HP XC System Software Installation Guide Version 3.2

Table 3-3 Information Required by the cluster_config Utility (continued)
Description and User ActionItem
For systems with a QsNet
II
interconnect, you are asked to supply the number of
node-level and top-level switches in the configuration.
Enter the number of node level switches in your
configuration [1-32]:
Enter the number of top level switches in your configuration
[0-32]:
Number of QsNet
II
node-level and top-level
switches
If you modified the default role assignments and assigned a login role to one
or more nodes, you are prompted to enter an LVS alias. This is the host name
that users will use to log in to the HP XC system.
You have the option to decide whether you want the LVS director to act as a real
server, that is, a node that accepts login sessions:
Do you want the LVS director to act as a real server? (y/n)
If you answer yes, the LVS director is configured to act as a login session server
in addition to arbitrating and dispersing the login session connections.
If you answer no, the LVS director does not participate as a login session server;
its only function is to arbitrate and disperse login sessions to other nodes. This
gives you the flexibility to place the login role on the head node yet keep the
head node load to a minimum because login sessions are not being spawned.
The default is to configure the LVS director as a real server if LVS is not
configured with improved availability. If LVS is configured with improved
availability, the default is to arbitrate and disperse only.
If you assign the login role to nodes in an availability set, you are prompted
to specify how you want to handle improved availability for the lvs director
service. You can choose between no improved availability or enabling improved
availability through an availability tool.
LVS configuration
You are prompted to enable web access to the Nagios monitoring application.
HP recommends that you enable web access because it is the only mechanism
with which you can view the data collected by Nagios.
You will have to supply a password for the Nagios administration user. This
password does not have to match any other password you previously provided.
If you assigned the management_server role to the nodes in an availability
set, you are prompted to specify how you want to handle improved availability
for the Nagios master service. You can choose between no improved availability
or enabling improved availability through an availability tool.
Nagios configuration
If you assigned the external role to the nodes in an availability set, you are
prompted to specify how you want to handle improved availability for the nat
service. You can choose between no improved availability or enabling improved
availability through an availability tool.
You are also prompted to enter an additional external IP address to use as an
external alias.
NAT configuration
You are prompted to configure the snmptrapd service if the hardware
configuration includes HP server blade enclosures or if you have defined an
mcs.ini file to configure MCS devices.
Configuring the snmptrapd service enables Nagios to generate alerts for critical
SNMP traps sent from either an enclosure or an MCS device.
snmptrapd service
configuration
60 Configuring and Imaging the System