase Sum | -power-type.apparent-source.phase-function.sum |
| a16r00met05 | Current Phase 1 | -current-source.phase-id.1 |
| a16r00met05 | Current Phase 2 | -current-source.phase-id.2 |
| a16r00met05 | Current Phase 3 | -current-source.phase-id.3 |
| a16r00met05 | Current Phase Vector Sum | -current-source.phase-function.vector_sum |
| a16r00met05 | Frequency | -frequency |
| a16r00met05 | Modbus Bulk Read Registers 0 - 62 | modbus_read[{\$IPADDR},{\$SLAVEID},19000,4,32*f,1] |
| a16r00met05 | Modbus Bulk Read Registers 110 - 120 | modbus_read[{\$IPADDR},{\$SLAVEID},19110,4,f,1] |
| a16r00met05 | Modbus Bulk Read Registers 116 | modbus_read[{\$IPADDR},{\$SLAVEID},19116,4,f,1] |
| a16r00met05 | Power Factor Phase 1 | -powerfactor-source.phase-id.1 |
| a16r00met05 | Power Factor Phase 2 | -powerfactor-source.phase-id.2 |
| a16r00met05 | Power Factor Phase 3 | -powerfactor-source.phase-id.3 |
| a16r00met05 | Reactive Power Phase 1 | -power-type.reactive-source.phase-id.1 |
| a16r00met05 | Reactive Power Phase 2 | -power-type.reactive-source.phase-id.2 |
| a16r00met05 | Reactive Power Phase 3 | -power-type.reactive-source.phase-id.3 |
| a16r00met05 | Reactive Power Phase Sum | -power-type.reactive-source.phase-function.sum |
| a16r00met05 | Real Energy Phase 1 | -energy-type.real-source.phase-id.1 |
| a16r00met05 | Real Energy Phase 2 | -energy-type.real-source.phase-id.2 |
| a16r00met05 | Real Energy Phase 3 | -energy-type.real-source.phase-id.3 |
| a16r00met05 | Real Energy Phase Sum | -energy-type.real-source.phase-function.sum |
| a16r00met05 | Real Power Phase 1 | -power-type.real-source.phase-id.1 |
| a16r00met05 | Real Power Phase 2 | -power-type.real-source.phase-id.2 |
| a16r00met05 | Real Power Phase 3 | -power-type.real-source.phase-id.3 |
| a16r00met05 | Real Power Phase Sum | -power-type.real-source.phase-function.sum |
| a16r00met05 | THD Current Phase 1 | -thd-type.current-source.phase-id.1 |
| a16r00met05 | THD Current Phase 2 | -thd-type.current-source.phase-id.2 |
| a16r00met05 | THD Current Phase 3 | -thd-type.current-source.phase-id.3 |
| a16r00met05 | THD Voltage Phase 1 | -thd-type.voltage-source.phase-id.1 |
| a16r00met05 | THD Voltage Phase 2 | -thd-type.voltage-source.phase-id.2 |
| a16r00met05 | THD Voltage Phase 3 | -thd-type.voltage-source.phase-id.3 |
| a16r00met05 | Voltage Phase 1-2 | -voltage-source.phase-id.12 |
| a16r00met05 | Voltage Phase 1 | -voltage-source.phase-id.1 |
| a16r00met05 | Voltage Phase 2-3 | -voltage-source.phase-id.23 |
| a16r00met05 | Voltage Phase 2 | -voltage-source.phase-id.2 |
| a16r00met05 | Voltage Phase 3-1 | -voltage-source.phase-id.31 |
| a16r00met05 | Voltage Phase 3 | -voltage-source.phase-id.3 |

# a16r00mox01
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00mox01 | CH4 Pressure after first reduction | -pressure-id.0-location.PressureReductionCabinet |
| a16r00mox01 | CH4 Pressure in storage | -pressure-id.1-location.PressureReductionCabinet |
| a16r00mox01 | Modbus Bulk Read Registers 8-24 | modbus_read[{\$IPADDR},1,8,4,8*f,0] |
| a16r00mox01 | Voltage - 2 | -voltage-id.2 |
| a16r00mox01 | Voltage - 3 | -voltage-id.3 |
| a16r00mox01 | Voltage - 4 | -voltage-id.4 |

