Fujitsu PRIMEQUEST 2000 Series Administration Manual page 124

CHAPTER 4 Hot Maintenance in Red Hat Enterprise Linux 6
4.3 Hot replacement of IOU
The ¥ at the end of a line indicates that there is no line feed.
Example of descriptions in the file after editing
# PCI device 0x8086:0x1521 (igb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ¥
ATTR{address}=="00:19:99:d7:36:21", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth3"
# PCI device 0x8086:0x1521 (igb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ¥
ATTR{address}=="00:19:99:d7:36:22", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth2"
:
:
The ¥ at the end of a line indicates that there is no line feed.
b. Execute below command, reflecting the edited rules
# udevadm control --reload-rules
c. Assert uevent to target interfaces (in this case, eth2 and eth3). Note to specify the interface name
before changing at this time. For example, assert uevent with specifying eth2 when changing eth2 to
eth10.
# echo add > /sys/class/net/eth2/uevent
# echo add > /sys/class/net/eth3/uevent
Interpret properly eth2 or eth3 to appropriate name.
d. Check whether the interface name is changed to desired name.
4. Edit the saved interface configuration file.
Write a new hardware address to replace the old one. In "HWADDR," set the hardware address of the
replaced NIC in
after NIC replacement
the file contents are partly different, but the lines to be set are the same.
Example:
DEVICE=eth0
NM_CONTROLLED=no
BOOTPROTO=static
HWADDR=2c:d4:44:f1:44:d2
BROADCAST=192.168.16.255
IPADDR=192.168.16.1
NETMASK=255.255.255.0
NETWORK=192.168.16.0
ONBOOT=yes
TYPE=Ethernet
Do this editing for all the saved interfaces except for the interface with no change of hardware address.
5. Restore the saved interface configuration file to the original file.
Restore the interface configuration file saved to the save directory to the original file by executing the
following command.
# cd /etc/sysconfig/network-scripts/temp
# mv ifcfg-ethX
(following also executed for bonding configuration)
# mv ifcfg-bondX
6. Activate the replaced interface.
The method for activating a single NIC interface differs from that for activating the SLAVE interfaces
under bonding.
For a single NIC interface:
Execute the following command to activate the interface. Activate all the necessary interfaces.
# /sbin/ifup ethX
Also, if the single NIC interface has a VLAN device and the VLAN interface was temporarily removed,
restore the VLAN interface. If the priority option has changed, set it again.
TABLE 4.9 Example of entered values corresponding to the interface names before and
or TABLE 4.10 Confirmation of interface
..
..
names. Also, for SLAVE under bonding,
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