Technical data

Online Add and Replacement (OLAR) of PCI Cards
Requirements for OLAR Operations
HP System Partitions Guide: Administration for nPartitions, rev 5.1 374
Requirements for OLAR Operations
To perform a card addition or card removal-and-replacement operation,
the following system requirements must be met:
• The add or replace operation must be supported on the system
hardware.
All HP nPartition servers support PCI card OLAR.
• The replacement PCI card must be identical to the original card.
When performing a card replacement task, you must use a
replacement card that: uses the same driver, is manufactured by the
same vendor, and is the same hardware revision as the original card
being replaced.
Use the rad -c slot command to list detailed driver, vendor, and
revision information for a card in the specified slot.
• The PCI card’s driver must support OLAR.
Some PCI card drivers do not support OLAR.
Use the rad -q command’s output to check whether an existing PCI
card’s driver is capable of being suspended and resumed for card
OLAR operations.
Both SAM and Partition Manager also indicate in the “Status”
column whether an existing PCI card’s driver supports OLAR. All
card slots except those listed as “not OLAR-able” are valid for online
PCI card add or replace tasks.
• The card’s driver must be loaded in the currently running HP-UX
kernel.
For online addition, the driver must be present in the kernel to
support the new card.
For online replacement, the replacement card must use the same
revision of the driver as the original card.
Use the SAM utility’s Kernel Configuration > Drivers area to list all
currently loaded drivers.
• The PCI slot must have firmware that supports OLAR.
On all HP nPartition servers, the I/O firmware supports OLAR.