Examkin

Question

Difficulty: EasyStorage Drives and RAID Array Issues

A technician receives a hardware alert indicating that a single mechanical drive in a server's RAID 5 array has failed, placing the storage pool into a degraded state. Which TWO of the following actions should the technician perform to safely restore array redundancy without losing data? (Select TWO)

  1. Replace the failed disk with a spare drive of equal or greater capacity.Answer
  2. B
    Reformat all functional drives in the storage array to clear the degraded error flag.
  3. Initiate a RAID rebuild procedure through the storage management software or controller interface.Answer
  4. D
    Delete the RAID volume configuration and convert the array into a striped RAID 0 set.

Answer

To restore fault tolerance safely, the technician must replace the failed drive with a healthy drive of equal or greater capacity and initiate an array rebuild through the RAID controller interface.
Replacing the faulty member disk with an appropriately sized spare drive and running an array rebuild allows the RAID controller to use surviving disk data and parity blocks to mathematically reconstruct missing data onto the new drive, returning the volume to an optimal status.

Step-by-Step Solution

1
Identify and remove the failed physical disk.
The faulty disk is replaced with a healthy drive that meets or exceeds the minimum required disk capacity.
RAID rebuild operations require a functional physical target disk with sufficient capacity to write reconstructed block data.
2
Trigger the array rebuild using the RAID utility or controller software.
The RAID controller calculates missing data using surviving disks and parity information, writing it onto the new drive.
This process restores full fault tolerance and returns the array status from degraded to optimal without data loss.

Key Concept

Degraded RAID Array Recovery
Estimated Time:1m 0s
Rate this question

Topics

Storage Drives and RAID Array Issues

More questions from this topic