HP Integrity rx2800 i2 Server User Service Guide

Cooling subsystem behavior
The iLO 3 MP controls fan speed on ambient air temperatures, chip temperatures, server
configuration, and fan operation or failure. Air is drawn through the front of the server and pushed
out the rear by the cooling fans. You can display fan status remotely with the iLO 3 MP ps command.
Within the server, temperature sensors report server temperatures to iLO 3, which controls fan
speed based on this information.
Table 35 Cooling subsystem events that illuminate SID LEDs
NotesSourceCauseSample IPMI EventsDiagnostic
LEDs
Cleared when fan is
replaced
iLO 3Fan has either
previously failed or
is degrading
Type 02h, 0Ah:07h:01h
COOLING_UNIT_WARNING
Fans (1-6)
Cleared when fan is
replaced
iLO 3Fan has failed and
no longer meets
Type 02h, 0Ah:07h:02h
COOLING_UNIT_FAILURE
Fans (1-6)
minimum
requirements
Troubleshooting the I/O
This subsection provides information on troubleshooting issues with the public PCIe slots.
I/O subsystem behaviors
The main role of the I/O subsystem is to transfer blocks of data and instruction words between
physical shared memory and virtual memory (system disks or disk array). The system boot is the
first time blocks of data and instructions are transferred into physical memory from a local disk or
DVD or over the network. This process is referred to as Direct Memory Access (DMA) and is initiated
by I/O devices located in I/O or on Host Bus Adapter (HBA) I/O cards and does not involve any
logical processors.
Customer messaging policy
• See the SEL for any action from low level I/O subsystem faults, because the System Insight
Display may not have any illuminated LEDs.
• For configuration-type errors, for example, no iLO 3 MP or core I/O HBAs installed or working,
see “Supported configurations” (page 83) for actions.
• Some diagnostic messages are reported for high level I/O subsystem errors. All fatal I/O
subsystem errors cause global MCAs.
Table 36 I/O subsystem events that light SID LEDs
NotesSourceCauseSample IPMI eventsDiagnostic
LEDs
Likely a short on
I/O card or I/O
slot.
iLO MPOver-current on PCI slotType 02h, 03h:05h:01h
CURRENT_LIMIT_EXCEEDED
I/O Card
A voltage on the
I/O riser is out of
iLO MPVoltage on CRU is
inadequate
Type 02h, 02h:07h:03h
VOLTAGE_DEGRADES_TO_NON_RECOVERABLE
I/O Riser
range (likely too
low)
A voltage on the
disk backplane is
iLO MPVoltage on CRU is
inadequate
Type 02h, 02h:07h:03h
VOLTAGE_DEGRADES_TO_NON_RECOVERABLE
Disk Backplane
out of range
(likely too low)
Troubleshooting the I/O 93