## 3 Methodology
### Datasets and Descriptions
\begin{table}
\begin{tabular}{c c c} \hline \hline
**No.** & **Feature’s Name** & **Descriptions** \\ \hline
21 & sys\_airflow & System airflow of nodes measured in cubic feet to minute (CFM. \\ \hline
22 & exh\_temp & Exhaust temperature that is air exit of the nodes in \({}^{\circ}\)C. \\ \hline
23 & amb\_temp & A temperature near the computing nodes or data center room operating temperature. \\ \hline
24 & dcapergy & Data center energy demand meter consumed up to the next reading. \\ \hline
25 & supply\_air & Cold air/inlet temperature (\({}^{\circ}\)C) that belongs from CRAC to regular airflow rate (RPM) in DC \\ \hline
26 & return\_air & Ejected heat or warm air back from racks to the outside (\({}^{\circ}\)C). \\ \hline
27 & relative\_umidity & Working/Operating humidity of the CRAC (\({}^{\circ}\)C). \\ \hline
28 & fan\_speed & Cooling system fan speed within the CRAC to regulate airflow rate within the DC (RPM). \\ \hline
29 & cooling & Cooling working intensity of the DC (\%). \\ \hline
30 & free\_cooling & Not applicable/ values represented as 0. \\ \hline
31 & hot103\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
32 & hot103\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
33 & hot101\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
34 & hot101\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
35 & hot111\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
36 & hot111\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
37 & hot117\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
38 & hot117\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
39 & hot109\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
40 & hot109\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
41 & hot119\_temp & Environmental hot temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
42 & hot119\_hum & Environmental humidity temperature sensor installed around the nodes (\({}^{\circ}\)C). \\ \hline
43 & cold107\_temp & Cold temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
44 & cold107\_hum & Cold working humidity sensor installed around the computing node (\({}^{\circ}\)C).) \\ \hline
45 & cold105\_temp & Cold temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
46 & cold105\_hum & Cold working humidity sensor installed around the computing node (\({}^{\circ}\)C).) \\ \hline
47 & cold115\_temp & Cold temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
48 & cold115\_hum & Cold working humidity sensor installed around the computing node (\({}^{\circ}\)C).) \\ \hline
49 & cold113\_temp & Cold temperature sensor installed around the computing node (\({}^{\circ}\)C). \\ \hline
50 & cold113\_hum & Cold working humidity sensor installed around the computing node (\({}^{\circ}\)C).) \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._different sections of the nodes (e.g., CPU, RAM, fans, rotation speeds, and the volume of air passing through the nodes) and the energy demand. The data are read via an intelligent platform management interface (IPMI), which is a CONFLUENT software package directly installed on the cluster computing nodes and stores the acquired values in a MySQL database. Cooling system parameters such as inlet temperature, outlet temperature, relative humidity, airflow, and fan speed are also monitored using the onboard sensors of the refrigerating machine.