https://blogs.oracle.com/mysql/selinux-and-mysql-v2

RAID 5 configuration: Using five of the available drives in a RAID 5 configuration meets the requirements for:
Storage capacity: Four 600GB drives (2, 5, and 6) provide a total usable capacity of 2.4TB (4 * 600 * 0.8), exceeding the minimum requirement of 2TB. RAID 5 introduces parity data for fault tolerance, sacrificing some usable space (one drive's worth).
Performance: The combination of multiple drives in a RAID 5 array improves read performance compared to a single drive setup.
Fault tolerance: Even with a single drive failure (any of the five drives used in the RAID 5), the remaining drives can reconstruct the lost data, allowing the server to continue operating.

This is the best way to proceed with troubleshooting when the technician has several possible solutions to a reported server issue.
Making one change at a time and testing allows the technician to isolate the cause and effect of each solution and determine which one works best.
It also helps to avoid introducing new problems or complicating existing ones by making multiple changes at once.
Determining whether there is a common element in the symptoms causing multiple problems is a good step to perform before identifying possible solutions, but not after.
Performing a root cause analysis is a good step to perform after resolving the issue, but not during. Documenting the findings, actions, and outcomes throughout the process is a good practice to follow at every step of troubleshooting, but not a specific way to proceed with testing possible solutions.
References:
https://www.howtogeek.com/174288/how-to-tell-if-your-computer-is-overheating-and-what-to-do-about-it/
https://www.howtogeek.com/428483/what-is-end-to-end-encryption-and-why-does-it-matter/

CIFS (Common Internet File System) is a protocol that allows file sharing across different operating systems, such as Unix and Windows. It supports read and write access to files and folders on a network share. It is also known as SMB (Server Message Block). Verified References: [CIFS], [File sharing]

% are used for variables in Microsoft. $ are Linux/Unix.