Asustor Lockerstor NAS systems are commonly used by businesses for secure data storage and redundancy, with RAID 10 providing both performance and fault tolerance. However, NAS systems can become stuck in a boot loop due to firmware corruption, RAID metadata issues, or partition table errors, making critical business data inaccessible.
This case study details how we successfully recovered business-critical data from a 6-disk Asustor Lockerstor NAS in RAID 10, which failed to boot due to firmware corruption. The system contained vital veterinary patient records and financial data for a local veterinary clinic.
As Ireland’s oldest and most experienced data recovery company, we used RAID reconstruction and firmware repair techniques to retrieve the lost files.
The Challenge: NAS Stuck in Boot Loop & Inaccessible Business Data
A local veterinary clinic contacted us after their Asustor Lockerstor NAS failed to start properly. The reported issues included:
- NAS repeatedly restarting instead of booting to the storage system.
- The RAID 10 array was inaccessible, preventing access to patient records and invoices.
- The Asustor web interface was unresponsive, blocking remote recovery attempts.
- NAS manufacturer support suggested a reset, which risked permanent data loss.
Since the NAS stored years of business data, an immediate and professional recovery solution was required.
Diagnosis & Evaluation
When the Asustor Lockerstor NAS arrived at our cleanroom facility, we conducted a full RAID and firmware-level diagnostic. Our findings:
- Corrupt NAS firmware – The boot partition was damaged, preventing the system from starting.
- RAID metadata inconsistencies – The system lost track of the RAID 10 configuration, causing potential data misalignment.
- Healthy but inaccessible hard drives – All six disks were intact, meaning the data was recoverable with manual RAID reconstruction.
Since RAID 10 combines mirroring and striping, we needed to rebuild the array manually while preserving data integrity.
The Recovery Process
1. Cloning & Imaging All RAID 10 Disks
To prevent further corruption, we:
- Removed and individually imaged all six NAS hard drives.
- Created sector-by-sector clones to preserve the original data structure.
- Checked for drive degradation or bad sectors to avoid further complications.
2. Manually Rebuilding the RAID 10 Array
Since the RAID metadata was corrupted, we:
- Reconstructed the RAID 10 configuration manually using forensic-level RAID tools.
- Restored disk mirroring and striping patterns to ensure data consistency.
- Mounted the RAID volume outside the NAS system to extract the stored files.
3. Extracting & Verifying Veterinary Clinic Data
Once the RAID array was successfully rebuilt, we:
- Recovered patient records, appointment schedules, and invoices.
- Verified all files for corruption or missing data.
- Transferred the recovered data to a secure external storage device for the veterinary clinic.
The Results: 100% Data Recovery Success
Thanks to our RAID 10 reconstruction and firmware repair techniques, we successfully recovered 100% of the veterinary clinic’s data, including:
✅ Patient medical records & treatment histories
✅ Financial documents & invoices
✅ Staff scheduling & clinic administration files
The veterinary clinic was able to continue operations without any data loss, ensuring no disruption to patient care.
Why Choose Us?
With 25 years of experience and tens of thousands of successful recoveries, we are the leading NAS and RAID data recovery specialists in Ireland and the UK. Our expertise includes:
✔ Asustor Lockerstor RAID 10 recovery
✔ Firmware corruption & boot failure repairs
✔ NAS RAID 0, 1, 5, 6, and 10 reconstruction
✔ Secure & confidential data recovery for businesses
If your Asustor NAS is stuck in a boot loop, showing RAID errors, or failing to mount, do not attempt a factory reset—contact us immediately for professional data recovery.