Technical data

Online Add and Replacement (OLAR) of PCI Cards
Overview of PCI Card Online Addition and Replacement (OLAR)
HP System Partitions Guide: Administration for nPartitions, rev 5.1 368
Overview of PCI Card Online Addition
and Replacement (OLAR)
HP-UX 11i supports online addition and replacement (OLAR) of PCI I/O
cards on HP nPartition systems. Without rebooting HP-UX running on
an nPartition, you can add or replace PCI cards whose device drivers
support OLAR.
The HP-UX PCI card OLAR features allow for:
• Adding a new PCI card without affecting other components of the
system and without requiring a system reboot.
This procedure is presented in Online Addition (OLA) for a PCI Card
on page 385.
• Replacing an existing PCI card without affecting other components
of the system and without requiring a system reboot.
This procedure is presented in Online Replacement (OLR) for a PCI
Card on page 391.
nPartition System OLAR Notes
The core I/O cards in HP nPartition servers are not supported for online
addition or replacement.
On HP rp7410 servers, two PCI card slots (chassis 0, slot 1 and chassis 1,
slot 8) are dedicated for use by a combination SCSI/LAN card. This
SCSI/LAN card is supported for online addition or replacement.
On HP rp7410 and rp8400 servers, the PCI card slot latches must be
used in conjunction with PCI card OLAR procedures when HP-UX is
running. When a card slot latch is open, the slot is powered off and the
slot is made accessible for card addition or replacement.
See the chapter nPartition System Overviews on page 31 and the section
PCI Card Slot Latches and Doorbells on page 378 for other I/O hardware
details.