Fujitsu PRIMEQUEST 2000 Series Administration Manual page 145

CHAPTER 5 PCI Card Hot Maintenance in SUSE Linux Enterprise Server 11
5.1 Hot Replacement of PCI Express Cards
# /sbin/lsmod | grep pciehp
Pciehp
2. If it is not installed, incorporate the PCI Hot Plug driver module into the system by executing the
modprobe command.
# /sbin/modprobe pciehp
Executing the modprobe command automatically incorporates all relevant modules into the kernel.
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
Using the PCI Express slot number confirmed in
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
Express slot is shown at <slot number> location in the directory path in the following 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
You can power on and off a PCI Express slot through an operation on the file confirmed in
power status of a PCI Express
To disable a PCI Express card and make it ready for removal, write "0" to the "power" file in the directory
corresponding to the target slot. The LED goes out.
# echo 0 > /sys/bus/pci/slots/<slot number>/power
This operation concurrently removes the device associated with the relevant adapter from the system.
To enable the card again and make it available, write "1" to the "power" file in the directory corresponding to
the disabled slot.
# echo 1 > /sys/bus/pci/slots/<slot number>/power
This operation concurrently installs the device associated with the relevant adapter on the system.
Note
After power-on, you need to confirm that the card and driver are correctly installed. The procedures vary
depending on the card and driver specifications. For the appropriate procedures, see the respective manuals.
Operation for Hot replacement of PCI Express card by Maintenance Wizard
This item describes Operation for Hot replacement of PCI Express card (PCIC) by Maintenance Wizard
Below works are performed by the field engineer in charge of your system.
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"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
slot".
Components" to check the mounting location
D.2 Correspondence between PCI Slot Mounting
"Confirming the slot number of a PCI Express
Confirming the slot number of a PCI
121
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slot", confirm
"Checking the
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