Spinsilk - IBM TotalStorage 300 Service Manual

v DIAG=XMIT
v DIAG=TIMEOUT
v DIAG=ERRSTAT
v DIAG=STATS
v DIAG=PORTWRONG
v DIAG=DATA
v DIAG=PORTABSENT

spinSilk

The spinSilk command is used to verify the intended functional operation of the
Fibre Channel hub by sending frames from the transmitter of each port through the
GBIC, the imbedded optics and external cable, and back to another port's receiver
at the full hardware speed of 1 Gb per second. It exercises the entire path of the
Fibre Channel hub.
Because the CPU is not comparing data on each frame as with the other two frame
tests, the DIAG-DATA error is never reported during spinSilk. However, the other
error messages defined for crossPortTest and their corresponding probable causes
and actions are applicable to spinSilk.
The operation of spinSilk is affected by the state of the GBIC mode. The GBIC
mode is activated by executing the following command prior to executing the
spinSilk command:
switch:admin> setGbicMode 1
When activated, only ports with a GBIC or embedded optics present are included in
the spinSilk list of ports to test. For example, if GBIC mode is activated, ports 0 - 6,
which have imbedded optics, are always included in the testing. Port 7 is only
included if a GBIC is plugged into it.
The state of the GBIC mode is saved in flash. It stays activated (even after restarts
or power on and off cycles) until it is disabled as follows:
switch:admin> setGbicMode 0
An example mode of operation would be to disable the Fibre Channel hub, set the
GBIC mode to 1, and execute the spinSilk command which would limit its testing to:
v All ports with GBIC and embedded optics present
v All ports with GBIC and embedded optics present properly cableloop backed
Attention:
hub. Before issuing the spinSilk command, disable the Fibre Channel hub using the
switchDisable command.
Note: When running the spinSilk test, you must set the operating mode value to 0
The command syntax is:
spinSike nMillions
where:
Do not execute the spinSilk command on an operational Fibre Channel
or 1. Modes 2 and 3 do not send out the ELP used to discover switches and
hubs. If the ELP is not sent, the Fibre Channel hub does not know the port is
connected to another port on the same Fibre Channel hub and the test fails.
Using operating mode 0 when running spinSilk is preferred.
Appendix F. Fibre Channel hub Diagnostics
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