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Difficulty: MediumStorage Drives and RAID Array Issues

A desktop workstation configured with a two-disk RAID 0 storage array using SATA solid-state drives (SSDs) fails to boot, displaying an "Operating System Not Found" error on screen. During POST, the hardware RAID controller utility indicates that the array status is "FAILED" due to a complete disk failure of Drive 1. Which of the following is the most appropriate immediate recovery action for the technician to take?

  1. Replace the failed disk with a new drive of equal or greater capacity and restore the data from a verified external backup.Answer
  2. B
    Initiate an automated array rebuild operation within the hardware RAID controller management utility using the remaining functional disk.
  3. C
    Re-initialize and reformat the remaining operational disk into a degraded array volume to recover the boot partition.
  4. D
    Convert the RAID 0 configuration to a RAID 1 array in the controller firmware to enable emergency data reconstruction.

Answer

Replace the failed disk with a new drive of equal or greater capacity and restore the data from a verified external backup.
RAID 0 stripes data across multiple disks to optimize read and write performance, but it provides zero fault tolerance (0% redundancy). If a single disk in a RAID 0 volume experiences a physical or logical failure, the entire array transitions directly to a failed state, resulting in total data loss across the volume. The only resolution is to physically replace the failed storage drive, re-create the array volume, and restore data from an external backup.

Step-by-Step Solution

1
Analyze the RAID array architecture and failure state.
Identify that the system utilizes RAID 0 (striping), which splits data across member disks without parity or fault tolerance.
Understanding RAID 0 constraints confirms that a single drive failure renders the entire volume unrecoverable through parity rebuilds.
2
Determine the necessary recovery path.
Confirm that physical hardware replacement of the failed drive followed by volume creation and backup restoration is required.
Because no redundant data exists on the surviving member drive, restoring from an external backup source is the only viable method to recover the operating system and user files.

Key Concept

RAID 0 Fault Tolerance and Data Recovery
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Topics

Storage Drives and RAID Array Issues

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