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Zorluk: OrtaStorage Drives and RAID Array Issues

A network administrator receives an automated alert indicating that a hard drive in a server's hot-swappable hardware RAID 5 array has failed, leaving the volume in a degraded state. Arrange the troubleshooting and recovery steps below in the correct sequential order to safely replace the drive and restore array fault tolerance.

  1. 1Identify the exact physical slot of the failed disk using the RAID controller console and drive status indicators.
  2. 2Perform a complete data backup of the degraded RAID volume to secondary storage.
  3. 3Remove the failed drive from its hot-swap bay and install a replacement drive of equal or greater capacity.
  4. 4Initiate the array rebuild process using the RAID management software or controller interface.
  5. 5Monitor the rebuild progress until the RAID array status returns to optimal.

Cevap

The correct sequence of steps is: 1) Identify the exact physical slot of the failed disk using controller tools and status LEDs; 2) Perform a complete data backup of the degraded RAID volume; 3) Remove the failed drive and install a replacement drive of equal or greater capacity; 4) Initiate the array rebuild process in the RAID management interface; 5) Monitor the rebuild progress until the array status returns to optimal.
The correct procedural order ensures data safety and array integrity. First, the technician identifies the specific failed disk using management software and LEDs to avoid pulling a healthy drive. Second, backing up the degraded volume secures data in case a second drive fails during heavy read operations. Third, the failed drive is physically swapped out for a new one. Fourth, the rebuild operation is started in the controller interface. Finally, monitoring the process until optimal status is reached verifies that parity synchronization completed successfully.

Adım Adım Çözüm

1
Locate and confirm the failed disk using controller tools and status LEDs.
Prevents accidental removal of an operational drive from a degraded array.
Pulling a healthy drive from a degraded RAID 5 array causes immediate total array failure and data loss.
2
Backup all data on the degraded RAID array immediately.
Protects array data against potential secondary drive failure.
Rebuilding RAID parity puts intensive read stress on remaining disks, increasing the risk of secondary drive failure.
3
Hot-swap the faulty hard drive with a healthy drive of matching or larger capacity.
Provides the necessary physical storage for parity reconstruction.
A functional target drive must be physically connected to allow parity data sync.
4
Start or confirm the parity rebuild operation via the RAID utility.
Begins reconstructing parity data across the array onto the replacement disk.
Hardware RAID controllers require initiation or auto-detection to begin writing parity data.
5
Monitor the progress until array status reports optimal health.
Confirms array fault tolerance is restored.
Ensures that the rebuild completed without unrecoverable read errors or interruptions.

Anahtar Kavram

Hot-Swap RAID 5 Drive Replacement and Parity Rebuild Procedure
Tahmini Süre:1m 30s
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Storage Drives and RAID Array Issues

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