# a16r00mox02
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00mox02 | Modbus Bulk Read Registers 1548 -1558 | modbus_read[{\$IPADDR},1,1548,4,6*f,0] |
| a16r00mox02 | Temperature - 0 | -temperature-source.pt100-id.0 |
| a16r00mox02 | Temperature - 1 | -temperature-source.pt100-id.1 |
| a16r00mox02 | Temperature - 2 | -temperature-source.pt100-id.2 |
| a16r00mox02 | Temperature - 3 | -temperature-source.pt100-id.3 |
| a16r00mox02 | Temperature - 4 | -temperature-source.pt100-id.4 |
| a16r00mox02 | Temperature - 5 | -temperature-source.pt100-id.5 |

# a16r00sen01
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00sen01 | Air differential pressure | -pressure-location.fccontainer-source.airdiff |
| a16r00sen01 | CH4 Low Pressure Sensor | -pressure-location.fccontainer-source.ch4 |
| a16r00sen01 | container_read_unipi_jsonData | container_read_unipi_jsonData |
| a16r00sen01 | DC to FC container flow | -flow-location.dccontainer-unit.lpm-source.toFCflowmeter |
| a16r00sen01 | Dry cooler flow | -flow-location.dccontainer-unit.lpm-source.drycoolerflowmeter |
| a16r00sen01 | Dry cooler state | -state-location.dccontainer-source.drycoolerctrl |
| a16r00sen01 | FC container fan setpoint | -setpoint-location.fccontainer-source.airsupplyfan |
| a16r00sen01 | Gas detection leak sensor fc container | -mixingratio-location.fccontainer-source.FCGasDetector |
| a16r00sen01 | Pump Flow | -flow-location.dccontainer-unit.m3h |
| a16r00sen01 | Pump flow speed | -speed-location.dccontainer-unit.rpm |
| a16r00sen01 | Pump head | -pressure-location.dccontainer-unit.m |
| a16r00sen01 | ShuntValveDCContainer | -flow-location.dccontainer-source.unipi |
| a16r00sen01 | Submer out temperature | -temperature-location.dccontainer-unit.degC-source.extSensor |
| a16r00sen01 | Temperature DC Container | -temperature-location.dccontainer-id.0-source.DS18B20 |
| a16r00sen01 | Temperature FC container | -temperature-location.fccontainer-id.2-source.PT1000 |

# a16r00sen02
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00sen02 | dhsubstation_read_unipi_jsonData | dhsubstation_read_unipi_jsonData |
| a16r00sen02 | FCCoolingFlow | -flow-location.DHsubstation |
| a16r00sen02 | FC Heat recovery (Thermal power) | -power-function.calculated |
| a16r00sen02 | Heat recovery flow | -flow-location.dhsubstation-source.EnergyWatchE6 |
| a16r00sen02 | Heat recovery flow lpm | -flow-location.dhsubstation-source.EnergyWatchE6-unit.lpm |
| a16r00sen02 | Temperature Fuel Cell System return Thin | -temperature-location.dhsubstation-id.3-source.DS18B20 |
| a16r00sen02 | Temperature Fuel Cell System supply Thout | -temperature-location.dhsubstation-id.2-source.DS18B20 |
| a16r00sen02 | Temperature Heating System return Tcin | -temperature-location.dhsubstation-id.1-source.DS18B20 |
| a16r00sen02 | Temperature Heating System supply Tcout | -temperature-location.dhsubstation-id.0-source.DS18B20 |
| a16r00sen02 | Thermal energy recovery | -energy-location.dhsubstation-source.EnergyWatchE6 |
| a16r00sen02 | Thermal energy recovery kW | -energy-location.dhsubstation-source.EnergyWatchE6-unit.kW |

