3
Installing an SP or SP Filler Module 3-27
Servicing and Upgrading a DPE
Installing an SP or SP Filler Module
CAUTION
!
Handle an SP gently and use an ESD wristband.
1. Perform this step only if you are installing the DPE into an FC-AL
environment. Otherwise, continue to the next step.
If the DPE is operating in a Fibre Channel Arbitrated Loop
environment, each SP requires a unique FC-AL address ID on the
loop to communicate with a server/host. If you are installing a
replacement SP, set its address to be the same as that of the SP you
removed. If you are installing an add-on SP, set the address to a
unique address on the loop. The FC-AL protocol translates the
address ID into an 8-bit arbitrated loop physical address (ALPA).
Valid Fibre Channel address IDs range from 0 through 125
(decimal), 0 through 7D (hexadecimal).
Using the SP FC-AL ID switches, set the FC-AL address ID, as
shown in Figure 3-18.