BladeCluster Solution Manual

Checking the Operation of the Expand Processes and Lines
$NCP and $ZEXP must be running before you add a node to a BladeCluster topology. The
Expand-over-ServerNet line-handler processes and lines are configured and started after the node
is added.
Checking $NCP and $ZEXP
Perform this procedure before connecting the fiber-optic cable from a ServerNet switch in a
BladeSystem node to an Advanced Cluster Hub (ACH).
Required SCF Symbolic NameTACL NameProcess
$ZZKRN.#ZEXP$ZEXPExpand manager
Not applicable$NCPNetwork control process
1. Check that $ZEXP and $NCP are started. At a TACL prompt:
STATUS $ZEXP
STATUS $NCP
2. Check that the $NCP ALGORITHM modifier is set to the same value on all ServerNet nodes
and on all Expand nodes that communicate with the ServerNet cluster. At an SCF prompt:
INFO PROCESS $NCP, DETAIL
If these processes are not properly configured or not started, refer to the Expand Configuration
and Management Manual.
Checking the Status of Expand-Over-ServerNet Line-Handler Processes
Perform this procedure after you have added a node to a BladeCluster or if you cannot start an
Expand-over-ServerNet line.
To check the status of the line-handler processes, either:
• At an SCF prompt, type:
STATUS DEVICE $ZZWAN.*
• Perform the Add Node to ServerNet Cluster action to determine if lines are configured and the
state of the lines. For more information, see the OSM Add Node to ServerNet Cluster online
help.
If you continue to have problems, refer to the Expand Network Management and
Troubleshooting Guide.
Checking the Status of An Expand-Over-ServerNet Line
NOTE: You can also check the status of an Expand-over-ServerNet line using OSM. For details,
see the OSM online help.
Perform this procedure after you have added a node to a BladeCluster, migrated a node, or if you
are having problems with an Expand-over-ServerNet line.
1. To list the Expand-over-ServerNet lines:
LISTDEV TYPE 63,4
The naming convention for Expand-over-ServerNet lines is $SCexpand node number. For
example, $SC035 is the Expand-over-ServerNet line to Expand node number 035.
2. Check that the line is started and ready:
STATUS LINE $SC035, DETAIL
74 Checking Operations