Synology NAS 12-Disk Array Data Recovery – Power Supply Failure

Background

A video production company in Bristol experienced a critical failure with their Synology NAS system, configured with a 12-disk RAID 6 array, when the power supply failed. The failure caused the entire system to become non-operational, and the disks were no longer recognised when attempting to reboot the Synology system. The NAS housed terabytes of essential video files, editing projects, and client archives. With no backups, the company contacted Bristol Data Recovery, Bristol’s best data recovery company, leveraging 25 years of expertise to recover their crucial data.

The Problem

The Synology NAS failure involved:

  1. Power Supply Failure:
    • A power surge caused the Synology NAS’s power supply unit (PSU) to fail, shutting down the system abruptly.
  2. Array Configuration Loss:
    • The abrupt shutdown corrupted the RAID metadata, preventing the array from being recognized by the Synology operating system.
  3. No Disk Recognition:
    • Although the individual drives were physically intact, none were detected by the NAS due to corrupted RAID metadata.
  4. No Backup:
    • The NAS system was the primary and sole repository for the company’s data.

The Data Recovery Process by Bristol Data Recovery

Step 1: Initial Assessment

The recovery team conducted a comprehensive evaluation:

  • Disk Health Diagnostics:
    • All 12 drives were removed from the NAS and tested individually for physical and logical health. One drive exhibited bad sectors, while the others were intact.
  • RAID Configuration Analysis:
    • The RAID 6 configuration (e.g., stripe size, parity rotation, and disk order) was manually extracted from the functional drives’ metadata.
  • Data Preservation:
    • A sector-by-sector clone was created for each drive to prevent further damage and to ensure original drives remained untouched.

Step 2: RAID Reconstruction

The RAID array was virtually rebuilt:

  • Virtual Array Reconstruction:
    • Using the disk images, a virtual RAID 6 array was reconstructed in a controlled environment. Advanced algorithms were used to recalculate missing parity data from the damaged drive.
  • Metadata Repair:
    • Corrupted RAID metadata was repaired to restore the original configuration, enabling access to the logical structure of the array.
  • File System Recovery:
    • The ext4 file system used by the Synology NAS was analysed and repaired to reconstruct directory structures and metadata.

Step 3: Data Extraction

  • Critical File Recovery:
    • Video files, editing projects, and client archives were prioritized for extraction based on client requirements.
  • Complete Data Recovery:
    • All accessible files were systematically recovered, including partially damaged files that were reconstructed using proprietary tools.

Step 4: Validation and Delivery

  • File Integrity Check:
    • All recovered files were verified for integrity and tested to ensure they were complete and usable.
  • Secure Delivery:
    • The recovered data was transferred to a new NAS system provided by the client, pre-configured and set up by Bristol Data Recovery.

Challenges Faced

  1. RAID Metadata Corruption:
    • Repairing the corrupted RAID metadata and reconstructing the array required advanced tools and expertise.
  2. Drive Degradation:
    • One drive had significant bad sectors, complicating the RAID reconstruction process.
  3. Large Data Volume:
    • The 12-disk RAID 6 array contained multiple terabytes of data, requiring optimized recovery methods to handle the volume efficiently.

Outcome

Bristol Data Recovery successfully:

  • Recovered 99% of the data, including all critical video files, editing projects, and client archives.
  • Delivered the recovered files within 7 days, minimizing downtime for the video production company.
  • Provided recommendations for implementing a robust backup and surge protection strategy.

Lessons Learned

  1. RAID is Not a Backup:
    • Always maintain an external or cloud-based backup solution, especially for mission-critical data stored in RAID arrays.
  2. Use a UPS System:
    • A reliable uninterruptible power supply (UPS) can protect NAS systems from power surges and sudden outages.
  3. Act Quickly:
    • Powering on a failed NAS repeatedly can worsen metadata corruption. Seek professional assistance immediately.

Why Choose Bristol Data Recovery?

  • 25 Years of Experience:
    • Decades of expertise in recovering data from RAID arrays and Synology NAS systems.
  • RAID Specialists:
    • Advanced tools and techniques for RAID reconstruction, parity recalculation, and metadata repair.
  • Fast Turnaround:
    • Emergency services designed to meet time-sensitive recovery needs.

This case demonstrates Bristol Data Recovery’s ability to handle complex Synology NAS and RAID failures, ensuring clients regain access to their critical data securely and efficiently.

unied spacer dell spacer donoghue spacer edinbvrgh spacer uniab spacer glasgo spacer barclays spacer synery spacer bcla spacer cannon spacer dyson spacer fulhamcouncil spacer londonarts spacer mercedes spacer merton spacer neoedge spacer nhs spacer pinewood spacer singleshot spacer stalbans spacer sutton spacer fulhamcouncil vodafone spacer