The following example uses the CHAP secret (CHAP password) host_secret3 for the ESX host. Be aware that the CHAP secret must be at least 12 characters long.
2.On the ESX host’s VI/vSphere client, open the Storage Adapters tab, then select the iSCSI Software Adapter, and select the Properties link. Then, on the General tab, click CHAP.
For ESX 3.5, select the CHAP Authentication tab, and then select the Use the following CHAP credentials radio button.
Figure 1 CHAP Authentication in ESX 3.5
For ESX/ESXi 4.x or ESX/ESXi 5.x, select the Use initiator name check box.
