未验证 提交 ad92e2d3 编写于 作者: C Changjian Gao 提交者: GitHub

Docs: add min version requirement notice to metadata dump and load doc (#569)

上级 c459a1c7
# JuiceFS Metadata Backup & Recovery
> **Note**: This feature requires JuiceFS >= 0.15.0.
JuiceFS supports [multiple metadata engines](databases_for_metadata.md). Each engine has its own internal format, but with the `dump` command it can export all the metadata to an identical [JSON](https://www.json.org/json-en.html) file ([example](../../pkg/meta/metadata.sample)). Meanwhile, there is also a `load` command to import metadata from the JSON file. Metadata backup, recovery and migration are achieved with these two [commands](command_reference.md#juicefs-dump).
## Metadata Backup
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# JuiceFS 元数据备份和恢复
> **注意**:此特性需要使用 0.15.0 及以上版本的 JuiceFS。
JuiceFS 支持[多种元数据引擎](databases_for_metadata.md)。各个引擎内部管理格式各有不同,但都可以通过 JuiceFS 提供的 `dump` 命令将所有元数据写入到一个统一格式的 [JSON](https://www.json.org/json-en.html) 文件([示例](../../pkg/meta/metadata.sample))中;同时,JuiceFS 也提供了从此文件中 `load` 元数据的命令。通过这两个命令,可以实现元数据备份/恢复和跨引擎迁移的功能。命令的详细信息请参考[这里](command_reference.md#juicefs-dump)
## 元数据备份
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