IBM RS/6000 SP, Maintenance Information

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MAP 0110: Supervisor Subsystem
MAP 0110: Supervisor Subsystem
The supervisor subsystem consists of the following components:
Ÿ Node supervisor card (one per processor node)
Ÿ
Switch supervisor card (one per switch assembly)
Ÿ
Internal cable (one per thin processor node or switch assembly)
Ÿ Supervisor bus card (one per thin processor node or switch assembly)
Ÿ Supervisor harness (two per frame)
Ÿ Supervisor jumper cables (two per frame—PDU only)
Ÿ Connector card (PDU only)
Ÿ
Backplane card (PDU only)
Ÿ
Frame supervisor card
Ÿ Serial cable (RS-232)
Ÿ SAMI cable
Table 1-1. 8-LED Frame Supervisor LED Definitions
LED
# Color Signifies
8 Yellow Control workstation current communication status (S1-RS232 data terminal ready line):
Ÿ Momentarily On: Communication active
Ÿ
Flashing: Problem—cannot communicate with control workstation
7 Yellow Control workstation current communication status (S2-RS232 data terminal ready line):
Ÿ Momentarily On: Communication active
Ÿ Flashing: Problem—cannot communicate with control workstation in a HACWS configura-
tion. In a configuration without HACWS, a flashing LED 7 is normal.
Ÿ Off: Communication inactive
Note: Be aware that there may be communications to the inactive control workstation
6 Yellow Supervisor bus communication status:
Ÿ
Flashing: Problem—no communication with processor node(s) or switch assemblies
Ÿ
Off: Communication okay
5 Yellow Not Used
4 Green Connection S1 to primary control workstation
Ÿ
On: Active
Ÿ
Off: Inactive
3 Green Connection S2 to secondary control workstation
Ÿ On: Active
Ÿ Off: Inactive
2 Green Bulk 48 V dc power status:
Ÿ On: All 48 V dc power supplies operating okay
Ÿ Flashing: 48 V dc power supply problem
Ÿ Off: No 48 V dc power available
1 Green Supervisor power status:
Ÿ On: Supervisor power present
Ÿ Off: No supervisor power
Refer to Figure 1-2 on page 1-12 and Figure 1-3 on page 1-13 to view the supervisor subsystem for the
PDU and SEPBU, respectively.
Table 1-1 and Figure 1-1 on page 1-11 show the twin tail frame supervisor LED definitions.
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RS/6000 SP MAPs