Users Guide

Table Of Contents
Figure 2. Connecting a 4-port controller to enclosures in Multiple Multipath
Similarly, you can connect a maximum of two Array584EMM enclosures to a 4-port HBA355e adapter.
NOTE: MD14xx and Array584EMM enclosures cannot be connected to the same HBA355e adapter.
If the communication channel between any two enclosures is lost, the redundant path configuration is degraded and the health
of the logical connector is displayed as Degraded. For a brief outline of this scenario, see the following table:
Table 18. Path between Enclosure
n
and Enclosure
n
+1
Health of Logical Connector Path between Enclosure
n
and Enclosure
n
+1
Connector 0 (C0) Connector 1 (C1)
Available Available
Available Degraded
Clearing The Redundant Path View
Consider a case where you reboot your system and Storage Management, displays the logical connector with a path failure
message. It is possible that you may have intentionally unplugged the second connector. In this case, the path failure message
is not relevant. There could be a fault in the connected cable or the cable may not be connected properly to the controller. In
both cases, Storage Management displays that the system was in redundant path configuration before reboot and is no longer
in this configuration. If you are sure you, do not want the redundant path mode, clear the existing redundant path view using
Clear Redundant Path View provided in the Changing The Controller Properties controller task. Selecting this option clears
the redundant path view and the connectors are represented on the user interface as Connector 0 and Connector 1.
NOTE: The Clear Redundant Path task is not supported on external HBAs.
Setting The Patrol Read Mode
NOTE: This task is not supported on PERC hardware controllers running in HBA mode.
70 Controllers