CompTIA Linux+ (XK0-004) — Question 212

A systems administrator wants to increase the existing drive space on a Linux server with a software RAID. After physically adding the new drive to the system, and then adding the drive to the RAID array, the administrator notices the available drive space has not increased. A status of the array shows the new drive and the original storage space: md0 : active Raid sdd1[3]S sdc1[2] sdb1[1] sda1[0]
954585654 blocks level5 64K chunk algorithm 2 [3/3] [UUU]
Which of the following should the administrator do to make all storage space available on the RAID array?

Answer options

• A. Run hdparm to alert the kernel to a new drive.
• B. Convert the new drive to a hot spare.
• C. Set the RAID type to a RAID 1.
• D. Grow the array size to four members.

Correct answer: D

Explanation

The correct answer is D because the RAID array needs to be grown to recognize the additional drive and utilize its space. Options A and B do not address the need to increase the array's size, while option C would change the RAID level but not expand the available storage.