Today I added a second Lun on my iSCSI box. The next step was to configure this Lun on one of my vSphere boxes. So I did a rescan on vmhba34 and formatted it to VMFS. The next step, which I think is an excellent new feature in vSphere, was a “Rescan for Datastores”:
I started the wizard on a Cluster and it will only ask you to set two options:
So I checked both the options and did a Rescan. After a couple of seconds my other host was configured and showed the new Lun.