Please read again what I wrote before.
Of course we had MSM setup not to discover anything and entered the ip manually.
Again what we did:
We changed the PASSWORD for the user "raid" in DSS V7 WEBGUI in Setup/Hardware Raid,
which made the system unaccessable for MSM !
And this is not reversible !
We have two DSS V7. Lucky, that we did the password change only on one system,
the other system is still accessible via MSM by user "raid" password "raid" as the first system was before.
Regards