Executing a command on specific nodes of a logical group

You can use the but option to exclude active nodes of a group from the selection. Nodes to exclude can be specified with any combination of regular expressions.

cmu> boot all default but o185i222 - o185i252active node list selected: o185i194 o185i202 o185i216 o185i253 o185i254 cmu>6.17.4 Administration and cloning commandsBooting a set of nodes

You can boot any number of nodes in the cluster. Regular expressions to specify a list of nodes described above are accepted.

The boot modes are:Normal mode boots nodes on the default device, generally the hard drive.Network mode fills the dhcpd.conf file to boot nodes over the network.cmu> boot [net] cmu_nodes_regular_expressionBooting node o185i192 normal on the hard drive:cmu> boot o185i192

active node list selected: o185i192 Entering normal Boot

Booting node o185i192

Not using ssh/rsh shutdown because node o185i192 is not pinging Doing a powercycle of node o185i192 via lo100i (OFF then ON) Boot order has been sent to every node

Boot process finished !!

Please read /opt/cmu/log/Boot-lo100i-Tue-08-Aug-at-12h36m23s.log to check errors cmu>

Booting node o185i192 with the network:cmu> boot net o185i192

active node list selected: o185i192

Cleaning previous kickstart boot option Copying /etc/hosts to /opt/cmu/ntbt/rp/etc/ Entering Network boot

Writing dhcpd.conf

dhcpd.conf written successfully

Booting node o185i192

Not using ssh/rsh shutdown because node o185i192 is not pinging

Doing a powercycle of node o185i192 via lo100i (OFF then ON)

Waiting 1 second (cooldown)...

Waiting 5 minutes before removing the dhcpd.conf

Boot process finished !!

Please read /opt/cmu/log/Boot-lo100i-Tue-08-Aug-at-12h40m36s.log to check errors cmu>

Broadcasting commands to a set of nodes

Broadcast launches the interactive single window broadcast utility. You can use the regular expressions described above to specify nodes. The command uses telnet and secure shell.

NOTE: This command has limited functionality. For more information on this command, see “Multiple windows broadcast” (page 94).

cmu> broadcast cmu_nodes_regular_expression

6.17 HP Insight CMU CLI 105