Question

You would like to add technology that would enable continued access to files located on the server even if a hard drive in a server fails. What control allows you to add robustness without adding additional servers?

1) Server clustering
2) Load balancing
3) RAID
4) Scheduled backups

Answer 1

To ensure continued access to files on a server even with a hard drive failure, RAID (Redundant Array of Independent Disks) is used. It combines multiple physical disks into a logical unit for redundancy and performance, allowing for data recovery from the remaining drives in case of a failure.

Step-by-step explanation:

To add robustness to a server without adding additional servers, enabling continued access to files even if a hard drive fails, you would use RAID (Redundant Array of Independent Disks). RAID is a technology that combines multiple physical drives into one logical unit for the purposes of data redundancy and performance improvement. In the event of a hard drive failure, RAID configurations such as RAID 1, RAID 5, or RAID 6 can continue to provide access to data, as they store data in a way that it can be recovered from one or more of the remaining drives.

While server clustering, load balancing, and scheduled backups are valuable in their respective roles, they do not directly enable continued access to files if a server's hard drive fails. Server clustering involves connecting multiple servers to work as a single system; load balancing distributes network or application traffic; and scheduled backups are a means of data recovery, but not real-time data availability in the event of drive failure.