before booting a node.
z
Reboot
This sub-menu allows a system administrator to issue the reboot command
on all of the selected nodes. The reboot command can be performed
immediately (this is the default), or delayed for a given time (between 1 to
60 minutes). The administrator can also have a message sent to all the users
on the selected nodes by typing in the "Message" edit box.
Note:
The reboot command is performed on the nodes using
"rsh". This implies that on the Compute Node, permission
must be given to perform commands as superuser/root
from the Management Node. If not, the reboot command
will not work properly.
z
Console Broadcast
There are three types of connections for console broadcast:
{
Telnet connection through the network, if the network is
up on all selected nodes.
{
Telnet connection to the console and through a terminal
server, if all the selected nodes are connected to a
terminal server.
{
Telnet connection through the management card, if all
the selected nodes have a management card.
Note:
Telnet connections through the
management card are not allowed in a
single window mode.
z
Multiple Window
If the user chooses the multiple windows mode, the command launches a
master console window and concurrent mirrored telnet sessions (embedded
in an Xterm) on all the selected nodes. All input typed in the master
console window is mirrored (broadcast) to the telnet sessions on all the
selected nodes. This allows a system administrator to issue the same
command on several nodes, while typing it only once.
In addition, all input typed into one of the individual telnet windows is
directed only to the underlying node. This allows the issuing of commands
specific to a node by typing input directly into the desired Xterm for that
node.
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