Fujitsu PRIMEQUEST 2000 Series Administration Manual page 110

CHAPTER 4 PCI Card Hot Maintenance in Red Hat Enterprise Linux 6
4.6 Hot Replacement of PCI Express Cards
When a PCI Express card is replaced or removed, there must be no software using the PCI Express card.
For this reason, before replacing or removing the PCI Express card, stop the software using the PCI Express
card or make the software operations inapplicable.
Confirming the slot number of a PCI Express slot
When replacing, adding or removing a PCI Express card, you need to manipulate the power supply to the
appropriate slot, through the operating system. First, use the following procedure to obtain the slot number
from the mounting location of the PCI Express slot for the card. It will be used to manipulate the power supply.
1. Identify the mounting location of the PCI Express card.
See the figure in
(board and slot) of the PCI Express card to be replaced.
2. Obtain the slot number of the mounting location.
Check the table in
obtain the slot number that is unique in the cabinet and assigned to the confirmed mounting locations.
This slot number is the identification information for operating the slot of the PCI Express card to be
replaced.
Note
The four-digit decimal numbers shown in <Slot number> in
Locations and Slot Numbers
the zeroes in the leading digits.
Checking the power status of a PCI Express slot
- For the partition with Dynamic Reconfiguration utility installed
Execute /opt/FJSVdr-util/sbin/dr stat pcie command on the shell of OS.
After the list of the power status of PCI Express slots is shown, see the power status of the slot with the
slot number which you confirmed at "Confirming the slot number of a PCI Express slot"
Example:
# /opt/FJSVdr-util/sbin/dr stat pcie
pcie20: online
pcie21: offline
pcie22: empty
- For the partition without Dynamic Reconfiguration utility installed
Using the PCI Express slot number confirmed in
confirm that the /sys/bus/pci/ slots directory contains a directory for this slot information, which will be
referenced and otherwise used. Below, the PCI Express slot number confirmed in
number of a PCI Express slot
format, where the directory is the operational target.
/sys/bus/pci/slots/<slot number>
Confirm that the PCI Express card in the slot is enabled or disabled by displaying the "power" file
contents in this directory.
# cat /sys/bus/pci/slots/<slot number>/power
When displayed, "0" means disabled, and "1" means enabled.
Powering on and off PCI Express slots
- For the partition with Dynamic Reconfiguration utility installed
Execute /opt/FJSVdr-util/sbin/dr rm pcie<slot number> command on the shell of OS.
The PCI Express card is disabled and has become to be ready for removal. The LED goes out.
Example: Making the PCI Express slot with PCI Express slot number 20 power off
# /opt/FJSVdr-util/sbin/dr rm pcie20
This operation concurrently removes the device associated with the relevant adapter from the system.
Execute /opt/FJSVdr-util/sbin/dr add pcie<slot number> command on the shell of OS to power on the
target slot and enable the PCI Express card on the slot. The PCI Express card becomes available again.
Example:
# /opt/FJSVdr-util/sbin/dr add pcie20
"B.1 Physical Mounting Locations of
"D.2 Correspondence between PCI Slot Mounting Locations and Slot Numbers
have the leading digits filled with zeroes. The actual slot numbers do not include
is shown at <slot number> location in the directory path in the following
Components" to check the mounting location
D.2 Correspondence between PCI Slot Mounting
"Confirming the slot number of a PCI Express
86
", and
slot",
Confirming the slot
C122-E175-02EN