[Unit]
Description=MARS block layer HA (kernel module)
Documentation=https://github.com/schoebel/mars/docu/mars-manual.pdf
RequiresMountsFor=/mars/uuid
StopWhenUnneeded=false
IgnoreOnIsolate=true

ConditionPathIsSymbolicLink=/mars/uuid

[Service]
Type=oneshot
RemainAfterExit=yes
#ExecStartPre=if ! mountpoint /mars; then mount /dev/*/mars /mars; fi
ExecStart=/sbin/modprobe mars
ExecStop=/sbin/rmmod mars

[Install]
WantedBy=mars.mount