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## Prepare to Use the `FCode` Utility

1. Open an `xterm` or `gnome` terminal window.

   `FCode` commands produce large amounts of detailed output. The `xterm` or `gnome` terminal windows provide scroll bar functionality, which helps view such output.

2. Disable auto-boot in OBP and enter the OBP environment after a power on or reset.
3. Use the `show-devs` command to list the device paths on the server.

       {0} ok show-devs
       ...
       /pci@400/pci@1/pci@0/pci@4/scsi@0
       /pci@400/pci@2/pci@0/pci@4/scsi@0
       ...

   Note - For a server module, the device path might be `/pci@400/pci@1/pci@0/pci@2/LSI,sas@0`.

4. Use the `select` command to choose the controller where you want to create a hardware RAID volume.

       {0} ok select /pci@400/pci@2/pci@0/pci@4/scsi@0

   Instead of using the entire device path for the controller, you can use a preconfigured alias for a controller. For example:

       {0} ok select scsi0

   To view the preconfigured aliases on your server, use the `devalias` command. See Locate Device Paths.

   Display the SAS addresses of any connected drives using the `show-children` command.

##### Related Information

- `FCode` Utility Commands

- Display the `ok` Prompt

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