User's Manual

3-4 UltraEnterprise6000/5000/4000 Systems Manual—November1996
3
Figure 3-2 Load Board (Enterprise 6000 Systems Only)
3.3 Hot-PlugFeature
Enterprise systems have extensive error detection mechanisms, and an
Automatic System Reconfiguration (ASR) feature that enables the system to be
rebooted with failed components (such as CPUs, memory, or I/O) disabled.
When an error is detected, the system can be reconfigured so that the board
containing the failed components is placed in low power mode and is no
longer accessible.
Caution – The peripheral power supply provides the precharge voltages
required for hot-plug. Do not attempt hot-plug of a system component if the
power supply is missing or inoperative. Use prtdiag(1M)to determine the
status of the peripheral power supply.
Caution – If the message: NOTICE: Hot Plug not supported in this
system is displayed during boot, do NOT attempt hot-plug in this system or
damage to the hardware will occur.
Springfingers
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