Hi,
the command for triggering a rescan for new or dead volumes, devices or pathes use
~# esxcli storage core adapter rescan --all
To scan on a specifc adapter determine the HBA name and start a rescan there
~# esxcli storage core adapter list vmhba2 lpfc link-up fc.60000090be45e120:10000090be45e120 vmhba3 lpfc link-up fc.60000090be45e121:10000090be45e121 ~# esxcli storage core adapter rescan --adapter vmhba2
To scan for new or changed filesystems use
~# esxcli storage filesystem rescan
Michael