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PCI Error Handling Product Note
How to Online Recover from a PCI Error
•
When the driver is suspended due to a PCI error
•
When the driver is resumed after a PCI error
•
When the resume operation fails due to a PCI error
•
When a firmware update on the card associated with the driver fails due to a PCI error
•
When an initiator ID change fails due to a PCI error
How to Online Recover from a PCI Error
The olrad command and the Attention Button can be used to attempt online recovery from a PCI error
without requiring a system reboot.
Recovery Using the olrad Command
Step 1. If the PCI slot remains powered ON, use the olrad –p OFF slot_id command to power it OFF.
Step 2. If power OFF succeeds, try a Post Replace operation at the slot using the olrad -R slot_id
command.
Step 3. If the Post Replace operation fails there is a high probability that the I/O card is bad. HP
recommends replacing the I/O card with an I/O card that has the same HP Manufacturing Part
Number and the same (or later) release version number, then repeat the Post Replace operation
described in Step 2.
Step 4. If the Post Replace operation succeeds and the I/O card/slot recovers from the error, the software
state of the components will be marked CLAIMED in the ioscan(1M) output. If you continue to
experience errors on this slot, there is a high probability that the I/O card is bad. HP recommends
replacing the I/O card with an I/O card that has the same HP Manufacturing Part Number and the
same (or later) release version number, then repeat the Post Replace operation described in Step 2.
IMPORTANT If you use Serviceguard, HP recommends the PCI Error Handling feature only be enabled if
your storage devices are configured with multiple paths and are protected by high availability
storage software such as PVLink, SecurePath, or MirrorDisk/UX. If PCI Error Handling is
enabled, but your storage devices are configured with only a single path, a system reboot may
be necessary to recover from a PCI error.
NOTE
With the PCI Error Handling solution installed, there is still a remote possibility that an MCA
or HPMC could occur during a PCI OLA operation (online addition of an I/O card). At the
beginning of a PCI OLA operation, there is a brief time during which the PCI Error Handling
infrastructure determines if the driver associated with the card is PCI Error Handling capable.
Any PCI error that occurs during this brief window of exposure can cause an MCA or HPMC.
This exposure only exists during PCI OLA operations. This exposure does not exist during PCI
OLR operations (online replacement of an I/O card), or during ordinary I/O card operations.
10
Chapter
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Equipamento de rede - HP-UX 11i v2 I/O Cards (168.17 kb)