# nuc-wedistrict
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| fuelcellproxy.rice.nu | Agent ping | agent.ping |
| fuelcellproxy.rice.nu | Available memory | vm.memory.size[available] |
| fuelcellproxy.rice.nu | Checksum of /etc/passwd | vfs.file.cksum[/etc/passwd] |
| fuelcellproxy.rice.nu | Context switches per second | system.cpu.switches |
| fuelcellproxy.rice.nu | CPU idle time | system.cpu.util[,idle] |
| fuelcellproxy.rice.nu | CPU interrupt time | system.cpu.util[,interrupt] |
| fuelcellproxy.rice.nu | CPU iowait time | system.cpu.util[,iowait] |
| fuelcellproxy.rice.nu | CPU nice time | system.cpu.util[,nice] |
| fuelcellproxy.rice.nu | CPU softirq time | system.cpu.util[,softirq] |
| fuelcellproxy.rice.nu | CPU steal time | system.cpu.util[,steal] |
| fuelcellproxy.rice.nu | CPU system time | system.cpu.util[,system] |
| fuelcellproxy.rice.nu | CPU user time | system.cpu.util[,user] |
| fuelcellproxy.rice.nu | Free disk space on /boot (percentage) | vfs.fs.size[/boot,pfree] |
| fuelcellproxy.rice.nu | Free disk space on /boot | vfs.fs.size[/boot,free] |
| fuelcellproxy.rice.nu | Free disk space on {#FSNAME} (percentage) | vfs.fs.size[{#FSNAME},pfree] |
| fuelcellproxy.rice.nu | Free disk space on {#FSNAME} | vfs.fs.size[{#FSNAME},free] |
| fuelcellproxy.rice.nu | Free disk space on / (percentage) | vfs.fs.size[/,pfree] |
| fuelcellproxy.rice.nu | Free disk space on / | vfs.fs.size[/,free] |
| fuelcellproxy.rice.nu | Free inodes on /boot (percentage) | vfs.fs.inode[/boot,pfree] |
| fuelcellproxy.rice.nu | Free inodes on {#FSNAME} (percentage) | vfs.fs.inode[{#FSNAME},pfree] |
| fuelcellproxy.rice.nu | Free inodes on / (percentage) | vfs.fs.inode[/,pfree] |
| fuelcellproxy.rice.nu | Free swap space in % | system.swap.size[,pfree] |
| fuelcellproxy.rice.nu | Free swap space | system.swap.size[,free] |
| fuelcellproxy.rice.nu | Host boot time | system.boottime |
| fuelcellproxy.rice.nu | Host local time | system.localtime |
| fuelcellproxy.rice.nu | Host name of zabbix_agentd running | agent.hostname |
| fuelcellproxy.rice.nu | Host name | system.hostname |
| fuelcellproxy.rice.nu | Incoming network traffic on br-a070e5fff548 | net.if.in[br-a070e5fff548] |
| fuelcellproxy.rice.nu | Incoming network traffic on docker0 | net.if.in[docker0] |
| fuelcellproxy.rice.nu | Incoming network traffic on enp88s0 | net.if.in[enp88s0] |
| fuelcellproxy.rice.nu | Incoming network traffic on enp89s0 | net.if.in[enp89s0] |
| fuelcellproxy.rice.nu | Incoming network traffic on {#IFNAME} | net.if.in[{#IFNAME}] |
| fuelcellproxy.rice.nu | Incoming network traffic on wlo1 | net.if.in[wlo1] |
| fuelcellproxy.rice.nu | Interrupts per second | system.cpu.intr |
| fuelcellproxy.rice.nu | Maximum number of opened files | kernel.maxfiles |
| fuelcellproxy.rice.nu | Maximum number of processes | kernel.maxproc |
| fuelcellproxy.rice.nu | Mounted filesystem discovery | vfs.fs.discovery |
| fuelcellproxy.rice.nu | Network interface discovery | net.if.discovery |
| fuelcellproxy.rice.nu | Number of logged in users | system.users.num |
| fuelcellproxy.rice.nu | Number of processes | proc.num[] |
| fuelcellproxy.rice.nu | Number of running processes | proc.num[,,run] |
| fuelcellproxy.rice.nu | Outgoing network traffic on br-a070e5fff548 | net.if.out[br-a070e5fff548] |
| fuelcellproxy.rice.nu | Outgoing network traffic on docker0 | net.if.out[docker0] |
| fuelcellproxy.rice.nu | Outgoing network traffic on enp88s0 | net.if.out[enp88s0] |
| fuelcellproxy.rice.nu | Outgoing network traffic on enp89s0 | net.if.out[enp89s0] |
| fuelcellproxy.rice.nu | Outgoing network traffic on {#IFNAME} | net.if.out[{#IFNAME}] |
| fuelcellproxy.rice.nu | Outgoing network traffic on wlo1 | net.if.out[wlo1] |
| fuelcellproxy.rice.nu | Processor load (15 min average per core) | system.cpu.load[percpu,avg15] |
| fuelcellproxy.rice.nu | Processor load (1 min average per core) | system.cpu.load[percpu,avg1] |
| fuelcellproxy.rice.nu | Processor load (5 min average per core) | system.cpu.load[percpu,avg5] |
| fuelcellproxy.rice.nu | System information | system.uname |
| fuelcellproxy.rice.nu | System uptime | system.uptime |
| fuelcellproxy.rice.nu | Total disk space on /boot | vfs.fs.size[/boot,total] |
| fuelcellproxy.rice.nu | Total disk space on {#FSNAME} | vfs.fs.size[{#FSNAME},total] |
| fuelcellproxy.rice.nu | Total disk space on / | vfs.fs.size[/,total] |
| fuelcellproxy.rice.nu | Total memory | vm.memory.size[total] |
| fuelcellproxy.rice.nu | Total swap space | system.swap.size[,total] |
| fuelcellproxy.rice.nu | Used disk space on /boot | vfs.fs.size[/boot,used] |
| fuelcellproxy.rice.nu | Used disk space on {#FSNAME} | vfs.fs.size[{#FSNAME},used] |
| fuelcellproxy.rice.nu | Used disk space on / | vfs.fs.size[/,used] |
| fuelcellproxy.rice.nu | Version of zabbix_agent(d) running | agent.version |

