Go to vcenter server settings>advanced settings and look for config.vpxd.filter.hostRescanFilter and see if it is set to true. This disables automatic rescans when adding storage. When i have a lot fo luns to add I use this, add to one host, then perform a manual rescan. Maybe someone turned this on for the new environment.
If you right click the cluster and click "rescan for datastores" do they now appear on your other hosts?
Donald Schubot | VCAP5-DCA, VCP4/5 | Blog: http://vschu.com/