MAP 2320: SSA Link
This MAP helps you to isolate FRUs that are causing an SSA loop problem between a
device and the IBM SerialRAID Adapter, or between two devices. If you are not
familiar with SSA loops, read the information relating to SSA links, strings, and loops
contained in the
IBM SerialRAID Adapter: Installation and User's Guide
.
Attention: It is not necessary to turn off the system unit when servicing the SSA loop,
unless you have to turn it off for some other reason. Unit power cables and external
SSA cables that connect the devices to the system can be disconnected while that
system is running.
001
ARE THE SSA SERVICE AIDS AVAILABLE?
Yes No
002
Go to Step 004.
003
Go to Step 007.
004
(From step 002)
ARE ANY LINK STATUS (READY) LIGHTS FLASHING ON THIS SSA LOOP?
Yes No
005
– Note the PAA (that is, the last three digits) of the SRN.
Go to “Finding the Physical Location of a Device” on page 38.
006
Go to “SSA Link Errors” on page 15.
007
(From step 003)
– Using the DOS Configurator, select select SSA Adapter List fron the main menu.
– Select the required adapter from the SSA Adapter List.
(Step 007 continues)
MAPs 2320-1