Configuring FCP devices

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To configure FCP devices you must configure the IODF, define zones in the switch or fabric, control access to the LUN with LUN masking, and configure the zfcp device driver. Under z/VM®, you might also need to attach the FCP device.

Before you begin

  • A FICON® or FICON Express feature is available. You must configure the hardware as an FCP channel within your IODF.
  • The FCP channel is connected to a Fibre Channel SAN through a switched fabric connection (unless a point-to-point connection is used)
  • The target device is connected to the same Fibre Channel SAN (or through a point-to-point connection to the FCP channel).

Procedure

To access a Fibre Channel-attached SCSI device follow these configuration steps:
  1. Configure an FCP channel in the IODF of the mainframe.
  2. Configure zoning for the FCP channel to gain access to desired target ports within a SAN.
    If the FCP channel is directly attached to a target device (point-to-point connection), this step is not needed.
  3. Configure LUN masking for the FCP channel at the target device to gain access to desired LUNs.
  4. In Linux®, configure target ports and LUNs of the SCSI device at the target port for use of zfcp.

What to do next

The configuration steps are explained in more detail in the following sections.