NAS Data Recovery (Synology, QNAP)
NAS offline, degraded volumes, ransomware? We bring your data back — Synology, QNAP, Drobo — without reformatting or overwriting anything.
NAS data recovery at Belgium Data Recovery is done in our Brussels laboratory. Offline NAS, degraded volume, deleted pool or ransomware attack: we clone each disk that is needed, read-only, and reassemble the NAS software stack (mdadm RAID + LVM + Btrfs, ext4 or ZFS) outside the original box — without reformatting or overwriting anything. Synology, QNAP, WD My Cloud, Buffalo, Asustor, TerraMaster and Drobo. In the majority of cases, the data is recovered. Free diagnosis, from €490 excl. VAT per disk to clone — a mirrored 2-bay NAS usually counts as a single disk —, payment only if successful (No Cure, No Pay), no surcharge if you need your data fast. Belgium Data Recovery successfully recovers data for more than 450 clients every year, all media combined — several thousand since 2012.
An offline NAS can halt an entire business. We bring your volumes back on Synology, QNAP, Western Digital My Cloud, Buffalo, Asustor, TerraMaster and Drobo — Btrfs, ext4 and ZFS file systems, degraded RAID or ransomware — without reformatting or overwriting a single disk.
Brands & models we handle
- Synology
- QNAP
- WD My Cloud
- Buffalo TeraStation
- Asustor
- TerraMaster
- Drobo
- Btrfs / ext4 / ZFS
Do you recognise these signs?
- NAS offline, degraded or failed volumes
- Multiple NAS drives failed simultaneously
- Firmware update corrupted the file system
- Network share inaccessible — data locked on the server
- Accidental volume deletion or factory reset
- Ransomware attack — files encrypted on the NAS
What you should never do with a failed device
- Don't reset the NAS or recreate the storage pool: the volume configuration holds the keys to reassembling your data.
- Don't use the built-in "volume repair" (Synology, QNAP) on a degraded volume: it can write to the array and reduce recovery chances.
- Don't update DSM / QTS / the firmware hoping to "fix" it: an update can change the volume structure.
- On ransomware, disconnect the NAS from the network, don't delete the encrypted files (the originals are sometimes recoverable) and don't pay the ransom before assessing what is still recoverable.
- Don't replace a failed disk to let the NAS "repair" itself: the resync writes to the remaining disks.
- Note the position of each disk before removing it and don't mix up the bay order.
What the laboratory actually does
Imaging of the disks needed
Each disk needed for the reassembly is cloned read-only — one in a mirror, both in RAID 0, three on a 4-disk RAID 5. A mechanically failed disk is first repaired in the ISO 5 clean room. All recovery work is then done on these copies, to limit handling of your original disks.
Reassembly outside the box
We rebuild the RAID (mdadm), volume (LVM) and file-system layers on our station, outside the original NAS — essential when the box itself is dead or the volume no longer mounts.
Synology SHR & QNAP
Support for Synology Hybrid RAID (SHR/SHR-2) and its nested mdadm structure, as well as QNAP volumes (thick, thin, static) and their proprietary metadata.
Btrfs, ext4 & ZFS
Repair and extraction on NAS file systems: ext4, Btrfs (with its snapshots) and ZFS. We also recover data from snapshots and deleted volumes where possible.
Ransomware & deletion
After a ransomware attack we recover original files still present, unencrypted snapshots and previous versions. We do not "break" strong encryption: we work on what remains recoverable, transparently.
Verification before payment
We verify and open your files in the laboratory before any invoice. You only pay once the recovery is confirmed — No Cure, No Pay.
The engineer behind every recovery
At Belgium Data Recovery, no middlemen, no call centre: your device is opened and handled personally by Takhir Saidov, the engineer who runs the lab. You deal directly with him, from diagnosis to return — no juniors, no script.
- Certified MCP & MCSE engineer
- In IT since 1998 — over 25 years' experience
- Dedicated to data recovery since 2012
- Court-appointed technical expert · ACE Lab conferences
4 steps, zero nasty surprises
Free diagnosis
You drop off or send your media. Full analysis within 24h, no commitment.
Clear quote
You get the diagnosis result and a fixed price. Then you decide — never before.
Recovery
Lab work, clean room if needed, on a copy of your media — never the original alone.
Verification
You check your recovered files yourself at the laboratory before paying. You only pay if your data is really there.
Transparent pricing, no surprises
Full analysis included. We assess the condition of the device and recovery chances before any intervention.
7 to 14 business days. Donor drive and parts included. Returned on your own medium, or on a new drive as an option.
No rush surcharge. Critical cases handled as a priority.
You only pay upon success — No Cure, No Pay
They recovered their data
"Very good service. Data recovery also possible for complex (RAID) systems. Price/quality very competitive."
"I recommend it 100%!! The guy saved very important files on a formatted sd card in one day! he listened carefully to our problem and solved the problem immediately. Thanks a lot!"
Cases we have solved
Data recovery for Synology DS223 after a DSM reinstall in Brussels
A computer repair shop in Brussels took in a customer's NAS: a Synology DS223 with two 4 TB WD Red drives in a mirror. The unit…
View case →Data recovery for BeeStation BST150 after a drop in Brussels
Every photo a Brussels family had lived in one place: a 4 TB Synology BeeStation BST150 standing upright on a shelf. There was no…
View case →Frequently asked questions
My Synology can no longer mount the volume — is it recoverable?
Yes, most of the time. A Synology volume that no longer mounts is usually caused by a degraded RAID, a damaged Btrfs/ext4 file system or a failing disk — rarely by actual data loss. We clone the disks, reassemble the SHR RAID and the volume outside the NAS, then repair the file system on a copy. Power off the NAS and send us the disks for a free diagnosis.
My NAS was hit by ransomware — can you recover my files?
Sometimes, depending on the situation. We don't decrypt strong encryption, but many NAS keep snapshots, previous versions or original files not yet overwritten, from which recovery is possible. Disconnect the NAS from the network, delete nothing, and bring it in for a free diagnosis that will establish what is recoverable.
Do I send the whole NAS or just the disks?
Most often the disks are enough — remember to note their order and position. For some proprietary configurations (Drobo, enclosures with their own format), include the box too: it may hold information needed for reassembly. If your shared folders or volume are encrypted, have the password or recovery key ready — without it, no lab can read the data.
How much does NAS data recovery cost?
From €490 excl. VAT per disk to be cloned — a 2-bay mirrored NAS (RAID 1, SHR-1) usually counts as a single disk. Each disk needed to reassemble the volume is cloned and analysed individually. The diagnosis is free and the quote firm: you only pay if the recovery succeeds (No Cure, No Pay), with no rush surcharge. VAT extra.
How long does NAS recovery take?
The diagnosis is completed within 24 to 48 h of receiving the disks. Recovery then takes 7 to 14 business days. Need your data sooner? Just say so: the case is handled as a priority, with no price increase whatsoever.
Both drives of my mirror have failed: do I pay for one drive or two?
One, if the first drive we treat holds the most recent, complete copy; two, if the second also has to be treated. A mirror stops synchronising the moment one drive fails: the drive that died last holds the up-to-date data, the other an older copy — and nothing on the outside tells them apart. So we proceed drive by drive, with your approval and the price known before each step.
Free, immediate diagnosis
No call center, no scripts — the engineer answers your call and works on your drive personally, since 2012. We respond 24/7, emergencies accepted at any time.
02 888 29 90