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# echo read_device_bus_id,write_device_bus_id,data_device_bus_id > /sys/bus/ccwgroup/drivers/qeth/group

Due to the length of this command, it has been broken into two lines.

In the following example, read_device_bus_id is 0.0.0600, write_device_bus_id is 0.0.0601, and

data_device_bus_id is 0.0.0602. The device is a z/VM virtual NIC and the IP address to be as-

signed to this interface is 192.168.70.69.

# echo 0.0.0600,0.0.0601,0.0.0602 > /sys/bus/ccwgroup/drivers/qeth/group

Next, verify that the qeth group device was created properly:

# ls /sys/bus/ccwgroup/drivers/qeth

0.0.0600 0.0.09a0 group notifier_register

You may optionally add a portname. First, you must check to see if a portname is required:

# cat /sys/bus/ccwgroup/drivers/qeth/0.0.0600/portname

no portname required

The response indicates that you do not need to provide a portname.

To add a port name, check that the devices are offline, and then run the following command:

Note

The device(s) must be offline when you add a portname.

# echo portname > /sys/bus/ccwgroup/drivers/qeth/0.0.0600/portname

Next, bring the device back online:

# echo 1 /sys/bus/ccwgroup/drivers/qeth/0.0.0600/online

Then verify the state of the device:

# cat /sys/bus/ccwgroup/drivers/qeth/0.0.0600/online1

A return value of "1" indicates that the device is online, while a return value '0' indicates that the

device is offline.

Check to see what interface name was assigned to the device:

# cat /sys/bus/ccwgroup/drivers/qeth/0.0.0600/if_name

eth1

To change the value of if_name, run the following command:

# echo new_if_name > /sys/bus/ccwgroup/drivers/qeth/0.0.0600/if_name

You may optionally set additional parameters and features, depending on the way you are set-

ting up your system and the features you require.

6.1. Adding a qeth Device

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Red Hat ENTERPRISE LINUX 5 - DEPLOYMENT Guía de instalación Pagina 223