My Oracle Support Banner

Analyzing "System not contactable" issues on Sun Fire V20z/V40z servers (Doc ID 1004275.1)

Last updated on MARCH 01, 2018

Applies to:

Sun Fire V40z Server - Version Not Applicable to Not Applicable [Release N/A]
Sun Fire V20z Compute Grid Rack System - Version Not Applicable to Not Applicable [Release N/A]
Sun Fire V20z Server - Version Not Applicable to Not Applicable [Release N/A]
All Platforms
***Checked for relevance on 06-Jun-2014***



- system/server just hangs
- system/server freezes
- system/server won't respond
- no console response
- console dead


This document addresses problems with trying to connect to the Sun Fire V20z/V40z via the Service Processor (SP) or by telnet/ssh/rsh into the system via the network.

Please validate that each troubleshooting step below is true for your environment. The steps will provide instructions or a link to a document, for validating the step and taking corrective action as necessary. The steps are ordered in the most appropriate sequence to isolate the issue and identify the proper resolution. Please do not skip a step.

To discuss this information further with Oracle experts and industry peers, we encourage you to review, join or start a discussion in the My Oracle Support Community - Sun x86 Systems

Available Documentation

The latest documentation on the Sun Fire V20z and V40z servers can be found at:

Sun Fire V20z and Sun Fire V40z Servers Documentation.

This troubleshooting guide makes reference to several of the documents at this location.

Troubleshooting Steps

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.