IBM System x3550 M4 Installation And User Manual

Also see for Redboks System x3550 M4: User guide Product guide Installation and service guide Product guide

Contents

IBM System x3550 M4 Installation And User Manual Manual pdf 31 page image

v Power-control button and power-on LED: Press this button to turn the serveron and off manually. The states of the power-on LED are as follows:Off: Power is not present or the power supply, or the LED itself has failed.Flashing rapidly (4 times per second): The server is turned off and is notready to be turned on. The power-control button is disabled. This will lastapproximately 5 to 10 seconds.Flashing slowly (once per second): The server is turned off and is ready tobe turned on. You can press the power-control button to turn on the server.Lit: The server is turned on.v Ethernet activity LEDs: When any of these LEDs is lit, they indicate that theserver is transmitting to or receiving signals from the Ethernet LAN that isconnected to the Ethernet port that corresponds to that LED.v System-locator button/LED: Use this blue LED to visually locate the serveramong other servers. A system-locator LED is also on the rear of the server. ThisLED is used as a presence detection button as well. You can use IBM SystemsDirector or IMM2 web interface to light this LED remotely. This LED is controlledby the IMM2. The locator button is pressed to visually locate the server amongthe others servers.v Check log LED: When this yellow LED is lit, it indicates that a system error hasoccurred. Check the error log for additional information. See the ProblemDetermination and Service Guide on the System x Documentation CD for moreinformation about error logs.v System-error LED: When this yellow LED is lit, it indicates that a system errorhas occurred. A system-error LED is also on the rear of the server. An LED onthe light path diagnostics panel on the operator information panel or on thesystem board is also lit to help isolate the error. This LED is controlled by theIMM2.Light path diagnostics panelThe light path diagnostics panel is located on the top of the operator informationpanel. For additional information about the LEDs on the light path diagnostics panel,see “Light path diagnostics LEDs” on page 17.Note: The system service label inside the server cover also provides informationabout the location of the light path diagnostics LEDs.To access the light path diagnostics panel, press the blue release latch on theoperator information panel. Pull forward on the panel until the hinge of the operatorinformation panel is free of the server chassis. Then pull down on the panel, so thatyou can view the light path diagnostics panel information.Chapter 1. The System x3550 M4 server 15