A business in Birmingham using a G-RAID NAS system with a 4-disk RAID 5 configuration (4 x WD Red NAS drives) experienced a critical RAID failure after attempting a drive replacement. The key issues included:

• One of the WD Red NAS drives originally failed, prompting a replacement.
• The RAID 5 rebuild process did not start, leaving the NAS in an unrecoverable state.
• The NAS system was inaccessible, preventing access to business-critical files.
• No backup was available, making RAID data recovery essential.

Since a failed RAID rebuild can lead to data corruption or complete RAID failure, an advanced RAID reconstruction approach was necessary.

Our Expertise in G-RAID NAS & RAID 5 Data Recovery

With 25 years of experience, Birmingham Data Recovery specializes in:
✔ Recovering failed RAID 5 arrays after unsuccessful rebuilds
✔ Manually reconstructing RAID structures from degraded or missing disks
✔ Forensic-level recovery of business-critical and enterprise data

Diagnosis & Recovery Process

Upon receiving the G-RAID NAS and its four WD Red NAS drives, our engineers conducted a detailed forensic evaluation. The key findings included:

• The RAID controller did not recognise the replacement drive, causing the rebuild to fail.
• The RAID 5 metadata was corrupted, preventing automatic RAID restoration.
• The remaining three original drives contained intact but inaccessible data.

To successfully recover the client’s essential business files, we implemented a multi-step RAID 5 recovery strategy:

Step 1: Drive Imaging & Data Preservation

• Created sector-by-sector forensic clones of all four WD Red NAS drives to prevent further corruption.
• Ensured no additional writes occurred, preserving recoverable data.

Step 2: RAID Reconstruction & Metadata Repair

• Analysed RAID metadata and disk striping patterns to manually rebuild the RAID 5 structure.
• Used advanced RAID recovery tools to simulate the RAID array without using the failed rebuild process.

Step 3: File System Repair & Data Extraction

• Repaired EXT4/Btrfs file system corruption, allowing access to missing data.
• Extracted and verified business-critical documents, databases, and shared network folders.

Step 4: Data Integrity Check & Secure Transfer

• Conducted final validation checks to ensure all recovered files were complete.
• Successfully transferred the restored data to a new high-capacity NAS device.

The Result

We successfully recovered 99.6% of the client’s business data, including:
✅ Financial records, payroll reports, and business contracts
✅ Client project files, operational data, and archived emails
✅ Database records and shared work folders

The business was able to restore full operations without permanent data loss, avoiding downtime and productivity loss.

Why Choose Birmingham Data Recovery for G-RAID NAS Recovery?

✅ 25 Years of Expertise – Specialists in RAID 5 failure recovery and NAS data restoration.
✅ Forensic-Level RAID Reconstruction – Rebuilding RAID arrays even after failed rebuilds.
✅ Enterprise Data Security – Ensuring confidentiality and full recovery of business files.
✅ Fast & Secure Process – Minimizing downtime and restoring data efficiently.

If your G-RAID NAS system has failed due to RAID corruption, drive failures, or unsuccessful rebuilds, contact Birmingham Data Recovery today for professional assistance!