IBM System x3500 Installation And User Manual page 32

Note: The front bezel is not shown so that the drive bays are visible.
v Power-control button: Press this button to turn the server on and off manually.
v Hard disk drive activity LEDs: This LED is used on hot-swap SAS or SATA
v Hard disk drive status LEDs: This LED is used on hot-swap SAS or SATA hard
v DVD drive activity LED: When this LED is lit, it indicates that the DVD drive is
v DVD eject button: Press this button to release a DVD or CD from the DVD
v Light path diagnostics panel: Light path diagnostics is a system of LEDs on
v Operator information panel: This panel contains controls and LEDs that provide
v Remind button: This button places the system-error LED/check log LED on the
14
IBM System x3500 M4 Type 7383: Installation and User's Guide
hard disk drives. Each hot-swap hard disk drive has an activity LED, and when
this LED is flashing, it indicates that the drive is in use.
disk drives. When this LED is lit, it indicates that the drive has failed. If an
optional IBM ServeRAID controller is installed in the server, when this LED is
flashing slowly (one flash per second), it 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.
in use.
drive.
various external and internal components of the server. When an error occurs,
LEDs are lit throughout the server. By viewing the LEDs in a particular order, you
can often identify the source of the error. See "Light path diagnostics panel" on
page 16 for more information about the light path diagnostics.
information about the status of the server. For information about the controls and
LEDs on the operator information panel, see "Operator information panel" on
page 15.
operator information panel into Remind mode. In Remind mode, the system-error
LED flashes once every 2 seconds until the problem is corrected, the server is
restarted, or a new problem occurs.