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Difficulty: EasyStorage Drives and RAID Array Issues

A technician is servicing a system whose primary data storage volume is configured as a RAID 1 array. Hardware diagnostics indicate that one of the two drives has failed, causing the array to enter a degraded state while remaining operational. Which TWO of the following actions should the technician take to resolve this issue and restore redundancy?

  1. Replace the failed disk with a operational drive of equal or greater capacity.Answer
  2. B
    Format the remaining healthy drive to clear array status errors.
  3. Initiate an array rebuild process to synchronize data to the replacement drive.Answer
  4. D
    Convert the array to a RAID 0 configuration to eliminate disk parity overhead.

Answer

The technician should replace the failed disk with a functional drive of equal or greater capacity and initiate an array rebuild process to mirror data onto the new disk.
Restoring fault tolerance to a degraded RAID 1 array requires replacing the faulty member with a drive of adequate capacity and triggering a rebuild to copy mirrored data over to the new disk.

Step-by-Step Solution

1
Identify and remove the damaged drive.
The degraded RAID 1 array maintains operations on the remaining healthy drive.
Faulty hardware must be physically replaced before array synchronization can take place.
2
Install a new drive with equal or greater storage capacity.
The storage system detects a suitable target drive for synchronization.
RAID mirroring requires the replacement drive to have at least as much capacity as the original drive.
3
Initiate the RAID rebuild operation via the controller utility.
Data from the operational drive is copied to the new drive until fault tolerance is restored.
Rebuilding synchronizes the two disks to re-establish full RAID 1 redundancy.

Key Concept

Degraded RAID 1 Recovery and Redundancy Restoration
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Topics

Storage Drives and RAID Array Issues

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