Hi Sree,  So it means you have MV_A and MV_B existing but no MV_cluster. Now you want to share some luns across A,B & C. So best is create a MV_cluster , SG_cluster , IG_cluster and add IG_A,B &C in cascaded manner with -consistent_lun option and in SG_cluster add the luns which you want to share. Meanwhile disassociate the SG temp from Fastvp. Also now for movement of luns from SG_A to SG_cluster you have two different ways -1) take downtime and move the luns to new SG 2) Divide yours IGs such you have two IG's from one host and create the cluster IG with one and then move the luns so everytime lun has 1 path alive from the host. We recently did that kind of movement. And once luns are in new cluster SG then add back the other paths to the IG. And then finally associate the SG to the FASTvp. Because device cannot belong to more than one storage group in use by FAST so you have to add lun to only one group. And then add your SG_A and SG_B to fast also and no duplicate luns in any SG. If you divide the IG make sure host has multipathing software in it and also try to keep lun numbers same which is not 100% compulsory i think but as best practise we keep same lun. Multipath should take care of lun numbers but then also better to do safely.  Regards, Mrinal Dani
Hi,  Good Day  There is a scenario where few LUNs are allocated to Storage Group with Fast VP applied and later we want few or single LUN to be shared to more host/s. Therefore from the we want to move LUN/s from first SG to other SG.  I belive host will be missing the LUN if we move. Kindly let me know on how and in what scenariosto move the LUN/s ?  Please let me know if you need more details.  Many Thanks  Regards, Sreekanth Adari
How to move a LUN from a SG with Fast VP to other SG ?