HP XC System Software Installation Guide Version 3.2

Table 3-2 Information Required by the discover Command (continued)
Description and User ActionItem
If you are required to use the --oldmp option on the discover command line
for HP XC systems with an HP Integrity head node, you are prompted to supply
the number of nodes that are plugged into the Root Administration Switch.
Number of nodes plugged
into the Root Administration
Switch
If you are required to use the --oldmp option on the discover command line
for HP XC systems with an HP Integrity head node, you are prompted to supply
the number of nodes plugged into application cabinets.
Number of nodes plugged
into application cabinets
4. Be prepared to supply the information listed in Table 3-3, which is required by the
cluster_config utility.
Table 3-3 Information Required by the cluster_config Utility
Description and User ActionItem
You are prompted to configure availability sets for improved availability of
services if you have installed and configured an availability tool (such as HP
Serviceguard) as described in “Task 9: Plan a Service Availability Strategy”
(page 28).
If you are not prompted to configure availability sets and you expected to
configure availability sets, return to “Task 9: Plan a Service Availability Strategy”
(page 28) and ensure you followed all instructions.
Availability sets
A command-line menu appears which enables you to change the default node
role assignments and to add or remove an external Ethernet connection to any
node.
See Appendix F (page 209) for node role definitions and for more information
about using the menu.
Node role assignments and
Ethernet connections
If root ssh keys already exist, you are prompted to regenerate them. If you
regenerate the ssh keys, you cannot run the ssh or pdsh commands to other
client nodes until you reimage them.
For this reason, HP recommends that you regenerate ssh keys so you can
determine if all nodes have successfully booted the new image.
ssh key regeneration
You are prompted to supply the number of NFS daemons to be run on the head
node and on any other NFS server within the system to support the number of
NFS clients in the system. A default is provided based on the number of nodes
in the hardware configuration.
Number of NFS daemons
If you have configured improved availability with HP Serviceguard, you are
prompted to supply the name of a quorum server or the full path to the device
name of the lock LUN.
Quorum server or lock LUN
configuration for
Serviceguard clusters
One node in an HP XC system acts as an NTP server for all other nodes. By
default, this is the head node. All other nodes are NTP clients of this server,
which is known as the internal NTP server. All nodes in the system are
synchronized to the head node.
You have the option to specify up to four external time servers or to use the
default NTP server on the head node.
NTP server configuration
If you assigned the avail_node_management role to a node in an availability
set with the head node, you are prompted to specify how you want to handle
improved availability for the dbserver service. You can choose between no
improved availability or enabling improved availability through an availability
tool.
Improved availability of the
database server
For systems with a QsNet
II
interconnect, you are asked to supply the type of
network. The network type reflects the maximum number of ports the fabric
topology can support, and it is used to create the qsnet diagnostics database.
See Appendix H (page 223) for information about how to determine the QsNet
II
network type.
QsNet
II
network type
3.2 Task 1: Prepare for the System Configuration 59