Explanation
The technician should configure RAID 6 for this drive array to meet the server specifications. RAID 6 is a type of RAID level that provides fault tolerance and performance enhancement by using striping and dual parity. Striping means dividing data into blocks and distributing them across multiple disks to increase speed and capacity. Parity means calculating and storing extra information that can be used to reconstruct data in case of disk failure. RAID 6 uses two sets of parity information for each stripe, which are stored on different disks. This way, RAID 6 can handle up to two disk failures without losing any data or functionality. RAID 6 also allows for the least amount of drive space lost to RAID overhead compared to other RAID levels that can handle two disk failures, such as RAID 1+0 or RAID 0+1.

PowerShell is a scripting language and a command-line shell that is designed for Windows server administration. It can perform various tasks such as configuration, automation, and management of servers and applications. Verified Reference: [PowerShell], [Scripting language]

Comprehensive Detailed Explanation with all CompTIA Server+ SK0-005 Study Guide References:
Blanking panels are used to fill empty spaces in server racks. By blocking airflow gaps between servers, blanking panels help to direct airflow properly, ensuring that the cold air from the cold aisle is not wasted and that the hot air from the hot aisle is contained. This is crucial for maintaining the efficiency of cooling systems in a hot/cold aisle configuration.
* Rack balancing addresses the physical distribution of equipment, but it does not directly address thermal issues.
* Higher-capacity PDUs (Power Distribution Units) provide more power, but they do not address cooling or airflow problems.
* Rail kits are used for mounting servers and are unrelated to cooling efficiency.

The solution the administrator implemented extended runtime. Runtime is the amount of time that a UPS can provide backup power to a server in case of a power outage. By installing additional batteries in the UPS, the administrator increased the capacity and duration of the backup power, allowing the server more time to shut down properly.