QNAP NAS Error Code 47: How to Fix It
Medium 30-60 minutes Medium Severity
Verified June 2026
- Error Code
- 47
- Brand
- QNAP
- Product Type
- nas
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-60 minutes
Ad
Tools You'll Need
- Web browser (to access QTS management interface)
- QNAP Qfinder Pro utility (optional, to locate NAS IP address)
- Phillips screwdriver (if physically installing a new hard drive)
- Anti-static wrist strap (recommended when handling hard drives)
- Replacement or expansion hard drive (if adding storage)
How to Fix Error Code 47
-
Log In to the QNAP Management Interface
Do not attempt to access the NAS web interface from an untrusted network. Always use a secure, private connection. -
Check Available Storage in Storage Manager
-
Open Surveillance Station and Review Recording Settings
-
Enable Automatic Space Reclamation (Overwrite Oldest Recordings)
Enabling automatic overwrite will permanently delete your oldest surveillance recordings. Make sure you have backed up any footage you need to retain before enabling this option. -
Manually Delete Old or Unneeded Recordings
Deleted recordings cannot be recovered. Confirm you do not need the footage for legal, insurance, or security review purposes before deleting. -
Reduce Recording Quality or Frame Rate to Use Less Space
Reducing quality may affect the usefulness of footage for identifying people or incidents. Balance storage savings with your actual security needs. -
Expand Surveillance Storage with an Additional Hard Drive
Always power down the NAS completely before physically installing a hard drive unless your specific QNAP model explicitly supports hot-swapping. Check your model's documentation to confirm hot-swap capability. Use drives from QNAP's official compatibility list to avoid errors. -
Verify Recordings Have Resumed After Clearing Space
Parts You May Need
NAS hard drive (surveillance-grade)
Check Price on Amazon
NAS drive tray or caddy
Check Price on Amazon
NAS hard drive (surveillance-grade)
Check Price on Amazon
NAS drive tray or caddy
Check Price on Amazon
NAS hard drive (surveillance-grade)
Check Price on Amazon
NAS drive tray or caddy
Check Price on Amazon
NAS hard drive (surveillance-grade)
Check Price on Amazon
NAS drive tray or caddy
Check Price on Amazon
Ad
When to Call a Professional
Contact QNAP support or a qualified NAS technician if: the error persists after clearing significant space and all recording settings have been correctly configured; the storage volume shows errors or degradation in Storage Manager indicating possible hardware failure; you need to expand storage but are uncomfortable with physical drive installation or RAID reconfiguration; or if the NAS is part of a business critical-security system and you cannot afford downtime or data loss during troubleshooting.Frequently Asked Questions
What does QNAP NAS Error Code 47 mean?
Error Code 47 on a QNAP NAS means the disk or storage volume assigned to Surveillance Station is completely full. When this happens, new camera recordings cannot be saved, and your cameras effectively stop recording until space is freed up.
Will QNAP Error 47 delete my existing surveillance footage?
Error Code 47 itself does not delete any footage — it simply stops new recordings from being saved. However, to resolve the error you will need to either manually delete old recordings or enable the automatic overwrite setting, which does remove the oldest files to make room for new ones.
How do I stop my QNAP surveillance disk from filling up again?
Enable the 'Overwrite oldest recordings when storage is full' option in Surveillance Station's storage settings. You should also set a retention policy (e.g., keep only the last 7 or 30 days of footage), reduce camera resolution or frame rate, switch to motion-triggered recording instead of continuous recording, and consider adding more hard drive capacity to your NAS.
Which hard drives are compatible with QNAP NAS for surveillance recording?
QNAP publishes an official hardware compatibility list on their website at qnap.com. For surveillance use, NAS-grade or surveillance-optimized hard drives are recommended because they are designed for the continuous read/write workloads that security camera recording requires. Always check the compatibility list for your specific NAS model before purchasing a drive.
Can I add cloud storage to QNAP Surveillance Station to avoid a full disk?
QNAP Surveillance Station does not natively stream recordings directly to cloud storage as a primary recording destination, but you can use QNAP's hybrid backup solutions or third-party tools to archive older footage to cloud services like Amazon S3, Google Drive, or QNAP's myQNAPcloud. This helps offload older recordings from the local disk, keeping it from filling up.