Coventry Data Recovery – QNAP NAS Data Recovery Specialists

Accidentally Converted RAID 10 to Another RAID Level – Data Now Inaccessible
Over 25 Years of RAID & NAS Data Recovery Expertise

At Coventry Data Recovery, we specialise in professional QNAP NAS data recovery services, including complex scenarios such as accidental RAID level conversion. If you’ve reconfigured a RAID 10 array on your QNAP TS-233, rendering the data inaccessible, we have the expertise and technical infrastructure to recover your critical information.

🔧 Understanding the Problem: RAID 10 Accidentally Converted

The QNAP TS-233 supports multiple RAID levels. When a RAID 10 (a combination of striping and mirroring) is mistakenly converted to another RAID level (e.g., RAID 0, 5, or JBOD), the original metadata, disk ordering, and volume layout can become overwritten or partially corrupted. This results in:

  • Inaccessibility of the logical volume
  • Missing or unreadable data
  • Partial or complete file system corruption

🛠️ Step-by-Step Recovery Process

At Coventry Data Recovery, we follow a structured forensic recovery workflow when dealing with RAID configuration errors on QNAP NAS systems:

1. Initial Evaluation

  • Confirm RAID configuration history using user reports, QNAP logs, and NAS system metadata.
  • Identify the original array’s RAID level, stripe size, disk order, and volume structure (before conversion).

2. Write Protection & Drive Imaging

  • All physical drives from the TS-233 are removed and individually write-protected.
  • Each disk is imaged using sector-level hardware imagers (e.g. PC-3000 or DeepSpar), preserving the current state and creating clones for recovery work.

3. Metadata Analysis

  • Analyse QNAP-specific system partitions (e.g., /mnt/HDA_ROOT) for RAID configuration records.
  • Attempt to locate remnants of the original RAID 10 structure by scanning for RAID headers and parity-free striping patterns.

4. Manual RAID Reconstruction

  • Reconstruct the original RAID 10 layout virtually using advanced software tools.
  • Striping and mirroring layouts are rebuilt based on sequence and data pattern verification.
  • Rebuild a virtual RAID 10 array with the correct drive order and block size.

5. File System Recovery

  • Scan the reconstructed volume for file system signatures (EXT4, BTRFS depending on firmware version).
  • Identify and repair directory structure damage caused by the RAID misconfiguration.
  • Recover deleted or overwritten superblocks if necessary using heuristic scanning techniques.

6. Data Validation & Extraction

  • All recovered files are checked for integrity and restored to a new backup drive.
  • We provide a file listing for verification prior to final delivery.

💻 Supported QNAP Systems

We recover data from all QNAP models and RAID levels, including:

  • QNAP TS-233, TS-431K, TS-453D, TS-873A
  • Enterprise-class units like TS-h886, TVS-x72XT, and rackmount models
  • All legacy and current QTS and QuTS Hero operating systems

🧰 Supported RAID Levels & File Systems

We support recovery from all standard and hybrid QNAP configurations:

  • RAID 0, 1, 5, 6, 10, JBOD, and Single Disk
  • EXT3, EXT4, BTRFS, ZFS (QuTS Hero)
  • Encrypted QNAP volumes (with user-provided credentials)

🔍 Common Causes of QNAP RAID Failures We Recover From

In addition to RAID conversion issues, our team recovers QNAP NAS data lost due to:

  • Accidental RAID Rebuilds
  • Failed RAID Expansion
  • Power Surges Causing Drive or PCB Failure
  • QTS Firmware Corruption
  • Disk Sync Failures or Rebuild Interruptions
  • NAS Device Not Booting or Showing “RAID Missing”
  • Volume Crashes or Shared Folders Not Mounting
  • Bad Sector Accumulation Across Multiple Drives

🏆 Why Choose Coventry Data Recovery?

  • 25 Years in Advanced Data Recovery
  • QNAP-Specific Recovery Toolsets & Imaging Equipment
  • No Fix – No Fee Policy
  • Certified Cleanroom Facilities for Hardware Recovery
  • Extensive Experience with RAID 10, Hybrid RAID, and ZFS/BTRFS Systems

🚀 Start Your QNAP TS-233 RAID Recovery Now

If your QNAP TS-233 RAID 10 has been accidentally converted or corrupted, do not attempt to rebuild or reinitialise the array. This could permanently overwrite recoverable data.

Contact Coventry Data Recovery today for a free diagnostic. Our engineers are ready to assist with fast, professional QNAP NAS data recovery.

Coventry Data Recovery – The Experts in QNAP RAID Recovery
Specialists in RAID 10 to RAID 0 Recovery Reversal & Logical Rebuilds