IBM RS/6000 7043 260, Руководство по обслуживанию

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In addition to the parameters in the table below, you may wish to disconnect the
modem to prevent incoming signals that could cause the system to power on.
Following are the Service Processor settings of your interest. The Service Processor
menus are described in “Service Processor Menus” on page A-3.
Another feature that could disrupt a service action by powering the system on is an
AIX function called "Timed Power-On". If you think it should be turned off during your
service action, refer to the "System Power-On Methods" in the System User's Guide:
Operating System and Devices (order number SC23-4126).
Surveillance From the Service Processor Setup Menu, go to
the Surveillance Setup Menu and disable
surveillance.
Unattended Start From the Service Processor System Power
Control Menu, disable unattended start mode.
Reboot Policy From the System Power Control Menu, go to
the Reboot/Restart Policy Setup Menu and set:
1. Number of reboot attempts to 0 (zero)
2. Use OS-Defined restart policy to No
3. Enable supplemental restart policy to No.
Call Out From the Call-In/Call-Out Setup Menu, go to the
Serial Port Selection Menu and disable call-out
on both serial ports.
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Service Guide