IBM TotalStorage NAS 300, User Reference

Page: 163 / 200

Bus fault messages
Table 30. Bus fault messages
Message Action
Failure reading I
2
C device (Check
devices on bus 0)
1. If installed, reseat the I
2
C cable between Remote Supervisor
Adapter (in PCI slot 1/J32) and system board (J45).
2. Memory DIMMs.
3. System board.
Failure reading I
2
C device (Check
devices on bus 1)
1. Reseat the I
2
C cable between the operator information panel and
system board (J24).
2. Operator information panel.
3. System board.
Failure reading I
2
C device (Check
devices on bus 2)
1. Reseat the cable between system board and the power supply
(power cage assembly) (J10).
2. Power cage assembly.
3. Power supply.
4. System board.
Failure reading I
2
C device. (Check
devices on bus 3)
1. Reseat the cable between the DASD backplane and connector (J10)
of system board.
2. DASD backplane.
3. System board.
Failure reading I
2
C device (Check
devices on bus 4)
System board
DASD checkout
Table 31. DASD checkout messages
Message Action
Hard disk drive “ X ” removal detected
(level: critical; hard disk drive “ X ” has been
removed)
Information only; take action as appropriate.
Engine shutdown
Refer to Table 32 and Table 33 on page 150 when experiencing appliance engine
shutdown related to voltage or temperature problems.
Voltage-related appliance engine shutdown
Table 32. Voltage-related shutdown
Message Action
System shutoff due to x current over
max value (level-critical; system drawing
too much current on voltage x bus)
See “Power checkout” on page 105.
System shutoff due to x V over voltage
(level-critical; system shutoff due to x
supply over voltage)
1. Check the power-supply connectors.
2. Power supply.
3. Power cage assembly.
Appendix D. Symptom-to-part index
149