Chapter 6. IBM System x3850 X5 and x3950 X5 2536.8.3 IMM communications troubleshootingThe Integrated Management Module User Guide is an excellent guide to help you with everyaspect of configuring and using the IMM. Download the guide from this website:http://ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5079770Most communication errors are due to network switch configuration options, such as blockedports or VLAN mismatches. The following procedure shows you how to determine this type ofproblem by connecting directly to the IMM port with a mobile computer and Ethernet patchcable and pinging and then starting a web session.If you can ping the IMM, you have a good direct network link. If the web session fails, gothrough the following steps:1. Try another web browser.2. Directly access the Integrated Management Module configuration panel and reset the IMMin F1-Setup by selecting System Settings Integrated Management Module ResetIMM. You will have to wait about 5 minutes for the IMM to complete enough of its reboot toallow you to ping it. This IMM reset will have no impact on the operating system that isrunning on the server.3. Try clearing the web browser cache.4. Load the factory default settings back on the IMM through F1-Setup by selecting SystemSettings Integrated Management Module Reset IMM to Defaults. The IMM willneed to be reset again after the defaults are loaded.5. Contact IBM support.6.8.4 IMM functions to help you perform problem determinationThis section provides additional problem determination tips for the IMM. This section coversthe following topics: “System Status” “Virtual light path diagnostics” on page 255 “Hardware event log” on page 256 “Remote control” on page 257System StatusThe first panel that you will see after completing the login and the session timeout limits panelis the System Status panel, as shown in Figure 6-30 on page 254. This panel provides aquick summary review of the hardware status of the server.A green circle indicates that all is working from a strict hardware point of view. The IMM cancheck on the status of server components, the ServeRAID controllers, and PCIe interfaces tomost PCIe adapters. It does not check on the functional status of most PCIe adapters withregard to their hardware connections to external devices. You will need to refer to the systemevent log from within the operating system or the switch logs of the network and fibre switchesto which the server is connected to resolve connectivity issues.Crossover cable: The management port is a 10/100 Ethernet port, so if your mobilecomputer does not have a 10/100/1000 Ethernet port on it, you will need to replace thepatch cable with a 10/100 crossover cable. Only a 1Gb Ethernet port has the ability toauto-negotiate medium-dependent interface crossover (MDIX) when they auto-negotiatespeed and duplex.
