Technical data

Listing and Managing Server Hardware
Turning Attention Indicators (LEDs) On and Off
HP System Partitions Guide: Administration for nPartitions—rp7410
EMSP—[e-mail]
269
Turning Attention Indicators (LEDs)
On and Off
HP’s nPartition systems provide attention indicators (LEDs) to help
you to visually select and confirm which hardware you want to perform
operations on. Attention indicators are amber (orange) lights.
Table 7-1 on page 270 lists attention indicator meanings and LED states
(off, blinking, and on). These states and meanings adhere to the PCI
Hot-Plug specification.
You can control the attention indicators for various hardware
components by using the following methods:
• HP-UX Commands on page 271
This procedure (fruled -o..., fruled -f..., or rad -f...) manages attention
indicators by turning them on, off, or blinking them from HP-UX.
• Partition Manager on page 273
This procedure (Cell —> Light Cell LED menu, the I/O —> Light I/O
Chassis LED menu, or the I/O —> Light Chassis and Slot LEDs
menu) manages a hardware component’s attention indicator by
blinking it and turning it off from Partition Manager.
NOTE On HP Superdome servers, the attention indicator behavior has changed
since the original HP-UX 11i release.
Starting with the June 2001 HP-UX 11i release, the HP-UX command
and utility behavior is to blink attention indicators (rather than light
them to a steady-on state, as was the original behavior).
As a result, HP Superdome servers upgrading to the June 2001 or later
release will exhibit the new, blinking behavior (see Table 7-1 on
page 270) when cell and I/O chassis attention indicators are enabled.
In cases where some nPartitions are running the original HP-UX 11i
release and others are running a more recent release, both behaviors (the
original “steady-on” behavior and the “PCI Hot-Plug” behavior) may be
exhibited—possibly within the same server complex.
HP Restricted / DRAFT
DRAFT NOV 2001