The target name is either an IQN name or an EUI name.

The IQN and EUI names use specific formats.

The IQN name uses the following format.

iqn.yyyy-mm.{reversed domain name}:id_string

The following IQN name contains example values.

The ESXi host generates an IQN name for software iSCSI and dependent hardware iSCSI adapters. You can change that default IQN name.

The EUI name is described in IETF rfc3720 as follows.

The IEEE Registration Authority provides a service for assigning globally unique identifiers [EUI]. The EUI-64 format is used to build a global identifier in other network protocols. For example, Fibre Channel defines a method of encoding it into a WorldWideName.

The format is eui. followed by an EUI-64 identifier (16 ASCII-encoded hexadecimal digits).

The following EUI name contains example values.

Type EUI-64 identifier (ASCII-encoded hexadecimal)
+- -++--------------+
|   ||              |

The IEEE EUI-64 iSCSI name format can be used when a manufacturer is registered with the IEEE Registration Authority and uses EUI-64 formatted worldwide unique names for its products.

You can check in the UI of the storage array whether an array uses an IQN name or an EUI name.