Adding hard disks

Configuring a USB hard disk

USB hard disks look like SCSI hard disks to the kernel. They use the Sdsk device driver and are configured in a similar fashion to SCSI drives. To install and configure a USB hard disk:

As root, run shutdown(ADM) to stop the system.
Attach the USB hard disk to an available USB port and restart the system, putting it into maintenance mode.
NOTE: This is the recommended method for adding USB mass storage devices. You can hot-plug a USB hard drive, but the disk's USB device ID could change when the system is rebooted next, requiring you to modify the drive's configuration. See the usb(HW) manual page for more details.
As root, select Hard Disk from the devices listed by the Hardware/Kernel Manager, or enter the command mkdev hd. (Enter mkdev hd -u or mkdev hd -h if you require detailed usage and help information for mkdev.)
Select to add a hard disk to a USB controller.
Enter the hard disk's USB device ID.
You can determine the disk's USB device ID by running hwconfig -h and locating the hard drive's entry in the list of hardware. The id= field indicates the assigned USB device ID. (If you hot-plugged the drive, the USB device ID is provided in the kernel configuration message displayed on the console.)
Enter the hard disk's LUN. For a USB hard disk, this number is typically ``0''.
You are prompted to confirm the configuration information that you provided. If correct, select to use the information to update the USB configuration. Otherwise, start the configuration again, or exit.
If prompted to do so, relink the kernel, then reboot the system. You can defer relinking in you have other devices to configure.

After completing the USB hard disk configuration, you must run mkdev hd or the Hardware/Kernel Manager a second time to partition the disk, as described in ``Installing a hard disk''.