IBM 8862 Hardware Maintenance Manual - Page 15

Reset button: System-error LED: USB connector: Release latch: Information LED: Locator LED: SCSI activity LED: Operator information panel Press this button to reset the server and run the power-on self-test (POST). You might have to use a pen or the end of a straightened paper clip to press the button. When this LED is lit, it indicates that a system error has occurred. An LED on the diagnostic LED panel on the side of the operator information panel is also lit to help isolate the error (see "Light path diagnostics" on page 18). You can connect a USB device to this connector. Press this latch to release the operator information panel to access the light path diagnostics LED panel. When this LED is lit, it indicates that a noncritical event has occurred (see "Light path diagnostics" on page 18). Use this blue LED to visually locate the server if it is in a location with numerous other servers. A locator LED is also on the rear of the server. You can use the Management Processor Assistant (MPA) in IBM Director to cause this LED to be lit, off, or flashing (see the User's Guide on the IBM xSeries Documentation CD for more information). If the server is connected to an RXE-100 Remote Expansion Enclosure, pressing the Locate button on the enclosure causes this LED to be lit. Note: This LED flashes while the server is being turned on or restarted, and turns off when POST is complete. When this LED is lit, it indicates that there is activity on the SCSI bus. CD-ROM drive activity LED: When this LED is lit, it indicates that the CD-ROM drive is in use. Diskette drive activity LED: When this LED is lit, it indicates that the diskette drive is in use. Hard disk drive activity LED: When this LED is flashing, it indicates that the associated hard disk drive is in use. Hard disk drive status LED: When this LED is lit continuously, it indicates that the associated hard disk drive has failed. The interpretation of a flashing status LED depends on the SCSI controller that is connected to the hot-swap drive, as follows: v When the drive is connected to the integrated SCSI controller with RAID capabilities, a flashing status LED indicates that the drive is a secondary drive in a mirrored pair and the drive is being synchronized. v When the drive is connected to an optional ServeRAID™ controller, a slowly flashing (one flash per second) status LED indicates that the drive is being rebuilt. When the LED is flashing rapidly (three flashes per second), it indicates that the controller is identifying the drive. Hard disk drive filler panels: A filler panel and air baffle is used to cover empty hard disk drive bays. A filler panel and air baffle must be installed in each empty bay to ensure proper system cooling. Your server comes with five filler panels and air baffles installed, and one completely empty bay. Chapter 1. Introduction 5