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Netra 1290 Server System Administration Guide • May 2006
■
Note that
cfgadm
also shows the I/O assembly
N0.IB6
, but as this is non-
redundant, no DR actions are allowed on this attachment point.
DR Operations
There are four main types of DR operation.
If a system board is in use, stop its use and disconnect it from the system before you
power it off. After a new or upgraded system board is inserted and powered on,
connect its attachment point and configure it for use by the operating system. The
cfgadm
(1M) command can connect and configure (or unconfigure and disconnect)
in a single command, but if necessary, each operation (connection, configuration,
unconfiguration, or disconnection) can be performed separately.
Hot-Plug Hardware
Hot-plug devices have special connectors that supply electrical power to the board
or module before the data pins make contact. Boards and devices that have hot-plug
connectors can be inserted or removed while the system is running. The devices
have control circuits to ensure they have a common reference and power control
during the insertion process. The interfaces are not powered on until the board is
seated and the SC instructs them to power on.
The CPU/memory boards used in the Netra 1290 server are hot-plug devices.
N0.SB
x
TABLE A-1
Types of DR Operation
Type
Description
Connect
The slot provides power to the board and monitors its temperature.
Configure
The operating system assigns functional roles to a board, loads
device drivers for the board, and brings the devices on that board
into use by the Solaris Operating System.
Unconfigure
The system detaches a board logically from the operating system.
Environmental monitoring continues, but devices on the board are
not available for system use.
Disconnect
The system stops monitoring the board, and power to the slot is
turned off.
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