HP XC System Software Installation Guide Version 3.1

• Enter the letter s to perform customized services configuration on the nodes in the system. This
option is intended for experienced HP XC administrators who want to customize service servers and
clients. Intervention like this is typically not required for HP XC systems. See “Services Configuration
Commands” (page 148) for information about each services configuration command.
• Enter the letter p to continue with the system configuration process.
• Enter the letter q to exit services configuration and return to the previous menu.
G.7.1 Services Configuration Commands
The way to affect the services configuration of the nodes in the HP XC system is by setting node attributes
in the configuration and management database. Node attribute names are an identifier consisting of letters,
followed by letters, digits, periods, and underscores, up to a maximum of 64 characters. The services
configuration option of the cluster_config utility provides an interface that enables you to manipulate
node attributes in the database.
Individual nodes can be disabled as servers or disabled as clients of specific services. You must create a
node attribute before you can add it to a node.
The following services configuration commands are available:
[S]ervices Config, [P]roceed, [Q]uit: s
Commands are:
[l]ist - List by attribute
[n]odes - List by node
[c]reate attr - Create new attribute
[d]estroy attr - Destroy existing attribute
[a]dd attr node(s) - Add attribute to node(s)
[r]emove attr node(s) - Remove attribute from node(s)
[w]ipe - Remove/destroy all attributes
[s]ervices - List service assignments
[h]elp - Show help
[b]ack - End services config, return to cluster_config
Examples:
create na_disable_server.cmf
add na_disable_server.cmf n1 n4
remove na_disable_client.supermond n3
destroy na_disable_client.supermond
svcs>
Command Syntax
The following list contains examples of command syntax:
• Create a node attribute (na) to disable a node or nodes as a server of the named service:
svcs> create na_disable_server.service_name
• Create a node attribute to disable a node or nodes as a client of the named service:
svcs> create na_disable_client.service_name
Example: Disable a Server from Serving a Service
To disable node n3 as a server of the cmf service, add the node attribute na_disable_server.cmf to
node n3. This is how you could remove one of several nodes from the list of cmf servers if you wanted
that specific node not to serve that service, even though it was configured to do so by default.
Example: Disable a Client
Similarly, to disable node n1 as a client of the supermond service, enter the node attribute
na_disable_client.supermond to the affected node. In this instance, it is not the server but a client
of the service that is affected.
148 Using the cluster_config Command-Line Menu