Hot-Plug Feature - Sun Microsystems Enterprise 6500 Reference Manual

5.4

Hot-Plug Feature

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 peripheral
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.
The hot-plug feature enables you to insert a new board into a powered-on system,
despite the system being "live," or being supplied with electrical power. When the
hot-plug feature is used to add a board to a powered-on system, the system will not
use the new board until the system is rebooted.
Chapter 5 Disk Boards and Components 5-5