Hot-Plug Feature; Dynamic Reconfiguration For Hot-Pluggable System Boards - Sun Microsystems Enterprise 3500 System Reference Manual

3.3

Hot-Plug Feature

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 does not
use the new board until the system is rebooted.
Sun Enterprise Systems have extensive error detection mechanisms that detect failed
components (I/O boards, CPU Memory boards, CPUs, memory) during Power on
Self Test (POST). When a failed component or system board is detected, POST will
put that board into lower-power mode and reconfigure the systems so that failed
boards are 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
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.
3.4 Dynamic Reconfiguration for
Hot-Pluggable System Boards
If the dynamic reconfiguration feature is enabled in the operating environment,
service providers can install, remove, or replace a hot-pluggable system board
without powering down the system. For the Solaris 2.6, Solaris 7, and Solaris 8
Operating Environments, dynamic reconfiguration applies to specific types of
boards in the Sun Enterprise 3x00. For instructions, refer to the Sun Enterprise
6x00,5x00,4x00, and 3x00 Systems Dynamic Reconfiguration User's Guide included in the
online AnswerBook2 for your Solaris Operating Environment or refer to the
docs.sun.com web site for more information on dynamic reconfiguration.
3-4 Sun Enterprise 3500 System Reference Manual • August 2001