Prepare the Management Node

These steps prepare the Management Node for xCAT Installation

Install an OS on the Management Node

Install one of the supported operating systems on your target management node.

The system requirements for your xCAT management node largely depend on the size of the cluster you plan to manage and the type of provisioning used (diskful, diskless, system clones, etc). The majority of system load comes during cluster provisioning time.

Memory Requirements:

Cluster Size Memory (GB)
Small (< 16) 4-6
Medium 6-8
Large > 16

Configure the Base OS Repository

xCAT uses the yum package manager on RHEL Linux distributions to install and resolve dependency packages provided by the base operating system. Follow this section to create the repository for the base operating system on the Management Node

  1. Copy the DVD iso file to /tmp on the Management Node:

    # This example will use RHEL-LE-7.1-20150219.1-Server-ppc64le-dvd1.iso
  2. Mount the iso to /mnt/iso/rhels7.1 on the Management Node.

    mkdir -p /mnt/iso/rhels7.1
    mount -o loop /tmp/RHEL-LE-7.1-20150219.1-Server-ppc64le-dvd1.iso /mnt/iso/rhels7.1
  3. Create a yum repository file /etc/yum.repos.d/rhels71-dvd.repo that points to the locally mounted iso image from the above step. The file contents should appear as the following:

    name=RHEL 7 SERVER packages

Set up Network

The Management Node IP address should be set to a static IP address.

Modify the ifcfg-<device> file in /etc/sysconfig/network-scripts and configure a static IP address.