You can't change it. The VNX operating system makes that decision for you.  All LUNs on a NL-SAS RG will have the same SP owner. If you create a separate NL-SAS RG then the other SP will own those LUNs.
Hello,  today I want to increase the size of a RG LUN (no META) currently size of 500GB (owner SPB) to 750GB and try to take LUN Migration like several times bevor but can't choose the new created LUN. After check both LUN properties I found out that the LUN owner (destination LUN owned by SPA) are different. I try to created another LUN which is owned by SPB but SPB is shown greyed. CX4-120 Flare 4.30.000.5.524. LUN Quantity about 40.  Somebody knows this Issue?  many thanks in advance
LUN Migration can't find LUN - LUN creation only on SPA possible