A SAN host entry is a record in the internal table within the Oracle FS System that represents a group of one or more initiators. An initiator is the World Wide Name (WWN) of an FC HBA port. You create host entries manually using the GUI, or automatically using Oracle FS Path Manager (FSPM).
The Oracle FS System automatically creates unassociated SAN host entries when an initiator is discovered on the SAN. The name of the initiator and the unassociated SAN host entry are the same.
A host entry that an administrator associates with one or more host initiators. Use the Associate Hosts option to manually associate the initiators as associated hosts. After associating the initiators to the host, the associated host is a host entry, referred to in the GUI as a host.
A host that FSPM associates with one or more host initiators after logging in to the Pilot. FSPM manages the association of the initiators on the FSPM host to the FSPM host name.
The name of the FSPM host, which is the SAN host that runs FSPM
The list of initiators, which includes the FC ports in the host system
If the Oracle FS System has LUNs, you can map them to any type of host entry. Mapping the LUNs makes them visible to all of the initiators that the host entry owns.
You can move initiators into associated host entries as necessary. When you move an initiator from an unassociated host to an associated host, the system adds the unassociated initiator to the host entry and deletes the unassociated host entry. The system moves the mapped LUNs to the host entry and retains the LUN mappings.
For example, you want to move a LUN (mapped to LUN number 3) to a host that contains a LUN (mapped to LUN number 5). After the move, the associated host contains both LUNs, each mapped to its respective LUN number. If the new and existing LUN numbers are the same, the Oracle FS System assigns a new LUN number to the newly mapped LUN.
Remove the initiator from the first host entry.
Associate the initiator to the new host entry.
Keep all of the LUN mappings that belong to the deleted host with each new unassociated host. Keeping the LUN mappings allows you to map a LUN to another host.
Delete all of the LUN mappings that belong to the deleted host.