HP XC System Software Administration Guide Version 4.0

Table Of Contents
Use the following procedure to actualize planned nodes:
CAUTION:
Ensure that the node you install has the same architecture as the nodes in the HP XC system.
For example, if the HP XC system is made up of nodes in the CP6000 Cluster Platform, the
actual nodes must also be in the CP6000 Cluster Platform.
This procedure makes use of the discover utility. If you installed the HP XC system using
the --ic option to specify the interconnect type, you must use the same option for each
invocation of the discover utility. Otherwise, the discover utility configures the fastest
interface it finds available in the hardware configuration, and it may not match what was
previously configured.
1. Determine which physical slot to insert the node.
Note the slot numbers in the enclosure and compare them to the allocation for the planned
nodes. Take care that the physical slot you choose corresponds with a node in the allocation
of planned nodes.
Consider the following example:
There are two enclosures, A and B, each with sixteen nodes per enclosure. The number
of actual nodes is twenty, sixteen (n1 through n16) in enclosure A and four (n17 through
n20) in enclosure B.
There are ten planned nodes, n21 through n30.
The following table shows how the discover names the actualized node depending
on the slot in which the node is installed.
Comments
The discover
command renames it:
If you install a
node in this slot:
The slot is the first available slot and it corresponds to the
first available node name in the allocation of planned nodes.
n17
17
There are empty slots before and after this one. The slot
corresponds with an available node name in the allocation of
planned nodes.
n25
25
This slot is the last slot in the enclosure, but the last node
name in the allocation for planned nodes is n30. The
discover command names that node as n30, even though
it is in the physical slot for node n32.
n30
32
2. Prepare the new node hardware as described in the HP XC System Software Hardware
Preparation Guide.
3. Cable the new node (or nodes) into the system. See the HP XC System Software
documentation for your system for more information.
4. Log in as superuser (root) from the head node.
5. If you added a network switch to accommodate the enclosure for the actual nodes, run the
following discover command so that the CMDB is updated with the information for the
new switch or switches:
# discover --enclosurebased --network
6. If you added a an enclosure for the actual nodes, run the following discover command
so that the CMDB is updated with the information for the new enclosure or enclosures:
# discover --enclosurebased --enclosures
7. Run the discover command with the --nodesonly option:
# discover --enclosurebased --nodesonly
22.3 Actualizing Planned Nodes 271