What is microSD Card/HDD Overwrite?
The microSD Card/HDD Overwrite feature is designed to automatically delete the oldest video recordings when the storage medium (microSD card or HDD) reaches capacity. This ensures continuous recording by freeing up space for new footage, thereby maintaining a seamless loop of recent video data without manual intervention. Alternatively, some users may choose to disable this function to preserve certain footage they consider important.
microSD Card/HDD Overwrite Functionality Support
Reolink has continuously integrated and enhanced the Overwrite feature across its product lineup to meet the evolving needs of customers. Here’s a summary of the overwrite functionality support:
- Cameras with Automatic Overwrite: Models like the Argus 2, Argus Pro, Argus Eco (2MP), Argus PT (2MP), Argus 2E, Reolink Go, and Reolink Go PT automatically overwrite old files without requiring specific settings in the Reolink software.
- Cameras with Overwrite Option: Some devices support the Overwrite old files feature, allowing users to enable or disable it as preferred.
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Advanced Overwrite Settings: Most models, such as the NVR (new UI), Home Hub series, Reolink Video Doorbell, Go Ranger PT, Keen Ranger PT, Argus 4 Pro, Duo 3V PoE, and Duo 3 Wi-Fi, etc. provide additional options to set the duration for which footage is overwritten.
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Specified number of days: it determines how long the device keeps recordings before automatically deleting them. Once a video exceeds the selected number of days, it is treated as the oldest recording and will be overwritten with new footage, even if storage is not yet full.
For example, if the interval is set to 7 days, the device always keeps the latest 7 days of footage. Anything older than 7 days will be removed automatically. - Overwrite Oldest Files: refers to the recordings that were saved earliest in time — in other words, the videos with the earliest dates and timestamps on the microSD card or HDD.
- No Overwrite: If you want to disable the overwrite, just choose No Overwrite. However, please note that when it becomes full, no new videos will be recorded.
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Specified number of days: it determines how long the device keeps recordings before automatically deleting them. Once a video exceeds the selected number of days, it is treated as the oldest recording and will be overwritten with new footage, even if storage is not yet full.
- Cameras without an SD card slot: These cameras do not have an overwrite option when used as standalone devices because they are designed to work with an NVR, which independently supports the overwrite function.
Note: The Overwrite options may vary depending on your device model, refer to the actual software interface.
How to Enable/Disable microSD Card/HDD Overwrite
Before setting up, upgrade the Reolink App or Client to the latest version and then log in to your device on the Reolink App or Client.
For Reolink Cameras
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1. Via Reolink App:
Step 1. Tap the
icon > More Features.
Step 2. Tap Storage > Overwrite Recordings > set the Overwrite Interval. Configure it according to your needs.
Instead, some devices support enabling (turn the toggle blue) or disabling (turn the toggle gray).
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2. Via Reolink Client:
Click the
icon > Storage > Storage Settings > set the Overwrite Interval. Configure it according to your needs.
Instead, some devices support enabling (turn the toggle blue) or disabling (turn the toggle gray).
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3. Via Web Browser:
Access your camera via a web browser. Click the
Instead, some devices support enabling (turn the toggle blue) or disabling (turn the toggle gray).
For Reolink NVRs
NVRs with the New UI support setting the overwrite interval, while NVRs with the Old UI, such as H3MB02, H3MB06, H3MB16, H3MB17, etc., do not have an Overwrite interval option.
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1. Via Reolink App:
Step 1. Tap NVR > Storage > Overwrite Recording and choose the overwrite interval if applicable.
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2. Via Reolink Client:
Click the
icon > Storage > Storage Settings > Setup Overwrite Interval.
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3. Via Web Browser:
Access your camera via a web browser. Click the
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4. Via Reolink NVR (New UI):
Applies to: RLN8-410 (hardware version NVR_NNT3NA78P / N7MB01 / N3MB01 / N2MB02 / H3MB18), RLN16-410 (hardware version NVR_NNT4NA716P / N6MB01 / H3MB18), RLN4E, NVS4E, RLN36, NVS36, RLN12W, NVS12W, NVS4E, NVS8, NVS12W, NVS16, NVS36, RP-PN8, RP-PN16, RP-N64.
Step 1. Log into the NVR on the monitor and go to the Settings page.
Step 2. Navigate to Surveillance > Record Settings.
Step 3. Click the arrow-down icon under Overwrite and select the desired overwrite time. -
5. Via Reolink NVR (Old UI):
Applies to: RLN4-410, RLN8-410 (hardware version H3MB02/H3MB16), and RLN16-410 (hardware version H3MB02/H3MB06).
Step 1. Log into the PoE NVR on the monitor and go to Menu > Recording > Option page.
Step 2. Set Overwrite to Yes and click Apply to save the settings.
For Reolink Home Hubs
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1. Via Reolink App:
Step 1. Tap Home Hub > Storage > Overwrite Recording and choose the overwrite interval.
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2. Via Reolink Client:
Click the
By following these steps, you can efficiently manage the storage space on your Reolink devices, ensuring continuous and reliable surveillance operations. We encourage users to regularly check their storage settings to ensure the SD card overwrite strategy and HDD overwrite strategy meet their surveillance needs. If you encounter any issues during the process, consult the user manual or contact Reolink support for further assistance.
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