You are the administrator of a vSphere environment, where some performance issues have recently been reported. You want to closely examine various settings related to storage. You want to do most of this work at the command line with the intent that you might be able to build scripts for future use. You want to examine details on the iSCSI adapters in an ESXi host, and you want to rescan the iSCSI storage.
VDCA510 Objective: 6.4 Troubleshoot Storage Performance and Connectivity
VDCA550 Objective: 1.3 Troubleshoot Complex Storage Solutions
esxcli iscsi adapter list
esxcli iscsi adapter get --adapter vmhba33
esxcli storage core adapter rescan --adapter vmhba33