An essential element of data center and server administration is availability as, in a network, data stores, and communication links are always available, meaning 24 hours a day, 7 days a week. In an electrically powered world, keeping electric devices always available goes beyond backup power units, uninterruptible power systems (UPSs), and generators. Even when electrical power is guaranteed to be always available, there are several other threats to the availability of a system or network. However, in your preparation for the Server+ exam, we should focus on the availability of data storage devices and systems, and particularly their reliability.
RAID is a technical methodology used to improve the availability, reliability, and performance of data storage systems, especially in larger data centers, cloud systems, and high-volume transaction processing systems (TPSs). In...
