Fujitsu PRIMEQUEST 2000 Series Administration Manual page 122

CHAPTER 4 PCI Card Hot Maintenance in Red Hat Enterprise Linux 6
4.6 Hot Replacement of PCI Express Cards
- 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.
- For the partition without Dynamic Reconfiguration utility installed
Confirm that the /sys/bus/pci/slots directory contains a directory for the target slot information, which
will be referenced and otherwise used. Below, the slot number confirmed in step 1 is shown at <slot
number> in the directory path in the following format, where the directory is the operational target.
/sys/bus/pci/slots/<slot number>
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. The interface (ethX) is removed at the
same time.
# echo 0 > /sys/bus/pci/slots/<slot number>/power
6. Save the interface configuration file.
Save all the interface configuration files that you checked in step 2 by executing the following command.
udevd and configuration scripts may reference the contents of files in /etc/sysconfig/network-scripts. For
this reason, create a save directory and save these files to the directory so that udevd and the
configuration scripts will not reference them.
# cd /etc/sysconfig/network-scripts
# mkdir temp
# mv ifcfg-ethX temp
(following also executed for bonding configuration)
# mv ifcfg-bondX temp
7. Physically replace the NIC by using MMB Maintenance Wizard. This step is performed by the field
engineer in charge of your system.
For details on the operation of replacement, see step 1 to 7 of 'Operation for Hot replacement of PCI
Express card by Maintenance Wizard' in
8. Delete the entries associated with the replaced NIC from the udev function rule file.
Each entry for the new NIC is automatically added to the udev function rule file, /etc/udev/rules.d/70-
persistent-net.rules, when the NIC is detected. However, the entries of a NIC are not automatically
deleted even if the NIC is removed. Leaving the entries of the removed NIC may have the following
impact.
- The interface names defined in the entries of the removed NIC cannot be assigned to the replacement
NIC or an added NIC.
For this reason, delete or comment out the entries of the removed NIC from the udev function rule file.
a. Confirm the correspondence between the interface name and hardware address in the table created
in step 2.
b. Edit the udev function rule file, /etc/udev/rules.d/70-persistent-net.rules, to delete or comment out the
entry lines of all the interface names and hardware addresses confirmed in the above step 1.
The following example shows editing of the udev function rule file.
[Example of descriptions in the file before editing]
# PCI device 0x****:0x**** (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ¥
ATTR{address}=="00:0e:0c:70:c3:38", ATTR{type}=="1", ¥
KERNEL=="eth*", NAME="eth0"
# PCI device 0x****:0x**** (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ¥
ATTR{address}=="00:0e:0c:70:c3:39", ATTR{type}=="1", ¥
KERNEL=="eth*", NAME="eth1"
:
:
The ¥ at the end of a line indicates that there is no line feed.
"4.6.2 PCI Express card replacement procedure in
98
detail".
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