HP XC System Software Installation Guide Version 3.0

The license manager service enables some software components in the system when a valid license is present.
Resource Management Role
Nodes with the resource_management role provide the services necessary to support SLURM and LSF.
On systems with fewer than 63 total nodes, this role is assigned by default to the head node. On large-scale
systems with more than 64 nodes, this role is assigned by default to the node with the internal node name
that is one less than the head node. For example, if the head node is n256, node n255 is assigned as the
resource manager. On large-scale systems, the resource_management role is exclusive; the node with
this role has no other roles assigned to it.
The management database names of the services provided by this role are as follows:
• LSF master node (lsf)
• SLURM central control service (slurm)
You can assign this role to multiple nodes in the cluster to provide support for failover. Multiple nodes may
have this role defined, but only one is active at a time. If the SLURM central control service fails on the active
node, the daemon will be started on another node with the resource management role.
Role Definitions 95