When you use EMC CLARiiON or Invista arrays for storage, it is required that the hosts register with the arrays. ESXi performs automatic host registration by sending the host's name and IP address to the array. If you prefer to perform manual registration using storage management software, disable the ESXi auto-registration feature.
- In the vSphere Client, select the host in the inventory panel.
- Click the Configuration tab and click Advanced Settings under Software.
- Click Disk in the left panel and scroll down to Disk.EnableNaviReg on the right.
- Change the default value to 0.
This disables the automatic host registration enabled by default.