UniFi Network Video Recorders have the unique ability to create redundant storage arrays across several disks, protecting your data from disk failures. UniFi OS provides a simple interface that allows you to choose your preferred balance of data protection and storage capacity.
A single disk will not provide any protection against data loss, but inserting additional disks will allow you to choose between Basic Protection and Higher Protection.
Basic Protection (RAID5)
|Higher Protection (RAID10)|
|Requirements||At least two disks installed.||4 or 6 disks installed.|
|Protection Offered||If more than one disk fails before rebuilding, data will be permanently lost.||If more than one disk fails before rebuilding, data has a ⅓ chance of surviving.|
|Recommendation||The best option to maximize your storage space.||The best option to protect against data loss.|
Key Points for Configuring Data Protection
Protection is easy to set up, and can be changed at any time in the UniFi OS Storage interface. Here are a few key points to keep in mind when setting up a configuration:
- The configuration process can take several hours to complete.
- Performance may be impacted while configuring, adding or replacing disks.
- We recommend you set up your ideal system at the start, rather than adjusting or adding more disks as needed.
- All disks in an array must have the same storage size, otherwise retention will be limited to the smallest size.
For instructions on how to replace disks, see Storage Replacement.
Hot Spare reserves one disk for emergency use. When a disk fails, the UNVR will automatically transfer data onto the reserved disk, and retire the failed disk. Remember that, as noted above, data transfer may affect performance speeds.