HP Integrity rx7620 Server - User Service Guide, Sixth Edition

is functioning normally. If the altimeter has failed, and the stable storage value has been lost
because of a core I/O failure or replacement, the MP adjusts the fan speeds for sea-level operation.
NOTE: Fans driven to a high RPM in dense air cannot maintain expected RPM and are
considered bad by the MP leading to a “False Fan Failure” condition.
Power Control
If active, the manageability firmware is responsible for monitoring the power switch on the front
panel. Setting this switch to the ON position is a signal to the MP to turn on 48 V DC power to
the server. The PE command can also be used to send this signal. This signal does not always
generate a transition to the powered state. The following conditions prevent the manageability
firmware from applying 48 V DC power to the server:
• Insufficient number of active bulk power supplies.
• Insufficient number of I/O fans.
• Insufficient number of main fans.
• Ambient temperature is in an OVERTEMP HIGH condition.
Unless one of the following conditions occurs, 48 V DC power to the server is maintained:
• A main fan failure causes there to be an insufficient number of main fans.
• A I/O fan failure causes there to be an insufficient number of I/O fans.
• Ambient temperature reaches an OVERTEMP HIGH condition.
• The front panel power switch is turned OFF.
• The PE command is issued to the manageability firmware to turn off power to the server
cabinet.
Management Processor Commands
Table 5-11 lists the server MP commands.
Table 5-11 MP Commands
DescriptionCommand
Boot a partitionBO
Display FRU Information of an EntityDF
Return to Main MenuMA
Modem resetMR
Power entities on or offPE
Reset entityRE
Reset partition for reconfigurationRR
Reset a partitionRS
Returns all system revisionsSYSREV
Send a TOC signal to a partitionTC
Broadcast a message to all users of the MP command handlerTE
Display list of MP connected usersWHO
Table 5-12 lists the server status commands
88 Troubleshooting