IBM manual Introducing the PC Server 704

CD-ROM Drive In-Use Light: This light indicates CD-ROM drive activity. When this light is green, power is being applied to the drive. When this light is amber, the drive is being accessed (read from or written to).

Diskette Drive In-Use Light: This green light indicates diskette-drive activity.

Power-On Light: This green light indicates that the power-on button is in the on position.

Power-Failure Light: This amber light indicates there is no alternating current (AC) present.

Cooling-Failure Light: This amber light indicates a fan failure.

Drive-Failure Light: This amber light indicates a drive failure.

Information Panel: System monitoring information will appear on this liquid crystal display (LCD) if you install a system-management program and enable the information panel using the System Configuration Utility (SCU) program.

Hard Disk Status Lights: Each of the 12 hot-swap drive bays has a set of three status lights. These status lights indicate the following:

ŸHard Disk Fault Light: When lit continuously, this amber light indicates a faulty hard disk drive.

ŸHard Disk In-Use Light: When flashing, this green light indicates that the server is writing to or reading from the hard disk. However, on disk-array models, this light is operating-system dependent.

ŸHard Disk Power-On Light: When lit continuously, this green light indicates that a drive is installed and power is present.

Chapter 1. Introducing the PC Server 704 9