# Solid Power FC1
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth01 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth01 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth01 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth01 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth01 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth01 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC2
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth02 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth02 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth02 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth02 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth02 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth02 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC3
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth03 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth03 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth03 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth03 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth03 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth03 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC4
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth04 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth04 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth04 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth04 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth04 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth04 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC5
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth05 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth05 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth05 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth05 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth05 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth05 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC6
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth06 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth06 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth06 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth06 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth06 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth06 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC7
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth07 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth07 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth07 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth07 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth07 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth07 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC8
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth08 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth08 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth08 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth08 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth08 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth08 | Power set point AC | -power-source.setpoint-id.1 |

# Solid Power FC9
| hostname | Zabbix name | Zabbix key |
| -------- | ----------- | ---------- |
| a16r00oth09 | Electrical efficiency | -utilization-unit.percent |
| a16r00oth09 | EMS power max set point | -setpoint-unit.watt |
| a16r00oth09 | Gas energy in | -power-unit.watt-source.fuelcell-source.gas |
| a16r00oth09 | modbus read address 0 - 5 32bit float | modbus_read[{\$IPADDR},{\$SLAVEID},0,3,5*f,3,0] |
| a16r00oth09 | Power output AC | -power-source.fuelcell-id.1 |
| a16r00oth09 | Power set point AC | -power-source.setpoint-id.1 |


# Metrics data structure

### Goal

Store datacenter metrics in a standardized way to make it easier to extract and
analyze it. The storage should be able to grow as the data grows.

### Time Series Database storage schema 

The format of the metrics in time series databases are in most cases:

    <metric name> <time stamp> <value> <tag> <tag>...

-   Metric name is one word.
-   Time stamps can be in seconds or milliseconds since jan 1, 1970
    (unix epoch).
-   Value is long or double.
-   Tag is of form `key=value`.

### Types of metrics

All metrics that we handle is time stamped. It can be either metric values
(float, int) or strings (logs, text information). To store the metric
values a Time Series Database can be used and for the strings
Elastic-Search. Elastic-Search can be deployed on a cluster and many
TSDB also support clustering.

### Metric vs Tags

The metric should be a specific thing, like **Ethernet packets** but
not be broken out into a particular instance of a thing. Generally you
do not want to collect a metric like `net.bytes.eth0`, `net.bytes.eth1`,
etc. Collect `net.bytes` and tag eth0 datapoints with `iface=eth0`, etc.
Do not create separate **in** and **out** metrics, either. Add
the tag `opt=in` or `opt=out`. This way you can easily see the total network
activity for a given box without having to plot a bunch of metrics. This
still gives you the flexibility to drill down and just show activity for
a particular interface, or just a particular direction.

### Allowed metrics

|               |             |               |             |
|---------------|-------------|---------------|-------------|
| attemperation | frequency    | precipitation | thd          |
| brightness    | gain         | pressure      | time         |
| capacity      | humidity     | pue           | twilight     |
| charge        | irradiance   | radiation     | usage        |
| count         | limit        | rate          | utilization  |
| current       | loss         | setpoint      | uvindex      |
| direction     | mass         | severitylevel | velocity     |
| efficiency    | mixingratio  | signal        | voltage      |
| energy        | mode         | speed         | volume       |
| enthalpy      | power        | state         | wue          |
| fault         | powerfactor  | temperature   |              |
| flow          | ppue         | temporary     |              |


### Tags/Labels

Tags/labels applicable to our installation:

