HP-UX System Administrator's Guide: Configuration Management

9 Configuring Peripherals
To add peripherals to your system, consult the following documentation:
• The hardware installation document that came with the peripheral.
• For PCI OL* information, see the Interface Card OL* Support Guide. For PCI OL*
information on nPartition-able systems, see the nPartition Administrator's Guide.
PCI OL*, previously known as OLAR, is the ability to add or remove a PCI card
without needing to completely shutdown the entire system. The system hardware
combined with operating system support allows per-slot power control. Instead
of turning off the entire system, you can turn off and on power to a specific PCI
slot.
The procedures for PCI OL* can be performed through the Peripheral Devices
section of HP SMH, pdweb, or the Partition Manager for nPartition-able systems,
or through HP-UX commands, such as olrad. All are documented in the preceding
documents.
CAUTION: Before attempting these procedures, please read the documents
mentioned above. Turning off power to certain PCI slots can have disastrous effects;
for example, if the PCI slot connects to an unmirrored root or swap disk, the system
will crash. Further, the I/O card itself needs to be checked for OL* functional
compatibility as well as compatibility to the specific PCI slot; for example, you
cannot insert a 33 MHz card in a slot running a 66 MHz bus.
• For general peripherals, see Interface Card OL* Support Guide.
• See the HP-UX 11i Release Notes for the titles of documents that may be relevant
to installing peripherals. Such documents may contain specific information on the
software driver and the device special file for communication with particular
peripherals.
For HP-UX to communicate with a new peripheral device, you may need to reconfigure
your system’s kernel to add a new driver. See “Configuring the Kernel” (page 153) for
details.
Configuring PCI Error Recovery
The PCI Error Recovery feature provides the ability to detect, isolate, and automatically
recover from a PCI error, avoiding a system crash. It is included with the HP-UX 11i
v3 operating system and is enabled by default.
To enable and disable PCI Error Recovery, see “Controlling PCI Error Recovery”
(page 134).
Configuring PCI Error Recovery 133