HP Insight Cluster Management Utility - Manual (Page 108)

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Detailed logs are in /opt/cmu/log/cmucerbere.log and/opt/cmu/log/cmucerbere-*.log
[INFO] CMU does not seem to be running
/opt/cmu/tmp/GUI/config.txt was rewritten
cmu>
Adding a new logical group
The add_logical_group command creates a new logical group. Parameters are specified on
one line:
cmu> add_logical_group image_name "device"
For example:
cmu> add_logical_group my_logical_group "cciss/c0d0"
processing 1 logical group ...
Adding nodes to a logical group
The add_to_logical_group command adds nodes to a logical group. Parameters are specified
on one line:
cmu> add_to_logical_group nodes to group_name
For example:
cmu> add_to_logical_group o184i115 - o184i116 to my_logical_group
selected nodes: o184i115 o184i116
processing 2 nodes...
Backing up a node
Backs up one node in an existing logical group. Prior to this backup, you must know the complete
name of each partition you intend to back up. Two possible syntaxes are available for this command.
You can specify all the parameters on one line, or use only the backup command to get an
interactive backup menu:
cmu> backup
or:
cmu> backup "image_name" "root_partition,other_partition" node_name
You must specify the root partition before any partition. However, other partitions can be mentioned
in any order.
IMPORTANT: If some partitions are omitted, then nodes which will be cloned from the image
created by the backup command might not function correctly. For example, an image of a system
with separate / and /boot partitions cannot be cloned successfully if you omit /boot from the
list of partitions to back up.
The following example backs up three partitions on a hard disk of a node.
cmu> backup "test_julien" "sda1,sda5,sda9" o185i195
active node list selected: o185i195
node list found in backup group test_julien: o185i195
[INFO] CMU does not seem to be running
Copying the ssh settings
hostname setup ok
logout ok
Booting the Node over the network
Waiting for node o185i195 to boot
/opt/cmu/tmp/GUI/config.txt was rewritten
[WARNING] Timeout have expired while waiting for the node to network boot
[WARNING] Backup may fail
Save /opt/cmu/log/cmudolly.log file
tail -f /opt/cmu/log/cmudolly.log
Starting retrieving fstab
[16:15:13] [Dolly] Running OS : "Linux/2.6.16-rc6-git1-4-bigsmp"
108 Managing a cluster with HP Insight CMU