5486IOA.fm Draft Document for Review October 18, 2004
342 IBM Eserver i5 and iSeries System Handbook
PCI IOA
When installed and configured in an OS/400 (IBM i5/OS) partition, PCI IOAs
have to be driven by a PCI IOP.
Several types of PCI adapter cards, each of which can require a specialized slot
on the system backplane, exist:
Low-speed PCI adapter cards: These cards require a PCI card slot and a
PCI controller to drive them. The PCI controller can either be included on the
backplane or as a separate PCI card that attaches to the backplane.
High-speed PCI adapter cards: These cards require a higher bandwidth
connection to the PCI controllers than low-speed PCI cards require. The PCI
controller can be included on the backplane or as a separate PCI card that
attaches to the backplane.
Low-speed/high-speed PCI adapter cards: These cards can be installed in
either a low-speed slot or high-speed slot.
PCI controller cards: PCI controller cards support a number of low-speed
PCI card slots and a number of high-speed PCI card slots depending on how
the backplane is wired. They require a controller position on the backplane.
Integrated xSeries Server for iSeries controller cards: The latest
manufacturing variance of the PCI controller cards, the Integrated xSeries
Server for iSeries, supports PCI card slots and requires a PCI controller to
drive it. The Integrated xSeries Server occupies a reserved two-slot controller
position on the backplane. One slot is for the Integrated xSeries Server
processor card, and one is for the Integrated iSeries Server Bridge card.
Refer to the system diagrams to identify which slots are supported.
PCI adapters are customer install features. Refer to Chapter 22, “Customer
Install Features” on page 459, for a list of CIF features for current iSeries models.
AIX and Linux direct attach features overview
The IBM marketing configurator supports ordering IOAs without IOPs when a
AIX or Linux partition is defined using the following feature codes:
Note: If the card is configured as a dedicated IOA in a Linux partition, then it
does not require an IOP and does not support the enhanced functions stated
previously.
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