MetaLun EMC SAN and ESX 4 (vSphere)
Expand the CLARiiON LUN on the ClaRiiON storage system to the desired LUN size, issue a rescan at the ESX level. Sometimes you have to rescan again before your metalun will be shown.(I have to find out why) Your old disk will disappear from storage adapter view and the new metalun wil be shown. [...]