Managing power supply issues for Zyxel NAS devices, particularly when integrated with an Uninterruptible Power Supply (UPS), is essential for ensuring data integrity and system reliability. This article provides solutions and configurations based on community discussions and expert recommendations.
End-of-Life Product Notice: We regret to inform you that the product "Zyxel NAS Devices" has reached the end of its useful life. As a result, technical support for this device may be limited. Please be aware that any manipulation or use of a device that is already end-of-life is entirely at your own risk. You can find a list of obsolete devices, including their retirement and end-of-support dates, at the link below. This page also provides the latest updated version for your device: End of Life
Supported UPS Models
We only support the APC Back-UPS ES 500. While it is possible that other UPS models will work, we cannot guarantee their compatibility or provide support for them.
Configuration Path
You can find the UPS settings under the following path:
Control Panel > Maintenance > Power > Power Management > Minimum UPS Capacity
Explanation
When using a UPS with a USB connection to the NAS, the NAS will automatically shut down if the UPS’s battery charge drops to the specified percentage. This ensures that the NAS shuts down properly, avoiding data loss caused by a power failure when the UPS stops supplying power.
Recommendation
Optimal Setting: A setting of around 50% is recommended. This provides a balance between preserving UPS battery life and ensuring the NAS has enough power to shut down properly.
High Setting: A setting close to 100% is not recommended as it would cause the NAS to shut down frequently whenever the UPS charges.
Low Setting: A setting close to 0% is also not recommended because the UPS might not have enough power left to allow the NAS to shut down properly.
Common Issues and Solutions
- Wake on LAN (WOL) Problems After UPS Shutdown
Some users have experienced issues with WOL functionality after the NAS shuts down due to a power outage. To address this, check the shutdown command used by the UPS daemon. Using the 'halt' command instead of "power off" might resolve the issue, as "halt" does not fully power off the device, which can affect WOL (Zyxel Community).
- Automatic Shutdown Configuration
For automatic shutdown when the UPS detects a power outage, users have configured their NAS devices successfully with compatible UPS models. Ensure proper setup through the Control Panel under Maintenance > Power Management (Zyxel Community) (Zyxel Community).
- UPS Logging and Notifications
To ensure critical UPS event notifications are received, modify the severity level of logs from "notice" to "alert". Edit scripts under /etc/apcupsd/
and use a cron job to maintain these changes after reboots (Zyxel Community).
- Power Supply and UPS Connections
Issues with NAS devices not powering on when connected to certain UPS models may be due to power supply limitations or faulty hard drives drawing too much current. Testing with different power supplies or replacing faulty drives can help diagnose and resolve these issues (Zyxel Community) (Zyxel Community).
- Firmware and Software Adjustments
Keep the NAS firmware up to date and adjust settings for improved power management. Customizing shutdown scripts in third-party software like apcupsd can enhance the NAS's response to power events (Zyxel Community) (Zyxel Community).
Conclusion
Proper configuration and regular maintenance of the Zyxel NAS and its power supply settings are vital for optimal performance and data protection. Following the recommendations and solutions provided will help ensure that your NAS operates reliably, even during power interruptions. For further assistance and detailed guidance, refer to the Zyxel Community Forum and the user guide.
For more information and community discussions, visit the Zyxel Community Forum.
Just a heads-up: Zyxel NAS devices have reached the end of their support period. We understand this might be inconvenient, so to help you out, please visit our forum or explore the NAS section in our knowledge base for all the details. You can also find a list of outdated devices and their support timelines at the link below.
Thanks so much for your understanding and patience!