IBM xSeries 235, Техническое обслуживание и устранение неисправностей

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Power LED
This LED is on when the hot-plug PCI slot has power. An adapter must not
be added to or removed from the PCI slot when the power LED is on.
When this LED is off, the hot-plug PCI slot has no power applied. An
adapter can be added to or removed from the PCI slot when the power
LED is off.
See your operating-system documentation to determine if your operating
system supports hot-plug PCI adapters and, if so, how to disable the
hot-plug PCI slot.
Attention LEDs
Each hot-plug PCI slot has an attention LED that is visible from the rear of
the server and one that can be seen from inside the server. These LEDs
have the same meaning; they are duplicated to be visible from outside or
inside the server.
An attention LED flashes approximately once per second when it is on. The
meaning of the attention LEDs is defined by your operating system. See
your operating-system documentation to determine if your operating system
supports hot-plug PCI adapters and, if so, what the attention LEDs indicate.
The following table describes the adapter power and attention LEDs.
Table 4. Adapter power and attention LEDs
Power LED Attention LED Description and action
On Flashing The adapter requires attention. The slot still has power
applied. Do not remove or install an adapter in the
slot. See your operating-system documentation for
instructions.
On Off Normal operation; no intervention is required.
Off Flashing The adapter requires intervention. Power is removed
from the slot. An adapter can be removed or installed
in the slot.
Off Off Power is removed from the slot. An adapter can be
removed or installed in the slot.
Chapter 3. Diagnostics
33