Table1-1. Switch Problem Diagnostics (continued)
Priority Message or condition Action
2
(2 of 4)
Environmental problems
vControl workstation errpt file reports a switch
failure, shutdown, or warning message
associated with a fan, power supply,or
temperature indicator
vPerspectives switch environmental indicator is
yellow and a fan or power supply indicator is red
vPerspectives switch environmental indicator is
either yellow or red and the temperature
indicator is either yellow or red
vYellowswitch supervisor LED is on or flashing
Go to “Switch environment (MAP 0600)”on
page1-9.
3
(3 of 4)
Power problem
vGreen switch supervisor LED is off or flashing
vPerspectives switch power indicator is red
vSwitch has no power
vAll voltages at zero
Go to “Switch power (MAP 0610)”on
page1-13.
4
(4 of 4)
Switch function problem
vError in /var/adm/SPlogs/css0/p0/out.top (see
note)
vProblem with switch_responds
vProblem returned from errpt -a -N Worm or
errpt -a -N css0 (issued on the primary node)
vProblem detected by CE/customer.
Go to “Switch function (MAP 0620)”on
page1-17.
Notes:
1. out.top is located on the primary node. Tofind the primary node, issue:
Eprimary
2. Verify that the file has a valid (recent) time stamp using:
ls -l
Switch supervisor communications (MAP 0595)

Notes:

1. Refer to “Service position procedures” on page 3-10 for procedures used to place the switch into the

service position or for removing it from the service position.

2. Refer to Table 1-2 for descriptions of the SP Switch2 supervisor LED indications.

Table1-2. SP Switch2 supervisor LED indications
Green LED YellowLED Indication
On Off Normal switch operation
Flashing Off Logically powered off (48 V available)
Off Off Physically powered off (48 V circuit breaker off)
On On Non-critical power or environmental problem
On, Off, or Flashing Flashing Critical power or environmental problem
Note: For this indication, the green and yellow LEDs are flashing
together.
Off On Supervisor communications or base code problem
Switch Description and Problem Determination (MAP 0590)
1-6 RS/6000 SP: SP Switch2 Service Guide