How to Manually Configure a FC Device

Language:

Become an administrator.
Copy the /kernel/drv/fp.conf file to the /etc/driver/drv/fp.conf file.
Enable manual configuration by making sure that the following line in the/etc/driver/drv/fp.conf file is uncommented.
```
manual_configuration_only=1;
```
For more information about this setting, see cfgadm_fp(1M) and fp(7d).
Reboot the system.
For each fabric-connected device to be made available, select one of the following tasks, depending on whether you are using the Solaris I/O multipathing features.
- Configuring Device Nodes Without Multipathing Enabled
- Configuring Device Nodes With Solaris Multipathing Enabled
If the original default behavior for fabric-connected devices is desired, see the next step.
Disable manual configuration by making sure that the following line in the /etc/driver/drv/fp.conf file is commented:
```
# manual_configuration_only=1;
```
Reboot the system.
```
# init 6
```

Configuring Fabric Device Nodes

After you configure the hardware in your direct-attach system or SAN, you must ensure that the systems recognize the devices. This section explains host recognition of fabric devices, also known as 24-bit FC addressing devices on the SAN. After configuring the devices, ports, and zones in your SAN, make sure that the system is aware of the devices. You can have up to 16 million fabric devices connected together on a SAN with FC support.

This section is limited to the operations required from the perspective of the Oracle Solaris OS. It does not cover other aspects, such as device availability and device-specific management. If devices are managed by other software, such as a volume manager, refer to the volume manager product documentation for additional instructions.

Ensuring That LUN Level Information Is Visible

How to Ensure LUN Level Information is Visible

Become an administrator.
Identify the LUN level information.
```
# cfgadm -al -o show_SCSI_LUN
```
If you issue the cfgadm -al -o show_SCSI_LUN controller-ID command immediately after a system boots, the output might not show the Fibre Channel Protocol (FCP) SCSI LUN level information. The information does not appear because the storage device drivers, such as the ssd and st driver, are not loaded yet on the running system.
Determine whether the drivers are loaded.
For example:
```
# modinfo | grep ssd
```
After the drivers are loaded, the LUN level information is visible in the cfgadm output.

How to Detect Visible Fabric Devices on a System

This section provides an example of the procedure for detecting fabric devices using FC host ports c0 and c1. This procedure also shows the device configuration information that is displayed with the cfgadm command.

Note - In the following examples, only failover path attachment point IDs (Ap_Ids) are listed. The Ap_Ids displayed on your system depend on your system configuration.

Become an administrator.
Display the information about the attachment points on the system.
```
# cfgadm -l
Ap_Id                Type         Receptacle   Occupant     Condition
c0                 fc-fabric      connected    unconfigured unknown
c1                 fc-private     connected    configured   unknown
```
In this example, c0 represents a fabric-connected host port, and c1 represents a private, loop-connected host port. Use the cfgadm command to manage the device configuration on fabric-connected host ports.
By default, the device configuration on private, loop-connected host ports is managed by a system running the Oracle Solaris OS.

Display information about the host ports and their attached devices.

# cfgadm -al
Ap_Id                Type      Receptacle     Occupant   Condition
c0                 fc-fabric   connected    unconfigured unknown
c0::50020f2300006077 disk      connected    unconfigured unknown
c0::50020f23000063a9 disk      connected    unconfigured unknown
c0::50020f2300005f24 disk      connected    unconfigured unknown
c0::50020f2300006107 disk      connected    unconfigured unknown
c1                 fc-private  connected    configured   unknown
c1::220203708b69c32b disk      connected    configured   unknown
c1::220203708ba7d832 disk      connected    configured   unknown
c1::220203708b8d45f2 disk      connected    configured   unknown
c1::220203708b9b20b2 disk      connected    configured   unknown

Note - The cfgadm -l command displays information about FC host ports. You can also use the cfgadm -al command to display information about FC devices. The lines that include a port world wide name (WWN) in the Ap_Id field associated with c0 represent a fabric device. Use the cfgadm configure and unconfigure commands to manage those devices and make them available to systems using the Oracle Solaris OS. The Ap_Id devices with port WWNs under c1 represent private-loop devices that are configured through the c1 host port.

Configuring Device Nodes Without Multipathing Enabled

This section describes fabric device configuration tasks on a system that does not have multipathing enabled.

The procedures in this section show how to detect fabric devices that are visible on a system and to configure and make them available to a system running the Oracle Solaris OS. The procedures in this section use specific devices as examples to illustrate how to use the cfgadm command to detect and configure fabric devices.

The device information that you supply and that is displayed by the cfgadm command depends on your system configuration.