Configuring fibre-channel I/O ports using the DS CLI

Complete this task to configure fibre-channel I/O ports using the DS command-line interface.

Before you begin, you must have the command-line interface prompt, and you must be connected to a storage unit that will be used for open systems host system storage.

In this process, you must designate the topology for the I/O port. The following three topology settings are available:

fibre channel arbitrated loop (coded as fc-al in the setioport command): Enables the SCSI ULP with a FC-AL topology. The FC-AL topology does not support PPRC path I/O operations.
SCSI-FCP (coded as scsi-fcp in the setioport command): Enables the SCSI ULP with a point-to-point or switched fabric topology. PPRC path I/O operations are enabled for this setting.
Note: Designate this topology for System i systems using i5/OS level V5R3M5 and above.
ficon (coded as ficon in the setioport command): Enables the FICON ULP with a point-to-point or switched fabric topology. PPRC path I/O operations are not supported for FICON ULP.

The storage unit supports the fibre-channel host adapter (HA) card type. For machine type 1750, one or two HA cards are installed in each of the two CEC assemblies. Use the lsioport and setioport commands to configure fibre-channel I/O ports.

Each fibre-channel HA card contains four I/O ports. The storage image microcode automatically creates one I/O port to represent each HA card I/O port. The default fibre-channel I/O port settings enable SCSI-FCP “identified” access to fixed block volumes. You might have to modify the I/O port settings to enable SCSI FC-AL access to fixed block volumes.

To configure the fibre-channel ports, perform the following steps:

View a list of fibre-channel port IDs by typing the following command format at the dscli command prompt:
```
dscli>lsioport -dev IBM.1750–75FA120 -l -type fc
```
A detailed report is displayed that lists the fibre-channel I/O ports.
Analyze the report and determine which I/O port IDs that you want to access the fixed block volumes.
Configure a minimum of four I/O ports for SCSI host I/O operations. Select ports with physical locations on different host bus adapter (HA) cards. If possible, locate the HA cards in different I/O enclosures.
Set the I/O ports that you have identified to enable the FC-AL (fibre-channel arbitrated loop), SCSI-FCP, or FICON topology. The following example shows how to enable the FC-AL topology by typing the following command format at the dscli command prompt:
Note: I/O ports are automatically set to the offline state and returned to the online state after configuration changes are applied.
```
dscli>setioport -dev IBM.1750–75FA120  -topology fc-al
 0012 0013 0112 0113 
```
Press Enter. A successful process returns a confirmation message indicating that the port IDs have been successfully configured.