看文档starrock备份到云对象存储或hdfs上，有没有办法备份到本地目录或NFS设备上？
这两种目前不支持，您可以到git上提一个需求issue,详细描述下您的需求。
好的，看文档支持S3协议的对象存储，我安装一个支持S3协议的MINIO对象存储，能否给个使用S3协议备份的例子。
现在创建REPOSITORY报错，文档里这方面写的含糊：
MySQL [(none)]> CREATE REPOSITORY backup_repo
-> WITH BROKER broker1
-> ON LOCATION “oss://backup”
-> PROPERTIES
-> (
-> “fs.oss.accessKeyId” = “backup”,
-> “fs.oss.accessKeySecret” = "xxx“,
-> “fs.oss.endpoint” = “http://10.28.38.47:9001”
-> );
ERROR 1064 (HY000): Failed to create repository: failed to list remote path: oss://backup/__palo_repository_backup_repo/__repo_info. msg: unknown error when get file status, cause by: The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.
[ErrorCode]: InvalidRequest
[RequestId]:
[HostId]: 34fc7eac-3827-4c63-b461-3c21b9f772ad
[ResponseError]:
InvalidRequestThe authorization mechanism you have provided is not supporte