Apple Xserve G5 - Manual (Page 17)

Chapter 1 Xserve G5 Overview 17
Note: The back panel and interior of the cluster node system are mostly the same as
those of the standard system. See “Your Server at a Glance—Back Panel” on page 12
and “Your Server at a Glance—Interior” on page 14 for detailed views.
® On/standby button and light
Press to turn on the server.
Enclosure lock and lock status light
The lock secures the enclosure and drive modules in the server. It can be locked and
unlocked with the enclosure key supplied with the server. An option in the Security pane
of System Preferences lets you inactivate a connected keyboard and mouse when the
enclosure lock is engaged. This option is turned off by default. See “Controlling Access to
a Connected Keyboard and Mouse” on page 59 for details.
When the enclosure lock is locked (the light is on), the server may not recognize
peripheral devices such as a keyboard, mouse, or storage device. Unlock the lock to use
those devices.
System identifier button and light
The system identifier light turns on if a problem is detected. It also can be turned on
manually by pressing the button. This indicator is useful for locating a particular unit in a
rack with multiple servers. A duplicate system identifier button and light are on the back
panel.
FireWire 400 port
Provides a FireWire 400 connection on the front of the server. There are also two FireWire
800 ports on the back panel. The enclosure lock must be unlocked for the server to
recognize some devices connected to this port. (See “FireWire Specifications” on page 86
for information about FireWire ports and connectors.)
G Ethernet link lights
Two lights indicate the connection status of each of the server’s two built-in Ethernet
ports.
System activity lights
Two rows of eight lights indicate system activity.The rows of lights operate
independently to show each processor’s activity. These lights also show the options in
front panel mode; see “Entering Firmware Boot Commands From the System’s Front
Panel” on page 63 for details.
Drive module and lights
The removable serial ATA (SATA) drive module contains the server software and has lights
showing operating status and disk activity. You cannot install additional drive modules in
this Xserve G5 model.