Installation guide

Error Notification
HP-UX version 11.00.03 Administering Fault Tolerant Hardware 5-33
Remote Service Network
The Remote Service Network (RSN) software running on your system collects
hardware faults and significant events. The RSN allows trained Customer
Assistance Center (CAC) personnel to analyze and correct problems remotely. For
information about configuring the RSN, see Chapter 6, “Remote Service
Network.”
Status Lights
Status lights are provided for almost all devices. Each device contains one, two, or
three status lights that identify its current operational state. The number of status
lights depends on the type of device. Status lights are red (or amber), yellow, and
green. Each combination of lights (on, off, or blinking) represents a specific state
for that device. To determine possible status conditions for a particular device, see
the HP-UX Operating System: Continuum Series 400 and 400-CO Operation and
Maintenance Guide (R025H).
For most devices, a green light indicates that the device is operating properly, a
yellow light indicates that the device is operating properly but is simplexed, and a
red (or amber) light indicates that the device (or at least one of the services on that
device, such as a faulted port on an I/O
controller) is out of service or being tested.
Testing occurs at the following times:
■ while the system is starting up (all devices are tested at this time)
■ when a device experiences an error
■ when a device is inserted into a slot
If the testing logic on a device detects a serious error, the unit is removed from
service for further testing by the system. If the problem was transient, the system
restores the device to service. Otherwise, the device remains out of service and the
red status light stays on.
NOTE
The green light on a disk drive flashes when I/O activity occurs on that
drive. This green light does not reflect any other status, and it does not
imply the disk is mirrored. On systems with a Eurologic disk enclosure,
the red light comes on when the system marks a disk as having failed;
however, this does not cause the cabinet light to come on.