Installation guide

CHAPTER 6 Administering ESX Server
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Viewing Failover Paths Connections
The Failover Paths page allows you to review the current state of paths between your
system and SAN LUNs. Multipathing support allows your system to maintain a
constant connection between the server machine and the storage device in case of
the failure of a host bus adapter (HBA), switch, storage controller, or a Fibre Channel
cable.
For each SAN Logical Unit Number (LUN), this page displays the available paths and
the preferred path. By default, ESX Server selects the last path used to access a LUN.
The failover paths show the adapter, target, LUN and the SAN target for the LUN. Each
SAN target is identified by its World Wide Port Name.
The status of each path is indicated by a symbol that corresponds to its current status.
— This indicates that the path is active and data is being transferred successfully.
— This indicates that the path is set to disabled and is available for activation.
— This indicates that the path should be active, but the software cannot connect
to the LUN through this path.
If you have configured a LUN to use a preferred path, that path will be identified with
the label Preferred after the SAN Target listing.