Is there a setting on VMAX20K FA to give a certain SG/device more weight than all other hosts on it?
I know with host io limits we can limit how much IO a certain host can push.
no, i dont think there is any thing in vmax, the host io limit only limit the number of io a host/sg can serve.. Otherwise, all parameters are configured for max.
Check out this topic its a good place to start: https://community.emc.com/message/789943