Applicable Products
- QuTS hero h5.3.0 or later
- High Availability Manager
Details
Starting from version h5.3.0, QuTS hero supports high availability (HA) through the application High Availability Manager. HA relies on a new system architecture and core components that were introduced in version h5.3.0.
The ability to downgrade to h5.2.x or earlier and the associated risks depend on whether your NAS is in an HA environment.
HA Environments
When your NAS is in an HA cluster, downgrading to h5.2.x or earlier is strictly prohibited. To ensure cluster stability and data safety, the system will block any attempts to downgrade to h5.2.x or earlier.
Non-HA Environments
When HA is disabled, while you can technically downgrade to h5.2.x or earlier, we highly discourage doing so, because you risk the following situations:
- Incompatible storage structure
Storage structures created or modified in h5.3.0 or later may be incompatible in h5.2.x or earlier, potentially leading to data inaccessibility. - Lost or unsupported settings
System configurations (such as network, applications, or user permissions) created or modified in h5.3.0 or later may be lost or unsupported after downgrading to h5.2.x or earlier.
Important
- If you downgrade from h5.3.0 or later and then upgrade back to h5.3.0 or later, any settings configured during the downgraded period will not be retained.
- If you wish to preserve any settings configured during the downgraded period, you must first reinitialize the system before you configure the settings.
For example, after downgrading from h5.3.0 to h5.2.4, first reinitialize the system, then (re)configure desired settings, and then upgrade to h5.3.0 again.
- If you have already downgraded your firmware and encountered any missing settings or abnormal behavior, please contact QNAP technical support for assistance.
Further Reading
Why downgrading QNAP NAS firmware is not recommended
适用产品
- QuTS hero h5.3.0 or later
- High Availability Manager
详细信息
从版本 h5.3.0 开始，QuTS hero 通过应用程序 High Availability Manager 支持 高可用性 (HA)。HA 依赖于在版本 h5.3.0 中引入的新系统架构和核心组件。
降级到 h5.2.x 或更早版本的能力及相关风险取决于您的 NAS 是否处于 HA 环境中。
HA 环境
当您的 NAS 处于 HA 群集 中时，严格禁止降级到 h5.2.x 或更早版本。为了确保 群集 的稳定性和数据安全，系统将阻止任何降级到 h5.2.x 或更早版本的尝试。
非 HA 环境
当 HA 被禁用时，虽然您可以技术上降级到 h5.2.x 或更早版本，但我们强烈不建议这样做，因为您可能面临以下情况：
- 不兼容的 存储 结构
存储 结构在 h5.3.0 或更高版本中创建或修改可能在 h5.2.x 或更早版本中不兼容，可能导致数据无法访问。 - 丢失或不支持的设置
在 h5.3.0 或更高版本中创建或修改的系统配置（如网络、应用程序或用户权限）在降级到 h5.2.x 或更早版本后可能会丢失或不被支持。
重要提示
- 如果您从 h5.3.0 或更高版本降级，然后再升级回 h5.3.0 或更高版本，降级期间配置的任何设置将不会保留。
- 如果您希望保留降级期间配置的任何设置，您必须首先重新初始化系统 然后再配置设置。
例如，从 h5.3.0 降级到 h5.2.4 后，首先重新初始化系统，然后（重新）配置所需设置，然后再升级到 h5.3.0。
- 如果您已经降级了您的 固件 并遇到任何设置丢失或异常行为，请联系 QNAP 技术支持 寻求帮助。
进一步阅读
为什么不建议降级 QNAP NAS 固件
