IBM BladeCenter HS20 Type 8832 Maintenance And Troubleshooting Manual

Also see for eServer BladeCenter HS20 Type 8832: Setup guide Installation and user guide Problem determination and service guide

Contents

Notes:1. The operating system in the blade server must provide USB support for theblade server to recognize and use the keyboard, mouse, CD-ROM drive, anddiskette drive. The BladeCenter unit uses USB for internal communication withthese devices.2. Although the keyboard attached to the BladeCenter unit is a PS/2-stylekeyboard, communication with it is through a USB bus. When you are runningan operating system that does not have USB drivers, such as in the followinginstances, the keyboard responds very slowly.v Running the blade server integrated diagnosticsv Running a BIOS update diskette on a blade serverv Updating the diagnostics on a blade serverv Running the Broadcom firmware CD for a blade server3. If you install Microsoft Windows 2000 on the blade server while it is not thecurrent owner of the keyboard, video, and mouse, a delay of up to one minuteoccurs the first time you switch the keyboard, video, and mouse to the bladeserver. During this one-time-only delay, the blade server Device Managerenumerates the keyboard, video, and mouse and loads the device drivers. Allsubsequent switching takes place in the normal keyboard-video-mouseswitching time frame (up to 20 seconds).4. The blade-error LED, information LED, and location LED can be turned offthrough the BladeCenter management-module Web interface or the IBMDirector console. The IBM Director program is a system-management productthat comes with the BladeCenter unit.If there is no response when you press the keyboard/mouse/video select button,you can use the management-module Web interface to determine whether localcontrol has been disabled on the blade server.You can also press keyboard keys in the following sequence to switchkeyboard/mouse/video control between blade servers:NumLock NumLock blade_server_number Enterwhere blade_server_number is the two-digit number for the blade bay in whichthe blade server is installed.Power-control button: This button is behind the control panel door. Press thisbutton to manually turn the blade server on or off.Note: The power control button has effect only if local power control is enabled forthe blade server. Local power control is enabled and disabled through theBladeCenter management module Web interface.Power-on LED: This green LED indicates the power status of the blade server inthe following manner:v Flashing rapidly – The service processor on the blade server is handshaking withthe BladeCenter management module.v Flashing slowly – The blade server has power but is not turned on.v Lit continuously – The blade server has power and is turned on.Activity LED: When this green LED is lit, it indicates that there is hard-disk-drive,flash drive, or network activity.Location LED: When this blue LED is lit, it has been turned on remotely by thesystem administrator to aid in visually locating the blade server. The location LEDChapter 2. Blade server power, controls, and indicators 11