HP XC System Software Administration Guide Version 3.2

Table 3-1 Node States (continued)
DescriptionNode State
The node failed to boot.
The node is returned to the Boot_Ready state.
Boot_Fail
The node is ready for use.
AVAILABLE
Nodes transition between node states accordingly. Figure 3-1 illustrates the transition of node
states.
Figure 3-1 Transition of Node States
A node that does not require imaging is powered on in the POST state, enters the Booting state
when it is booting, and is in the Available state when it is ready for use in the HP XC system.
A node that requires imaging is considered to be in the Raw_Off state until it is powered on.
Then it enters the POST state. When the node is imaged, it is in the Imaging state. After
completing imaging, the node enters the Boot_Ready state and is returned to the POST state.
When the node is booting, the node is in the Booting state. It enters the AVAILABLE state when
it is ready for use.
A node that fails to image is returned to the Raw_Off node from the Image_Fail state.
A node that fails to boot is placed in the Boot_Fail state. Depending on the number of retries,
it is placed in the Boot_Ready state and returns to the POST state to attempt booting again.
3.2 Starting Up the HP XC System
The startsys command implements system startup by booting nodes in the sequence essential
for the system to function. The startsys command boots the system nodes in two groups:
• Nodes that provide essential system services. This group is booted first.
• All other nodes.
54 Starting Up and Shutting Down the HP XC System