12
Chapter 1
Control and Indicators
Hot Swap Disk Drive Indicators
Each of the Hot Swap hard disk drives has two LED indicators, one for operational status and one for activity
status. Light pipes on each drive module transmit light to the front from the LEDs on the inside rear of the hot-
swap mass storage cage.
See
Figure 1-5
and
Table 1-4
.
Non-Hot Swap Disk Drive Indicators
For more information on the HP Tape Drive and its error codes, refer to the documentation provided with the
tape drive or to Hewlett-Packard’s web site, at:
http://www.hp.com
See also the
“Mass Storage Devices” on page 29
.
Rear Panel Indicators and Ports
The HP Server tc4100 rear panel includes communication ports, the AC power inlets, and the Server power
supplies.
Figure 1-7
shows the HP Server tc4100s rear panel.
Figure 1-7. HP Server tc4100 Rear Panel
Table 1-4. Hot Swap Hard Disk Drive LED Indications
Status LED
Activity Status LED
Off
: Disk not present, or not connected to the
cage
Off
: No disk activity
Green (solid):
Disk present
Green (flashing)
: Accessing disk
Amber (flashing)
: Disk failure predicted
Green (solid
for more than one minute
)
: Disk spinning
up, or “hung”
Amber (Solid )
: Disk failed
Amber (Solid on all drives)
: Missing SCSI
jumper cable OR SCSI Management Board
CAUTION
To prevent a power supply from overheating, ensure that the other power supply opening
remains covered, if a second supply is not used. If the second supply is used, keep the
cover in case you need to remove one supply for repair.
Primary
Power Supply
Secondary
Power Supply
(optional)
Blank Cover
Rear Panel
Ports
