We have three server running nw65sp5 which we are going to upgrade to sp7,
all those servers are at edir In the same tree we also have a
nw6sp6 machine which holds a r/w replica and is at edir 8.7.3.

My questions are:
* When I upgrade to sp7 it will also update edir to iirc, will that
work fine with the nw6sp6 edir 8.7.3 box ?
* should I remove the r/w replica from the nw6 box before applying sp7 or
will it not make a difference ?

(the nw6 box is going to be removed as soon as I have move ndpsm, broker,
dns and some other stuff from it)