Hi! Can try this:
Stop only the MDS (no need to stop the CMAs / Domains):
[Expert@HostName]# mdsstop -m
If not configured already, change the IP address of the MDS on the interface web interface or CLI:
Change the IP address of the MDS to the new desired IP address in $MDSDIR/conf/LeadingIP file (using Vi editor).
Backup the current $MDSDIR/conf/mdsdb/mdss.C file:
[Expert@HostName]# cp $MDSDIR/conf/mdsdb/mdss.C $MDSDIR/conf/mdsdb/mdss.C_ORIGINAL
Edit the current $MDSDIR/conf/mdsdb/mdss.C file:
[Expert@HostName]# vi $MDSDIR/conf/mdsdb/mdss.C
Find the MDS object that has the source MDS IP address and change its IP address to the new IP address (attribute called :ipaddr).
Do not change the HostName - otherwise, the MDS daemons (FWM, CPD, CPCA) will not be able to start.
Do not forget to change your license.
[Expert@HostName]# mdsstart -m
Cheerz
Lesley