Establishing Console Sessions Between The Distributed Management Card And Node Boards - Sun Microsystems Netra CT 820 Administration Manual

Establishing Console Sessions Between the
Distributed Management Card and Node Boards
Once you have configured your system for multiple console use, you can log in to
the distributed management card and open a console for a slot. The Netra CT system
allows four console users per node board slot.
TABLE 3-5
that can be executed from the current login session on the distributed management
card.
TABLE 3-5
Command
console cpu_node
break cpu_node
setescapechar value
showescapechar
Most node board consoles use the system management bus, but a board at the
OpenBoot PROM level connects over the IPMI bus. There can be only one console
user on the IPMI bus at any one time.
For example, if the board in slot 4 is at the OpenBoot PROM level, the user opening
a console session will connect to it over the IPMI bus. This will cause the IPMI bus
to be fully occupied and no other users can connect over that bus. If they try, an
error message displays. However, other users can connect to boards in other slots
over the system management bus. The system management bus is faster than the
IPMI bus, while the IPMI bus is typically a more stable communication channel than
the system management bus.
56 Netra CT 820 Server System Administration Guide • March 2004
shows the distributed management card CLI console-related commands
Distributed Management Card CLI Console-Related Commands
Description
Enter console mode and connect to a specified node board,
where cpu_node can be 3 through 20.
Put the specified node board in debug mode, where cpu_node
can be 3 through 20. Debug mode can use OpenBoot PROM or
kadb, depending on server configuration.
Set the escape character to be used in all future console sessions.
The default is ~ (tilde). Refer to
use.
Show the current escape character.
for escape character
TABLE 3-6