HP XC System Software Installation Guide Version 4.0

G.6 Analyzing and Comparing Current Role Assignments to HP
Recommendations
From the command-line menu of the cluster_config utility, enter the letter a to analyze
current node role assignments with those recommended by HP.
[L]ist Nodes, [M]odify Nodes, [A]nalyze, [H]elp, [P]roceed, [Q]uit: a
HP recommends using this option any time you run the cluster_config utility, even when
you are configuring the system for the first time.
First Portion of Analysis Output
Example G-1 shows the first portion of the analysis that provides the general recommendations
for dividing the system into service servers and compute nodes based on the total number of
nodes (in this example, the recommendations are for a 500-node system).
Example G-1 First Portion of cluster_config Analysis
Recommended Cluster Configuration Total Nodes: 500
----------------------------------------------------------------
9 Nodes assigned service roles
1 Exclusive servers
1 resource_management(slurm)
8 Non-exclusive servers
490 Compute nodes
Table G-2 provides a detailed explanation of the output.
Table G-2 First Portion of cluster_config Analysis Option
DescriptionItem
Shows the actual total number of nodes in the system.Total nodes
Shows the recommended number of nodes to be assigned any role except
the compute role.
Nodes assigned service roles
Shows the recommended number of nodes to be dedicated to a role.Exclusive servers
Shows the recommended number of nodes to have roles assigned other
than the compute role minus the number of exclusive servers.
Non-exclusive servers
Shows the recommended number of dedicated compute nodes.Compute nodes
Second Portion of Analysis Output
Example G-2 shows the second portion of the command output that provides information about
specific role assignment recommendations. This output does not identify specific node names.
To determine specific node names, use the List function.
Example G-2 Second Portion of cluster_config Analysis
Role HN HN Ext Ext Exc
Recommend Assigned Rec Req Rec Req Rec Rec Role
----------------------------------------------------------------
1 0 avail_node_management (optional)
0 0 cisco_hsm (optional)
490 490 compute
1 1 console_network
1 1 disk_io
8 8 external
1 1 ldap_server (optional)
1 0 login (optional)
1 1 management_hub
1 1 management_server
16 0 nis_server (optional)
1 1 N resource_management
226 Using the cluster_config Command-Line Menu