Some of the suns, with the lates Solaris OS and a USB PCI card installed, can handle USB disks at USB 2.0 speeds. On some suns nothing will happen when you plug in the USB drive. Those would be the suns with older operating systems. On those machines you should mount the USB drive as: If the machine mounts the drive itself, you can just go ahead and use it. To unmount the drive again do the following: