A Chief Information Officer (CIO) has summoned an administrator due to the datacenter power bill being significantly higher than normal. The administrator explains that a new array was installed for…

SSDs contain no moving mechanical parts, so they consume far less electricity and generate less heat than SAS or SATA spinning hard drives. For a 20TB CRM array, replacing spinning disks with SSDs reduces power draw substantially while delivering higher IOPS and lower latency.

SAS drives are high-speed spinning disks that draw more power than SSDs, so replacing the array with SAS would worsen, not reduce, the power bill.

SATA drives are spinning disks that consume more power than SSDs and offer lower performance than SAS, providing neither a meaningful power reduction nor a performance improvement for a CRM workload.

Fibre Channel is a high-speed storage networking protocol used to connect servers to storage arrays, not a drive technology, and switching to it does not reduce drive-level power consumption.