Experts in TerraMaster RAID 0 Data Recovery | 25 Years of Industry Experience
At Coventry Data Recovery, we specialise in complex RAID 0 recovery scenarios including out-of-sync RAID arrays caused by drive order issues, stripe size misalignment, or degraded sectors. With over 25 years of data recovery experience, we are the trusted specialists for recovering inaccessible data from failed TerraMaster NAS RAID 0 systems, including 4-disk configurations.
Common Fault: RAID 0 Out of Sync – Stripe Misalignment or Incorrect Drive Order
RAID 0 offers high-speed performance by striping data across multiple drives. However, unlike other RAID levels, RAID 0 has no fault tolerance. If the drives are accessed in the wrong order or the stripe size is incorrectly interpreted—especially after firmware updates, disk reordering, or controller resets—the array will become unreadable and critical data inaccessible.
Technical Recovery Procedure: Step-by-Step Process
Step 1: Drive Evaluation and Sector-Level Imaging
- Each of the four TerraMaster disks is write-protected and imaged using professional-grade hardware imagers such as DeepSpar or PC-3000.
- Drives are checked for bad sectors, SMART errors, and inconsistencies.
- Any unstable disks are stabilised in a cleanroom environment and imaged with ECC-recovery passes to maximise sector capture.
Step 2: Identification of RAID Metadata
- We analyse RAID metadata, if present, or perform manual analysis to determine:
- Stripe size (e.g. 64KB, 128KB, etc.)
- Drive order within the array
- Starting offset and interleave pattern
- This is achieved through tools such as UFS Explorer, R-Studio Technician, or proprietary forensic RAID emulation platforms.
Step 3: Virtual Reconstruction of the RAID 0 Array
- A virtual RAID 0 volume is constructed using the confirmed parameters.
- Multiple configurations may be tested if metadata is missing or inconsistent, using sample pattern analysis and entropy mapping of known files.
- Once correct alignment is achieved, data structures like file tables (e.g. NTFS MFT or EXT4 superblock) are checked for integrity.
Step 4: File System Integrity Repair and Recovery
- With the RAID now virtually restored, the file system is scanned and repaired where necessary.
- Logical issues such as partially overwritten file records, corrupted volume headers, or orphaned file chains are corrected using non-destructive recovery tools.
- Lost files are recovered and rebuilt, preserving folder structure and metadata wherever possible.
Step 5: Data Export and Validation
- Recovered files are extracted to a new secure backup medium.
- File verification includes format validation, checksum comparison (optional), and visual review of critical files.
- Data is returned on a client-provided or supplied encrypted drive.
Supported TerraMaster RAID Systems
We recover RAID 0 data from the full range of TerraMaster NAS enclosures and 4-bay systems, including:
- TerraMaster F4-210
- TerraMaster F4-220
- TerraMaster F4-421
- TerraMaster D4-300
- TerraMaster F4-423
- TerraMaster D5-300C
Supported Systems and Configurations
Operating Systems:
- Windows Server & Desktop
- macOS / macOS Extended (HFS+, APFS)
- Linux (EXT3, EXT4, XFS, Btrfs)
- Unix (UFS, ZFS)
RAID Controller Types:
- TerraMaster built-in Linux-based software RAID
- Hardware-assisted RAID via external TerraMaster interfaces
- USB-C or eSATA multi-disk enclosures
Why Choose Coventry Data Recovery?
✅ 25 Years of RAID Recovery Expertise
✅ Advanced Hardware-Based Imaging – Ideal for degraded sectors
✅ Full Virtual Reconstruction of corrupted or misaligned arrays
✅ RAID 0 Reconstruction Specialists – Even in cases with no metadata
✅ Free Diagnostic & No Fix No Fee Policy
Book a Free RAID 0 Diagnostic Today
If your TerraMaster RAID 0 system is no longer accessible, or your data appears corrupt or unreadable, do not reinitialise, reconfigure, or attempt software rebuilds. These can permanently destroy recoverable data.
Contact Coventry Data Recovery today for a full professional diagnostic and trusted RAID 0 recovery solution.