Run mpregister on the Management Server

ClusterPack V2.5 Release Note

Comprehensive Install Instructions

manager_config is an interactive tool that configures the Management Server based on some simple queries. Most of the queries have default values assigned and you just need to press RETURN to assign those default values.

Step 11. Run mp_register on the Management Server

Background

A Management Processor (MP) allows you to remotely monitor and control the state of a Compute Node. By configuring and registering the MP cards for each Compute Node, clbootnodes can be used to automatically answer the first boot questions for each Compute Node.

When you telnet to an MP, you will initially access the console of the associated server. Other options such as remote console access, power management, remote reboot operations, and temperature monitoring are available by typing Ctrl-Bfrom the console mode. It is also possible to access the MP as a web console. However, before it is possible to access the MP remotely it is first necessary to assign an IP address to each MP. This is normally achieved by connecting a serial console device to the serial port on the MP and performing a series of configuration steps. This can be quite tedious and time consuming for moderate to large clusters. To ease the effort, mp_register can perform the configuration for you by issuing the commands via a serial cable.

mp_register maintains a database of knowledge about the MP cards in the system. The database is restricted to nodes that have been added to the cluster with manager_config. Likewise, nodes removed from the cluster are removed from the MP database. The utility is generally designed for single use when setting up the cluster for the first time. However, it can be run multiple times to make changes to MP designations or when nodes are added to the cluster.

NOTE	It is important to note that the configuration step does not configure
	accounts for the MP. By default, anyone can access the MP without a
	password. Leaving the cards without configuring users is a severe
	security risk. Users can freely access the card and shut down the
	node or gain root access through the console. The configuration step
	configures the MP for telnet or web access only to make future
	modifications, such as adding users, simpler to perform.

mp_register will add each MP and associated IP address to the /etc/hosts file on the Management Server. This file will later get propagated to the Compute Nodes. Each MP is assigned a name during the configuration step which is also placed in