HP Insight Cluster Management Utility manual Operating systems supported, On the management node

In the HP Insight CMU implementation, the compute nodes share the operating system on the HP Insight CMU management node. Each compute node has its own read/write directory hosted on the administration server. Each time a compute node starts, it mounts most of the operating system through NFS as read-only and its own directory through NFS as read/write. Each client has its own read/write directory so that one client cannot affect another.

The exported operating system is copied from a third node, referred to as the golden node, that you must install with the same system release as the management node. After the installation is complete, the golden node can also be started from the network as a compute node.

4.8.2 Operating systems supported

HP Insight CMU v7.1 supports the diskless functionality on Red Hat Enterprise Linux (RHEL)5.2, RHEL5.3, RHEL5.4, RHEL6.0, RHEL6.1; and SUSE Linux Enterprise Server (SLES)10 SP2 and SLES11.

4.8.3 Installing the operating system on the management node and the golden node

IMPORTANT: The cluster must be homogeneous. Use the same distribution to install the HP Insight CMU management node and the golden node.

Install the operating system on the management node and on the golden node. In addition to the prerequisites described in “Install required RPMs” (page 131), the following prerequisites must be met:

On the management node

Install the rpm file system-config-netboot-cmd-cmu-0.1.45.1_X-Y.noarch.rpm.

IMPORTANT: This package is delivered in the HP Insight CMU CD. Do not use any other system-config-netbootpackage from the OS distribution.

NOTE: For SLES 10 only, install the python-xmlrpm from the software distribution.

On the golden node

Install the following prerequisites on the golden node:

NOTE: Package names may vary depending on the OS distribution.

•busybox

•busybox-anaconda (RHEL5 only)

•dhclient (dhcp-client on SLES)

•bind-utils (not required on SLES)

4.8.4Modifying the TFTP server configuration

1.Install TFTP on the head node.

2.Start TFTP on the head node.

3.Modify /etc/xinetd.d/tftp as follows:

#default: off

#description: The tftp server serves files using the trivial file transfer \

#protocol. The tftp protocol is often used to boot diskless \

#workstations, download configuration files to network-aware printers, \

#and to start the installation process for some operating systems. service tftp

{

disable = no

socket_type	= dgram
protocol	= udp
wait	= yes

56 Provisioning a cluster with HP Insight CMU