HP XC System Software Administration Guide Version 3.0

2. Starting Up and Shutting Down the HP XC System
This chapter describes the information and procedures for starting up and shutting down an HP XC system.
This chapter addresses the following topics:
• Understanding the Node States (page 37)
• Starting Up the HP XC System (page 39)
• Shutting Down the HP XC System (page 40)
• Shutting Down One or More Nodes (page 40)
• Determining a Node's Power Status (page 40)
• Locating a Given Node (page 41)
• Disabling and Enabling a Node (page 41)
Understanding the Node States
The nodes of the HP XC system exist in various states, which are described in Table 2-1..
A node's state depends on several factors, including the following:
• Is the node powered on?
• Does the node need to be imaged?
The software on client nodes must be synchronized with a central collection of software for the nodes,
called the golden image, which resides on a node called the golden client. Imaging replicates the
software from the golden client onto the node using the rsync or flamethrower utilities. The golden
image and software distribution are discussed in Chapter 8.: Distributing Software Throughout the
System (page 79).
• Did the node fail to image?
• Did the node fail to boot?
Understanding the Node States 37