-   **datacenter:** Defines what specific data center as the datasets
    can be collected from multiple monitored data centers. (required,
    automatically parsed)
-   **pod:** Data centers are broken down into modules (PODs) numbered,
    1, 2, 3 etc. (automatically parsed)
-   **area:** If not in pod you can specify an area
-   **experiment:** If not in pod or area you can specify experiment
-   **rack:** The rack number in the pod, set to 0 for equipment not
    mounted in racks (required, automatically parsed)
-   **chassis:** For IT systems where there are several servers hosted
    in one chassis (optional, automatically parsed)
-   **deviceType:** What type of device is being monitored in a 3-letter
    code. E.g. srv = server. See table below for codes. (required,
    automatically parsed)
-   **deviceNumber:** If there are several devices with the same tags
    they are separated using device number. Eg, A server chassis
    includes 2 servers which are labeled with deviceNumber 1 and 2.
    (required, automatically parsed)
-   **source:** Object within host which provides the source of the
    measurement. E.g. fan, cpu, etc. (optional)
-   **location:** Where the measurement is taken. E.g. top, inlet,
    output, hot aisle, outdoor, extract. (optional)
-   **direction:** Direction of metric. E.g. in, out, up, down, forward,
    backward. For the metric flow this can be e.g. positive or negative
    (optional)
-   **id:** If one host has multiple sources of the same type id is
    used to distinguish between them, e.g. there can be multiple CPUs on
    the same host. (optional)
-   **unit:** Unit of the metric (C,W,m/s, etc.) (optional,
    automatically parsed)
-   **type:** Provides information about metric type. E.g. if metric is
    pressure, type could be absolute or differential. If metric was
    power, type could be real, reactive or apparent. (optional)
-   **hostname:** Name of host providing metrics. Includes pod, rack,
    chassis (optional), deviceType and deviceNumber information. E.g.
    p01r04c07srv02 (pod=1,rack=4,chassis=7,deviceType=srv,
    deviceNumber=2) (required, automatically parsed)
-   **function:** Used to specify if metric is obtained with a function
    such as min, max, average, etc. (optional)
-   **opt:** Optional information, very rarely used (optional)

### Allowed device types

|deviceType   |Device|
------- | ------------------------------------------
|hum    |humidifier|
|ecm    |environmental corrosion monitoring|
|cal    |calculator (for aggregating data)|
|mox    |moxa (measurement or control)|
|pum    |pump|
|hex    |heat exchanger|
|ups    |uninterruptible power source|
|sen    |sensor gateway (eg. raspberry pi)|
|srv    |server|
|swi    |switch|
|met    |energy meter|
|str    |sensor strip|
|pdu    |power distribution unit|
|fan    |fan|
|esp    |esp8266 wifi gateway|
|fcb    |fan control board|
|wst    |weather station|
|liq    |liquid measurement device (eg. kamstrup)|
|col    |cooler|
|oth    |other|
|inv    |inverter|


## Zabbix Mapping

Each Zabbix item is mapped to a metric name and identification
tags. A Zabbix item has multiple fields that can be used: **name**, **key** and
**description**. There are different kinds of keys for Zabbix items. In many
items the **key** is just a unique identifier that is defined by the creator
of the item, but in simple checks and agent items the key is a parameter
for the agent or module. E.g. for modbus the keys can look like
`modbus_read_registers[e192.168.20.76,1,31,4,s]`. This information is
not much of a help when extracting the data and putting it into a
database outside of Zabbix. The name field is neither much of a help by
its own as this is a human readable name for the item, e.g. "Air
Temperature". The **description** field is usually empty.

### Automatically extracted tags

Following tags: **pod**, **rack**, **host** are extracted from the
hostname associated with the given item. This is possible because of the
SICS ICE naming format:
`P<Pod id>R<Rack id><name>`. For example p01r02srv10 will give
us the tags `pod=1`, `rack=02`, `host=p01r02srv10`. The
tag **unit** is taken directly from the units-field (if set) and tag
**datacenter** is set depending on Zabbix installation, e.g. `datacenter=lulea`.
Instead of `pod`, `area` or `experiment` can be used, e.g. `a01r02srv10` becomes
`area=1`, `rack=02` etc. while `e01r02srv10` becomes `experiment=1`, `rack=02`.

### Metric and additional tag information

The metric and additional tags are entered into either the **key**- or
**description**-field of the Zabbix item. The reason to support the
additional **description**-field is because sometimes the preferred
**key**-field is already populated. We came up with one format for each
field where the format for the **description**-field support additional
text:

***Key*-field**:

The key should be inserted into the *Key*-field of the item if
possible. Zabbix supports the following characters in the key field
"**0-9a-zA-Z\_-.**".

