CompTIA Server+ (SK0-005) — Question 64

A systems administrator is investigating a server with a RAID array that will not boot into the OS. The administrator notices all the hard drives are reporting to be offline. The administrator checks the RAID controller and verifies the configuration is correct. The administrator then replaces one of the drives with a known-good drive, but it appears to be unavailable as well. Next, the administrator takes a drive out of the server and places it in a spare server, and the drive is available and functional. Which of the following is MOST likely causing the issue?

Answer options

• A. The kernel is corrupt.
• B. Resources are misallocated.
• C. The backplane has failed.
• D. The drives need to be reseated.

Correct answer: C

Explanation

The most likely cause of the issue is a failure in the backplane, which is responsible for connecting the drives to the RAID controller. If the backplane is malfunctioning, it can cause all drives to appear offline, even if they are functional. The other options, such as a corrupt kernel or misallocated resources, are less likely to cause all drives to show as unavailable.