Hello,   You do not have to reset the arrays to change IPs.  You just have to do it slowly, I prefer the serial port since it will always be available as you change IPs.  At some point you are going to have a PC that can access both networks.  The PS6000, aka Type 7 Controller does not have a dedicated Mgmt port.  If you want to use out-of-band management you will lose the last GbE port for that feature.   So assuming you DON'T want to lose a GbE port, you need to change one port on each member to the new subnet..  This updates the internal table of member IP addresses so they will always stay in contact with each other.  When you get down to the last port,  change the Group IP address to the new subnet.  Then change the default gateway to the new subnet on all members.  Then finally change the last network ports on all members to the new subnet.  I would then suggest rebooting both members, one a time.   If you have a support contract in place, Dell support can help you with this process.  Regards, 
Hello my equal logic group IP is 192.168.0.1 and my two other storage members are 192.168.0.2 and 192.168.0.3  not management ports  " management ports not configured and cant be now due to both management and iscsi are on the same subnet"  i would like to change the group ip to 172.16.10.2  and my two storage members to 172.16.10.3 172.16.10.4   " i want to get rid of the 192.x subnet in the iscsi storages except management ports."   if i change the group ip to 172.16.10.2  and enable 1 Ethernet ports on the two members with IP's 172.16.10.3  172.16.10.4  , will that group still be intact and the members can see each other in the group with no issue?  or do i have to reset the storage devices and start all over?  *this is not a production system and there is no data on it yet.* thank you  
Changing Equallogic PS6000 Serires IP address