Format: `-<metricname>(-<tag>.<value>)*`

- `<metricname>` is the name to be used for the metric when storing it in the database.

- `<tag>` is any of | dc | pod | rack | host | source\| id |. Each tag should only be present at most once in every key.

- `<value>` is the value for the specified `<tag>`. The number of distinct tag values should be kept at a minimum. So for example for tag "rack" only "1" should be used as the value, not "one", "rack1" or something else.

Example: `-temperature-source.cpu-id.1`

***Description*-field**:

If the key field is of non use for the translation information it
can be inserted into the description field instead with the format:

Format: `|key:<metricname>(-<tag>.<value>)*|`

Example: `|key:temperature-source.cpu-id.1|`

If no metric is specified in either the **key**- or **description**-field
for a Zabbix item it is not forwarded to Kafka.

Metric names, tag names and values are case sensitive and can only
contain the following characters: alphanumeric characters, period ".",
slash "/", dash "-", and underscore "\_". In our installation "." cannot
be used because it is used as the separator between tag-key and tag-value
in the item key.

There is one more place where information can be of interest and that is
in the items name. This is the case when we have equipment that span
multiple racks. The Raritan gateways have different temperature sensors
that are located on different racks other than the location of the
gateway. To make it clear from the Zabbix user interface the name of
each temperature sensor contains the rack it is located in, e.g. **R01 -
Temperature Front-Top**, which would translate to tag `rack=01`. This also
makes it necessary to have priority rules from where the information is
taken if it exists in multiple locations.

The priority is as follows from highest to lowest:

1.  Item description
2.  Item key
3.  Item name
4.  Hosts name

### Extending Key

Sometime one needs to have multiple keys that are identical in Zabbix
but in the TSDB can be combined with tags that make the series unique.
This is the case when a host can span multiple racks. There can be two
`temperature.source_top` connected to one host, one measuring top
temperature in rack 1 and one in rack 2. Macros are not supported in
keys so the rack number is encoded in the name of the item. The keys
however will be the same and make a collision.

By enabling key extensions with information that is dropped in the
mapping from Zabbix to the TSDB the keys can be made unique. Key
extension is made in the end of the key by the following format:
`<item key>--<extension> <extension>` is any
arbitrary text that conforms with the key schema used by Zabbix. The
`--<extension>` part will be dropped when creating the TSDB
metric and tags.

### Hostname

Host names should be written without any non allowed tag value
characters if possible because they are not allowed in the time series
database. If non allowed characters are used in the host name these will
be replaced with "\_" before insertion into the database.

### Macros

Discovery macros can be used to populate the different tags. But care
has to be taken because all the different kinds of macros aren't
supported in every field. Low level discovery macros can be used in the
item key field but must be enclosed with brackets `"[]"`. This is not an issue
and can be stripped away before insertion is made into the database.
This is how it can look like: `voltage-source.input-id.[{#SNMPINDEX}]`.
Low level macros can be used in the description with no hassle.

### Example data structure

```json
{
  "metric": "temperature",
  "labels": {
    "datacenter": "dclulea",
    "pod": "1",
    "rack": "1",
    "deviceType": "srv",
    "deviceNumber": "1",
    "location": "inlet",
    "unit": "C",
    "type": "default",
    "hostname": "p01r01srv01"
  },
  "@timestamp": "2022-04-14T14:31:24.756Z",
  "timestamp": 1649939484756,
  "host": "zabbix",
  "value": 24
}
{
  "metric": "speed",
  "labels": {
    "datacenter": "dclulea",
    "pod": "1",
    "rack": "1",
    "deviceType": "srv",
    "deviceNumber": "1",
    "source": "psu",
    "id": "2",
    "unit": "GHz",
    "type": "default",
    "hostname": "p01r01srv01"
  },
  "@timestamp": "2022-04-14T14:31:24.756Z",
  "timestamp": 1649939484756,
  "host": "zabbix",
  "value": 2.4
}
{
  "metric": "power",
  "labels": {
    "datacenter": "dclulea",
    "pod": "1",
    "rack": "1",
    "deviceType": "srv",
    "deviceNumber": "1",
    "source": "psu",
    "unit": "W",
    "type": "default",
    "hostname": "p01r01srv01"
  },
  "@timestamp": "2022-04-14T14:31:24.756Z",
  "timestamp": 1649939484756,
  "host": "zabbix",
  "value": 224
}
```