Before you set up your ESX/ESXi host to boot from a SAN LUN, configure SAN components and a storage system.

Because configuring the SAN components is vendor specific, refer to the product documentation for each item.

1

Connect network cable, referring to any cabling guide that applies to your setup.

Check the switch wiring, if there is any.

2

Configure the storage array.

a

From the SAN storage array, make the ESX/ESXi host visible to the SAN. This process is often referred to as creating an object.

b

From the SAN storage array, set up the host to have the WWPNs of the host’s adapters as port names or node names.

c

Create LUNs.

d

Assign LUNs.

e

Record the IP addresses of the switches and storage arrays.

f

Record the WWPN for each SP.

Caution

If you use scripted installation to install ESX/ESXi in boot from SAN mode, you need to take special steps to avoid unintended data loss.