Q-Logic 8100 SERIES manual #cat /sys/class/scsihost/hostX/state Link Up FPort

8–Configuring FCoE in a Linux Environment N_Port ID Virtualization

A QLogic 8100 Series Adapter FCoE driver—qla2xxx, latest version.

QLogic 8100 Series Adapter FCoE firmware—the FCoE firmware is bundled with the multi boot image. Use the latest version.

NOTE:

QLogic 8100 Series Adapters support a maximum of 63 virtual ports per adapter port in RHEL 5 environments. This number may be limited by the capabilities of the FCoE switch.

Creating Virtual Ports

This subsection describes how to create virtual adapter ports using the sysfs interface. For more information about using sysfs to configure FCoE drivers, refer to “Configuring Driver Parameters Using sysfs” on page 8-8.

To create a virtual adapter port, perform the following steps on the server that houses the QLogic 8100 Series Adapter:

1.In sysfs, identify the QLogic 8100 Series Adapter port entry, which typically resides in the directory /sys/class/scsi_host/hostX/. For information about determining the value of X to identify the SCSI host ID, refer to “Identifying the SCSI Host ID” on page 8-19.

2.Confirm that the link is up between the adapter port and the FCoE switch by issuing the following command:

#cat /sys/class/scsi_host/hostX/state Link Up - F_Port

3.Create a virtual port by typing the Echo command by issuing the following command:

#echo wwpn:wwnn > /sys/class/scsi_host/hostX/vport_create

In this command, wwpn and wwnn are the WWPN and WWNN of the virtual port, and X is the adapter SCSI host ID. Choose a WWPN and a WWNN that do not conflict with another virtual or physical adapter port in the SAN. For example:

#echo "2100001b320ff6c2:2000001b320ff6c2" > /sys/class/scsi_host/host6/vport_create

If the echo command succeeds, there is no acknowledgement. If the echo command fails with an invalid argument error, it is likely that there is a problem with the link between the adapter port and the FCoE switch.

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