NAS will not boot
The appliance remains offline, loops during startup, beeps continuously or cannot load its management interface.
Network storage reconstruction
NAS Data Recovery
Professional recovery of failed Synology, QNAP and multi-bay NAS systems affected by disk failure, storage-pool corruption, rebuild problems and inaccessible shared data.
Bay order preservedVirtual reconstruction firstVendor-independent recovery
Recognise the warning signs
When a NAS requires professional attention
NAS systems combine multiple disks, RAID, Linux volume management and vendor-specific metadata. A wrong repair action can affect the entire storage pool rather than one drive.
Storage pool is degraded or crashed
The NAS reports a degraded, inactive, missing, read-only or crashed storage pool or volume.
Multiple disk warnings
One or more member disks show bad sectors, SMART alerts, abnormal status or disappear intermittently.
Failed or interrupted rebuild
A RAID rebuild, expansion, migration or disk replacement stopped, failed or made shared folders inaccessible.
Shared folders disappeared
The NAS is reachable but business folders, iSCSI LUNs, snapshots or user data are missing or corrupted.
Firmware update or reset problem
A firmware update, factory reset, accidental initialization or configuration change left the system inaccessible.
NAS and storage-pool expertise
Platforms and failure scenarios we handle
Mind Merge reconstructs NAS storage from preserved member images, accounting for vendor metadata, RAID geometry, Linux partitions, logical volumes and the final file system.
- Synology SHR, SHR-2 and standard RAID arrays
- QNAP RAID groups, storage pools and static volumes
- RAID 0, 1, 5, 6, 10 and JBOD NAS configurations
- Btrfs, EXT4, XFS and Linux-based NAS file systems
- iSCSI LUNs, snapshots, shared folders and virtual-machine storage
- SATA HDD, enterprise HDD, SSD cache and mixed-member systems
Degraded, crashed or missing arrays
Inactive pools, lost volumes, missing members and unavailable shared folders.
Failed or unstable member disks
Bad sectors, head failure, firmware faults and intermittent SATA members.
Reset, migration and rebuild damage
Wrong replacements, interrupted expansion, stale parity and accidental initialization.
Btrfs, EXT4 and LUN corruption
Damaged file systems, snapshots, iSCSI storage, databases and virtual machines.
Recovery capability matrix
NAS recovery coverage
The complete storage stack is reconstructed virtually before folders and application data are extracted.
| NAS configuration | Disk imaging | RAID analysis | Pool reconstruction | File-system recovery | Folder / LUN extraction |
|---|---|---|---|---|---|
| Synology SHR / SHR-2 | ✓ | ✓ | ✓ | ✓ | ✓ |
| QNAP storage pools | ✓ | ✓ | ✓ | ✓ | ✓ |
| RAID 1 / 5 / 6 / 10 | ✓ | ✓ | ✓ | ✓ | ✓ |
| JBOD / spanning | ✓ | ✓ | ✓ | ✓ | ✓ |
| Btrfs / EXT4 / XFS | ✓ | ✓ | ✓ | ✓ | ✓ |
Controlled recovery workflow
How professional NAS recovery works
Original disks remain protected while the NAS storage stack is reconstructed in a controlled environment.
Document the appliance and every disk
The NAS model, bay order, disk labels, alerts and recent changes are recorded before any recovery work begins.
Acquire stable member images
Each disk is assessed and imaged independently so weak media can be handled safely without relying on the original NAS.
Analyse NAS metadata and RAID geometry
Engineers identify member order, RAID level, stripe size, parity layout, Linux partitions, storage pools and vendor metadata.
Reconstruct the storage pool virtually
The array, volume manager and file system are rebuilt in a controlled environment without writing to original disks.
Validate folders, LUNs and business data
Recovered shares, databases, virtual machines and user files are checked for integrity before secure delivery.
Protect your recovery options
What not to do after a NAS failure
Stop all write activity and preserve the exact bay order. The safest next step is diagnosis—not experimentation inside the storage manager.
Initialization can create new partitions, arrays and file systems over recoverable metadata.
A rebuild can fail on another weak member and may overwrite parity or stale-but-useful data.
Label every drive by bay number before removal and keep all failed, replacement and spare disks.
Repair utilities can modify Btrfs, EXT4, LVM and RAID structures before the original state is preserved.
Firmware changes rarely repair failed media and may alter configuration or storage metadata.
Recovered data must be saved to separate storage, never to the affected NAS or member disks.
NAS manufacturer ecosystem
Recovery across major NAS platforms
We work with common home, SME and enterprise NAS appliances. Recovery is based on the disks and storage architecture—not dependence on the original enclosure.
Synology
QNAP
Western Digital
Netgear ReadyNAS
Asustor
TerraMaster
Buffalo TeraStation
Drobo
Thecus
Seagate NASSynology • QNAP • Western Digital • Netgear ReadyNAS • Asustor • TerraMaster • Buffalo TeraStation • Drobo • Thecus • Seagate NAS
All trademarks and logos belong to their respective owners. They are displayed only to identify commonly handled products. Mind Merge is an independent professional data recovery company and is not affiliated with or endorsed by the manufacturers shown.
Frequently asked questions
NAS recovery questions
Early decisions matter. Stop the NAS and preserve every original disk before attempting repair, reset or rebuild operations.
Should I replace a failed NAS disk and start a rebuild?
Not when the data is critical or another disk may be weak. Rebuilds place sustained load on every surviving member and can overwrite useful data when the wrong disk, order or configuration is used.
Can you recover a Synology NAS with a crashed storage pool?
Yes, in many cases. We analyse SHR or RAID metadata, Linux partitions, LVM structures, Btrfs or EXT4 file systems and the condition of every member disk before reconstructing the storage pool virtually.
Can QNAP shared folders and iSCSI LUNs be recovered?
Often yes. Recovery can include RAID groups, storage pools, static or thick volumes, shared folders, iSCSI LUNs and virtual-machine data, depending on overwrite and media condition.
Do you need the NAS enclosure?
Send the enclosure, power supply and every original disk whenever possible. The disks contain the primary data, while the appliance can provide model, configuration and firmware context.
Can data be recovered after a factory reset or reinitialization?
Potentially. Success depends on what the reset changed and whether new storage pools, volumes or data were written afterward. Stop using the NAS immediately to reduce overwrite.
Should I remove disks from their bays?
Only after clearly labelling each disk by bay number. Never mix the order. Include failed, replaced and spare disks because each may contain important metadata or data stripes.
NAS offline or storage pool crashed?
Power it down and preserve the bay order.
Contact Mind Merge before replacing more disks, rebuilding the array or initializing the appliance. We will help protect the safest recovery path.