Troubleshooting The Environment - HP Integrity BL860C i4 User's & Service Manual

HP-UX alternatively uses the MP 10/100 BT LAN connection over a private network, to control one or
more server blade operations locally through telnet or SSH, or remotely over a public network through a
web GUI.
NOTE:
RS-232 connection: If a dummy terminal/PC running terminal emulation software is attached to the
iLO 3 MP local port and does not respond to a Ctrl–B key sequence then it is possible that the iLO
3 MP is not operational/functional, or the terminal/terminal emulation software is incorrectly
configured (wrong baud rate for example).

Troubleshooting the environment

Cause
Ambient intake air temperature is often different from ambient room temperature; measure the operating
temperature and humidity directly in front of the cabinet cooling air intakes, rather than measure only
ambient room conditions.
Temperature sensors are found on:
• System board, where the processors provide an integrated temperature sensor
• Status panel, where a thermal sensor detects the ambient room temperature. This sensor's reading is
the main parameter used to regulate fan speed, under normal conditions.
Table 15: Server blade environmental specifications
Parameter
Temperature
Relative
Humidity
108 Troubleshooting the environment
Operating Range Recommended
Operating Range
5°C to 35°C (41°F 20°C to 25°C (68°F
to 95°F) (up to 5000 to 77°F) (up to 5000
feet) feet)
15-80% at 35°C 40-60% at 35
(95°F) degrees 35°C
noncondensing (95°F)
noncondensing
Maximum Rate of Non-Operating
Change Range
10°C (50°F) / hr with -40°C to 60°C
tape (-40°F to 140°F)
20°C (68°F) / hr
without tape
30% per hour 90% at 65°C
noncondensing (149°F)
noncondensing