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Administration Guide


Diagnosing problems

To diagnose problems, it is helpful to understand the relationship between CSM and the tools that it uses. These tools are described in the following table:

Tool What It Does CSM Interface
Resource Monitoring and Control (RMC) subsystem Monitors conditions and communicates with all nodes. RMC needs to be running on each node, and the security access control list (ACL) file needs to allow the nodes to communicate with the management server. See Providing security. CSM and ERRM commands
dsh Runs commands remotely on the nodes. Security needs to be set up on each node to allow this for the remote shell that is used by dsh. The default remote shell is rsh. The CSM csmsetupks and updatenodecommands
syslinux Enables network booting during installation. The CSM csmsetupks, getmacs, and installnode commands
atftp Advanced tftp. Handles file transfers during installation. The CSM csmsetupks, getmacs, and installnode commands

The following tips can help you diagnose problems with a CSM cluster:


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