Diagnosis Guide

604 and 604e High Node characteristics

The 604 and 604e High Node operation is different from other nodes in several areas:

• A power feature is available which adds a redundant internal power supply to the node. In this configuration, the node will continue to run in the event of a power supply failure. Error notification for a power supply failure is done through the AIX Error Log on the node.
• The cooling system on the node also has redundancy. In the event that one of the cooling fans fails, the node will continue to run. Error notification for a power supply failure is done through the AIX Error Log on the node.
• If a hardware related crash occurs on the node, SystemGuard will re-IPL the node using the long IPL option. During long IPL, some CPU or memory resources may be deconfigured by SystemGuard to allow the re-IPL to continue.