Yes — crashed Synology volumes are usually recoverable, including SHR and SHR-2 arrays with Btrfs or ext4 where one or more drives have degraded. We reconstruct the array and filesystem from the member disks — without relying on the failed NAS. The critical rule: do NOT reinitialise, factory-reset, repair or rebuild the volume in DSM — that's what turns a recoverable Synology into a lost one.
Synology "volume crashed"? Your data is probably still there.
Synology NAS units layer DSM over SHR (Synology Hybrid RAID) and an advanced filesystem — usually Btrfs, sometimes ext4. When DSM reports a "crashed volume" or a degraded array, the data underneath is typically intact and recoverable, but the DSM interface will offer to "repair" or "reinitialise" — actions that can overwrite what we need.
CBL reconstructs SHR/SHR-2 and the Btrfs/ext4 filesystem directly from the member disks in our lab, so your shared folders and backups come back safely.
Do not reinitialise, factory-reset, rebuild or run "repair" in DSM. If a drive failed, power the NAS down and label the bays. Then book a free diagnosis.
What NOT to do with a crashed Synology
Common Synology failures
Our Synology recovery process
Free diagnosis
We assess each disk and the SHR/Btrfs array, identify the fault, and confirm recoverability. No cost.
Image every disk
We clone each drive individually — repairing any physically failed disk in the cleanroom — so the originals are never risked.
Reconstruct SHR + Btrfs
We rebuild the SHR/SHR-2 layout and the Btrfs/ext4 filesystem virtually from the images — no reliance on the failed NAS.
Extract & verify
We mount the reconstructed volume, extract your shared folders, and provide a list to verify.
Secure return
Verified data returned confidentially under NDA.
See also NAS data recovery and QNAP recovery.
What we can recover — Synology scenarios
| Scenario | Approach | Typical outcome |
|---|---|---|
| SHR/SHR-2, one/two disks degraded (not rebuilt) | SHR + Btrfs reconstruction | High |
| Crashed volume, Btrfs/ext4 corruption | Filesystem repair from image | High |
| DSM won't boot / system fault | Data recovery from data volume | High |
| Deleted shared folder | Structure recovery | Good |
| Reinitialised / rebuilt NAS | Assessed individually | Reduced |
How much does Synology recovery cost?
| Case type | Examples | Indicative range (SGD) |
|---|---|---|
| Logical Synology | Volume crash, Btrfs corruption, no physical damage | $1,000 – $2,000 |
| Synology + failed disk(s) | One or more disks need cleanroom repair | $1,600 – $3,200 |
| Large arrays | 4+ bays, encrypted volumes, priority | $2,800+ |
Exact fixed price before work begins. Full detail: data recovery cost guide →
Synology recovery case studies
Representative examples from typical laboratory cases. Anonymised.
SHR volume crashed — two disks degraded
A 4-bay Synology running SHR reported a crashed volume after two disks degraded. The owner nearly reinitialised it. We reconstructed the SHR/Btrfs array from the member disks.
✓ 98% recoveredDSM wouldn't boot after update
A DSM update left the NAS unbootable. The data volume was intact; we recovered the shared project drive from the disks.
✓ Full recoveryDeleted shared folder under NDA
A finance shared folder was deleted during a migration. We recovered the Btrfs structure and returned the records under NDA.
✓ Records recoveredFree diagnosis & a fixed written quote
Free Diagnosis
We assess your Synology and confirm recoverability — no cost.
Fixed Written Quote
A firm price before any work — you approve before we start.
NDA & Confidential
Business-grade confidentiality and NDAs.
Synology recovery FAQ
Can you recover a crashed Synology volume?+
Should I reinitialise or repair the Synology?+
Can you recover SHR and SHR-2?+
Do you need the Synology unit, or just the disks?+
One or two disks failed — is it recoverable?+
How much does Synology recovery cost?+
Do I pay if the Synology volume cannot be recovered?+
The bottom line
A crashed Synology is recoverable far more often than DSM makes it seem — but only if the first response is right. Power it down, don't reinitialise, label the bays, and call CBL. With SHR/Btrfs expertise, NDAs, we give your Synology its best chance.