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How to set up a NAS for video surveillance

A NAS can serve as a private network video recorder (NVR) for IP cameras, keeping footage on premises instead of relying entirely on a cloud subscription. With suitable surveillance software, it supports continuous or event-based recording, live viewing, and search from home or work.

The job is more than slotting drives into a box. Camera support, storage layout, retention, networking, remote access and privacy rules all need to work together. A NAS also remains useful as a backup server and media repository after the cameras are added.

Australian homes add a few practical constraints. Apartments in Sydney and Melbourne may have limited ceiling space and shared switchgear, while Brisbane summers call for plenty of ventilation. Power cuts and consumer NBN upload limits can also affect how reliably footage is viewed away from home.

Start with the cameras and the evidence you expect to retrieve, rather than with a drive capacity figure. That makes the hardware easier to specify, keeps privacy proportionate, and avoids paying for storage that will remain unused.

Plan capacity around cameras and retention

Decide whether the system will cover a front door, driveway, shop, or several indoor and outdoor cameras. Note each camera's resolution, codec and configured bitrate rather than estimating from resolution alone. H.265 usually reduces storage compared with H.264, but the NAS and cameras must support the chosen stream.

Capacity depends on the number of cameras, hours per day, and retention period. At a constant 4 Mb/s, one camera uses about 43 GB a day, 1.3 TB for 30 days, and 10.4 TB for eight cameras over 30 days. Add 15 to 20 per cent for filesystem overhead, changing bitrates and growth.

Before buying, record:

Choose compatible NAS hardware and software

Synology and QNAP dominate the Australian NAS market, with models commonly available from JB Hi-Fi, Harvey Norman and specialist resellers. Local distribution generally provides an Australian warranty and support, but compare the surveillance package, included camera licences and long-term drive compatibility before purchasing.

Check that each IP camera used for CCTV supports ONVIF or RTSP and that the NAS software recognises its brand, model and firmware. ONVIF Profile S/T compatibility is useful, yet a vendor-specific camera may still expose fewer settings. Confirm PoE requirements too: a NAS with built-in PoE ports can simplify a small installation, while larger systems often use a managed PoE switch.

Choose hardware with adequate network throughput, RAM for viewing and a reliable cooling design. Sydney coastal humidity and hot Australian afternoons deserve attention to airflow, while a small uninterruptible power supply can protect the NAS and allow a clean shutdown during outages. Expansion bays matter only if they can be populated with drives supported by the chosen platform.

Build the storage foundation

Install drives of equal capacity where possible and favour surveillance-rated models designed for continuous writing. Check the NAS vendor's supported drive list, create the intended storage pool or volume, and enable a sensible redundancy scheme. RAID 1 mirrors drives; RAID 5 or 6 tolerates drive failures, but neither replaces a backup.

Feature Synology QNAP
Management DSM and Surveillance Station QTS with Surveillance Station or QVR
Flexible layouts SHR, RAID 1/5/6 and expansion RAID 1/5/6, pools and expansion
Remote access DDNS, Secure Connect and VPN options myQNAPcloud, VPN and firewall options
Common strength Straightforward all-in-one deployment Broad network and virtualisation choices

Follow the NAS pool guidance before committing every bay to active data. Reserve capacity for a hot spare or later expansion, especially on a four-bay unit, because rebuilding a large pool can take many hours. A spare also ensures a failed drive can be replaced without immediate pressure on the remaining disks.

Treat RAID, snapshots and an SSD cache as availability tools, not backups. A NAS can still lose every copy if it is stolen, destroyed by water or compromised. Keep critical footage on an encrypted off-site target or another protected copy, and test that the second copy can actually be restored.

Configure cameras and recording behaviour

Give every camera a strong, unique password, update its firmware, and add it to the NAS through the supported camera utility. Use wired Ethernet for normal operation when possible, assign fixed DHCP leases, and name locations clearly so footage is easy to find later. Disable any cloud-only feature that is not required.

Choose continuous recording for areas where missed events matter, and motion or event recording elsewhere after testing detection sensitivity. Set correct time zones and enable timestamps. High-resolution streams, continuous audio and long retention can multiply storage use; disable microphones in sensitive areas unless there is a clear operational reason and legal basis.

Verify these settings on each camera:

Test the first camera before adding the rest. Calculate usable capacity after redundancy overhead, monitor it as cameras are enabled, and use a retention policy that automatically removes old clips. Many NAS platforms also provide health alerts, space reporting and event search, making a brief weekly check more useful than discovering a full volume during an incident.

Secure remote access and Australian privacy

Keep the NAS and cameras on the local network, use a managed switch with VLANs where practical, and allow only required traffic between the camera and recording VLANs. Do not expose the NAS administration page or camera ports directly to the internet. Create individual accounts with least-privilege access, enable two-factor authentication, and use a VPN or the vendor's secured relay for remote viewing.

NBN connections often provide far less upload bandwidth than download bandwidth, especially on FTTN, so several remote streams may slow down or time out. FTTP and fixed-line business plans can perform better. Before relying on a Samsung Galaxy phone for monitoring, check the Samsung Galaxy compatibility notes alongside the system requirements for the NAS and camera apps. A 4G or 5G mobile connection is a useful fallback when the fixed broadband is down.

The federal Privacy Act 1988 may apply when a business or organisation handles the footage. State and territory laws also regulate surveillance devices, with different rules on recording private areas, audio, signage and publishing images; NSW, Victoria, Queensland, South Australia and Western Australia each have relevant legislation. Confirm the rules for the property and purpose, tell people that cameras are present, restrict access, and retain footage only as long as justified. For a home system, neighbours, visitors and household members can still have reasonable privacy expectations.

Test the system and keep recordings available

Run an end-to-end test after installation: watch each live stream, record a short clip, search for it by date, and confirm that playback works from a second device. Simulate a camera reboot and, if safe, a brief power interruption. Confirm that recording resumes automatically, alarms reach the right recipients and the NAS still has free space.

Review drive health, temperature, SMART data, network errors and camera connection logs on a schedule. Test the backup restore process quarterly, apply NAS and camera firmware updates during a quiet period, and rotate any shared passwords if staff, family members or contractors change. External media should be stored securely and disconnected when not in use.

Begin with a two-camera pilot on the chosen NAS, verify live viewing over NBN and a 4G phone, then connect the full property once retention and alerts match expectations. This practical test gives you a working foundation before the cameras become part of daily security.