IBM 2109 Service Guide - Page 55

Abnormal port LED action (action 5), IBM SAN Fibre-Channel Switch 2109 Model, S16 Users Guide

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Attention: Do not remove any cables or GBICs from ports that have LEDs that are: v Flickering green which indicates that the port is operating normally and communications are in progress. v Steady Green which indicates the port is connected to a functional device but there is no data traffic in progress. If this port is believed to be the problem, the failure is not with the switch. The attached device or host is not attempting to send data. See the appropriate host, device, or application documentation to resolve the problem. 11. Remove and mark the incoming cables from the suspect ports so that you can return them to the same port. 12. Remove and reseat the GBICs. 13. Insert one of the small single-GBIC port-wrap connectors (black if the GBIC is shortwave or gray if the GBIC is longwave). Wait 10 seconds and observe the associated port LED. If the port LED is flashing slow green (flashes every 2 seconds), the GBIC and port are both functional. Do this for all suspect ports. 14. If all port indicators show a slow flashing green (flashes every 2 seconds), check other customer configuration information or the associated fibre-channel cables. See "Checking the customer configuration action" on page 42 and "Suspect fibre-channel cable action" on page 42. 15. If any port does not flash green and you have another port and GBIC to use for a test, swap the GBICs between the ports and try the wrap again. If the failure (not flashing green) stayed with the port, replace the system board. If the failure followed the GBIC, replace the GBIC. In either case, see "Replacing the system board assembly" on page 49. When replacing the system board, mark all cables and GBICs to ensure that they are returned to the same slots. Replacing the system board disrupts the switch operation. Ensure that all traffic on the switch is paused. 16. If you only have this one port available and all others are functional, replace the GBIC. See "Replacing a GBIC module" on page 47. 17. If other ports are available but not other GBICs, insert the suspect GBIC and wrap connector in an empty port. If the associated port indicator flashes green, reseat the GBIC and wrap connector in its original port. If the associated port indicator does not flash green, replace the system board. See "Replacing the system board assembly" on page 49. Replacing the system board disrupts the switch operation. Ensure that all traffic on the switch is paused. When replacing the system board, mark all cables and GBICs to ensure that they are returned to the same slots. 18. If the port does flash green, the problem was a poorly seated GBIC. Abnormal port LED action (action 5) | 1. If the port flashes slow yellow (flashes yellow every 2 seconds), the port is | disabled. The customer needs to re-enable the port using the IBM StorWatch | Specialist Web interface or by using a Telnet session. Instructions for disabling | and re-enabling ports are in the IBM SAN Fibre-Channel Switch 2109 Model | S16 Users Guide. Have the customer re-enable the port. 2. If the port flashes fast yellow (flashes every one-half second): a. Remove the incoming cables from the failing ports. Mark the cables so that you can return them to the same port. b. Remove and reseat the GBICs. Chapter 4. Maintenance action plans 39

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Attention:
Do not remove any cables or GBICs from ports that have LEDs
that are:
v
Flickering green which indicates that the port is operating normally and
communications are in progress.
v
Steady Green which indicates the port is connected to a functional device
but there is no data traffic in progress.
If this port is believed to be the problem, the failure is not with the switch. The
attached device or host is not attempting to send data. See the appropriate
host, device, or application documentation to resolve the problem.
11.
Remove and mark the incoming cables from the suspect ports so that you can
return them to the same port.
12.
Remove and reseat the GBICs.
13.
Insert one of the small single-GBIC port-wrap connectors (black if the GBIC is
shortwave or gray if the GBIC is longwave). Wait 10 seconds and observe the
associated port LED. If the port LED is flashing slow green (flashes every 2
seconds), the GBIC and port are both functional. Do this for all suspect ports.
14.
If all port indicators show a slow flashing green (flashes every 2 seconds),
check other customer configuration information or the associated fibre-channel
cables. See “Checking the customer configuration action” on page 42 and
“Suspect fibre-channel cable action” on page 42.
15.
If any port does not flash green and you have another port and GBIC to use
for a test, swap the GBICs between the ports and try the wrap again. If the
failure (not flashing green) stayed with the port, replace the system board. If
the failure followed the GBIC, replace the GBIC. In either case, see “Replacing
the system board assembly” on page 49. When replacing the system board,
mark all cables and GBICs to ensure that they are returned to the same slots.
Replacing the system board disrupts the switch operation. Ensure that all
traffic on the switch is paused.
16.
If you only have this one port available and all others are functional, replace
the GBIC. See “Replacing a GBIC module” on page 47.
17.
If other ports are available but not other GBICs, insert the suspect GBIC and
wrap connector in an empty port. If the associated port indicator flashes green,
reseat the GBIC and wrap connector in its original port. If the associated port
indicator does not flash green, replace the system board. See “Replacing the
system board assembly” on page 49. Replacing the system board disrupts the
switch operation. Ensure that all traffic on the switch is paused. When
replacing the system board, mark all cables and GBICs to ensure that they are
returned to the same slots.
18.
If the port does flash green, the problem was a poorly seated GBIC.
Abnormal port LED action (action 5)
1.
If the port flashes slow yellow (flashes yellow every 2 seconds), the port is
disabled. The customer needs to re-enable the port using the IBM StorWatch
Specialist Web interface or by using a Telnet session. Instructions for disabling
and re-enabling ports are in the
IBM SAN Fibre-Channel Switch 2109 Model
S16 Users Guide
. Have the customer re-enable the port.
2.
If the port flashes fast yellow (flashes every one-half second):
a.
Remove the incoming cables from the failing ports. Mark the cables so that
you can return them to the same port.
b.
Remove and reseat the GBICs.
Chapter 4. Maintenance action plans
39
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