HP XC System Software Installation Guide Version 4.0

Table 6-1 Information Required by the cluster_config Utility (continued)
Description and User ActionItem
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 assign 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.
Configure Nagios web access
and improved availability
If you assign 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.
Improved availability for the
NAT service
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
6.1 Preparing to Answer cluster_config Questions 97