User`s guide

Xserve Troubleshooting - 1
General Information
General Information
What’s New
Rack-Mounted Server
Xserve is designed to be mounted in a rack. Once the server is installed in the rack, you
can slide it open from the front to exchange or add parts.
For more information, see “Opening the Server” in the Take Apart chapter.
Server Identifier Light/Button
The identifier light on the server’s front panel turns on when internal sensors or a systems
administrator detects a problem with the server. (The light can also be turned on by
pressing the identifier button.) This indicator will help you locate which server in a rack
needs servicing. In addition, you can use the identifier button to initiate several firmware
commands to the system. See “Entering Firmware Boot Commands From the Front Panel”
in this chapter.
Note: A duplicate identifier light/button is on the server’s back panel.
Hot-Pluggable ATA Drives
The original Xserve and Xserve (Slot-Load) include four hard drive bays at the front of the
server; the original Xserve supports hot-pluggable Apple ATA/100 drive modules and the
Xserve (Slot Load) supports ATA/133 drive modules. The Xserve (Cluster Node) includes
just one Apple ATA/133 drive module.
In the original Xserve and Xserve (Slot Load) drive bays are numbered 1–4, beginning
with the far left bay. The bay in which a drive is installed determines its master/slave
position, thereby eliminating the need for jumpers or special drive configuration. The drive
installed in bay 1 is the master drive and should have the operating system installed on it.
In all three models, you can replace or install hard drives while the server is running; you
do not need to shut down or open the server first. A status light on the front of each drive
indicates when it is safe to remove the drive without losing data. For more information, see
“Hard Drive” in the Take Apart chapter.