====== Just short notes =======

**synopsis**: a disk appears and the system automaticly starts RAID (if there is one)

that could cause a lot of headache

**solution**: remove trigger "on add"
''/lib/udev/rules.d/55-dm.rules''
<code bash>
  -ACTION!="add|change", GOTO="dm_end"
  +ACTION!="change", GOTO="dm_end"
</code>

But keep on change