Please let me know if my interpretation is correct.
I am talking about the Add Volume Storage documentation.
In the following sentence, “The way to do this is to run at least two Machines per app.”, does machine refer to a volume?
The first rule of Fly Volumes is: Always run at least two volumes per application. The way to do this is to run at least two Machines per app. Also note that volumes don’t sync up by themselves; your app needs to take care of that. Refer to Fly Volumes for details about how volumes work.
When I try the fly status command, there are two machines present.
❯ fly status
App
Name = hogehoge-backend
Owner = personal
Hostname = hogehoge-backend.fly.dev
Image = hogehoge-backend:deployment-hogehogehoge
Platform = machines
Machines
PROCESS ID VERSION REGION STATE CHECKS LAST UPDATED
app 1111111111 3 nrt stopped 2023-06-04T14:24:14Z
app 1111111111 3 nrt stopped 2023-06-04T14:23:1
However, when I check the dashboard, there are not two.
Yes, your app on Fly.io consists of one or more Machines that are running your code. The first time you deploy your app, we create two Machines by default for redundancy.