Compaq Infortrend Manuale Utente

 

 

Use the 

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  keys to scroll down to “View and Edit Configuration

Parameters,” "Host-side SCSI Parameters," and then "Fibre
Connection Option."  A prompt will display all the options.  Select
one appropriate for your Fibre channel topology.  If connection to
host is through a Fibre hub, choose "Loop only."
 
 

If connection to host is through a Fibre switch F_Port or directly to a
server, choose "Point to point only."  Proper selection is necessary
and will decrease overhead on data transmission.
 
 

A redundant controller configuration should always have its host
connection configured in FC-AL mode.  For a switched fabric
configuration, a redundant controller system can be connected to the
FL_ports on an FC switch and then the host computers connect to its
F_ports.

Fibre drives are usually configured in a JBOD enclosure.  Through
the enclosure backplane, these drives form one or two circuit loops.
You may choose to assemble certain number of disk drives into a
dual-loop configuration using two of the controller channels.

To configure a dual-loop, connect two of the drive channels each to
an FC-AL port on the drive enclosure (JBOD).  Please refer to the
related documents that came with your drive enclosure for the
connection details.

The dual-loop configuration not only doubles traffic bandwidth by
separating the transmitting and receiving paths but also provides
path redundancy.  I/O traffic will be continued should one data
path fail.