NAS Data Recovery
Recovery for Synology, QNAP and other NAS systems — single-disk, multi-disk and RAID-based — including failed rebuilds and units that no longer boot.
NAS systems combine one or more drives with a storage layer that varies by manufacturer — often standard Linux file systems, RAID or LVM volume management, and vendor-specific metadata layered on top, rather than a single proprietary format. DiskAnalyst works directly with these layers to recover data from failed NAS drives and arrays.
Common Causes of Failure
Drive Failure Within the NAS
One or more drives inside the NAS enclosure fail, which may or may not take the storage pool offline depending on the configuration.
Failed Storage Pool Rebuild
A rebuild that fails or is interrupted can leave the storage pool in an inconsistent state.
NAS Not Booting
The NAS operating system fails to start even though the drives may be intact, often due to boot-partition or system-volume corruption.
File-System / Volume Corruption
The underlying file system — commonly ext4, Btrfs, or a vendor-specific layout — can become corrupted independently of the drives' physical condition.
Accidental Deletion
Files or entire shares deleted from the NAS, sometimes compounded by snapshot or recycle-bin settings being disabled.
What We Handle
- Synology, QNAP and other NAS brands
- Single-drive and multi-drive NAS units
- NAS devices that fail to mount or boot
- RAID-based storage pools within a NAS enclosure
- Accidentally deleted NAS shares
- Business and home NAS storage
Common Signs & Failure Scenarios
Our Recovery Approach
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1
Drive & Configuration Assessment
We assess each drive individually along with the NAS's RAID or volume configuration before attempting reconstruction.
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2
Member Imaging
Where possible, each drive is imaged rather than worked on directly, preserving the original media.
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3
Volume & File-System Reconstruction
The underlying storage layer — RAID/LVM and file system — is reconstructed from the imaged drives to expose the original folder structure.
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4
File & Share Extraction
Recovered files and shares are extracted and verified before being returned on your destination drive.
Important: What Not To Do
- Do not initialize replacement storage before diagnosis.
- Avoid forced rebuilds through the NAS admin panel until the drives have been assessed.
- Preserve the original member drive order and enclosure positions.
- Do not write to the original disks while diagnosis is in progress — use read-only access where the NAS software allows it.
Devices & Configurations We Cover
Frequently Asked Questions
Yes. We work with Synology, QNAP and other NAS platforms, recovering from the underlying drives and storage layer regardless of brand.
Not before the array has been assessed. A rebuild started without knowing the condition of the remaining drives can put existing data at further risk.
Often, yes. A NAS that fails to boot can still have intact drives — the fault is frequently in the system volume or configuration rather than the stored data itself.
In many cases, particularly if the NAS is stopped from further use soon after deletion. Whether recovery is possible depends on the file system and how much the storage has been used since.
Ready to Start Your Recovery Case?
Tell us what happened to your device and we'll advise on the right next step.
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