早期版本zerofs 是单写，可以多read only 节点，现在已经支持ha 模式，机制上是通过复制

参考玩法

• leader

[cache]
dir = "/var/lib/zerofs/cache"
disk_size_gb = 10.0

[storage]
url = "s3://my-bucket/fs"
encryption_password = "change-me"   # identical on both nodes

[servers.ninep]
addresses = ["0.0.0.0:5564"]        # clients connect here

[replication]
node_id = "node-a"
role = "leader"
replication_listen = "10.0.0.1:9000"   # this node receives ships + heartbeats
peers = ["10.0.0.2:9000"]              # node-b's replication_listen

• standby

[cache]
dir = "/var/lib/zerofs/cache"
disk_size_gb = 10.0

[storage]
url = "s3://my-bucket/fs"
encryption_password = "change-me"

[servers.ninep]
addresses = ["0.0.0.0:5564"]

[replication]
node_id = "node-b"
role = "standby"
replication_listen = "10.0.0.2:9000"
peers = ["10.0.0.1:9000"]

• client 连接

目前是zerofs 的mount,内部自己处理

zerofs mount 10.0.0.1:5564,10.0.0.2:5564 /mnt/zerofs

说明

详细内部技术细节，官方有介绍，可以学习下

参考资料

https://www.zerofs.net/docs/high-availability

https://www.zerofs.net/docs/client-libraries