Path vs Mount disk resources

[Tobias Pfeiffer]

Hi,

I have a Mesos cluster where each node has both SSD and HDD disks, so I
want to offer them separately as described in
http://mesos.apache.org/documentation/latest/multiple-disk/

I am not sure yet where the OS will be installed, but I guess on the disk
that holds the OS I cannot use a Mount type resource, but would have to use
a Path type resource? The documentation states "non performance-critical
applications" and "should only be done in a testing or staging environment"
about Path type resources. Is there any particular reason for that?

I imagine if I have something like, say,

  /          HDD, 1000 GB
  /mnt/data  SSD, 200 GB

would it make sense to configure the disk resources like

    {
      "resources" : [
        {
          "name" : "disk",
          "type" : "SCALAR",
          "scalar" : { "value" : 800000 },
          "disk" : {
            "source" : {
              "type" : "PATH",
              "path" : { "root" : "/var/lib/mesos-data" }
            }
          }
        },
        {
          "name" : "disk",
          "type" : "SCALAR",
          "scalar" : { "value" : 200000 },
          "disk" : {
            "source" : {
              "type" : "MOUNT",
              "mount" : { "root" : "/mnt/data" }
            }
          }
        }
      ]
    }

or is that something that's not suitable for production?

Thanks,
Tobias