Fujitsu PRIMEQUEST 2000 Series Administration Manual page 97

CHAPTER 4 PCI Card Hot Maintenance in Red Hat Enterprise Linux 6
4.3 Hot replacement of IOU
replaced) on the IOU confirmed in step 1.
Example: eth0
# /sbin/ifconfig eth0 down
3. Confirm the correspondence between the interface names before and after the NIC replacement.
According to the table with the interface information about before and after the NIC replacement in steps
2 of 4.3.1 Preparation for IOU hot replacement
between the interface name and location is correct.
When switching interface name occurs before and after IOU replacement, make the correspondence
between interface name and location into the correspondence before IOU replacement by below
procedure.
Note
For the interface which name does not change before and after IOU replacement, this procedure does not
need.
Here shows the procedure to change the interface name of eth2 and eth3 (change eth2 to eth3, eth3 to
eth2) as a specific example.
a. Edit the udev function rule file, /etc/udev/rules.d/70-persistent-net.rules, modifying the target interface
name to desired name. (In this example, change eth2 to eth3, eth3 to eth2.)
Example of descriptions in the file before 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="eth2"
# PCI device 0x8086:0x1521 (igb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ¥
ATTR{address}=="00:19:99:d7:36:22", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth3"
:
:
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
replacement NIC in TABLE 6.4 Example of entered values corresponding to the interface names before
and after NIC replacement or TABLE 6.5 Confirmation of interface names. Also, for SLAVE under
and step 1 in this section, confirm that the relation
73
C122-E175-02EN