<div>
<div class="content wysiwyg-content">
I am trying to mirror a SCSI disk. &nbsp;I need to determine the disk's UNIX device name in order to address this drive with the DD command. &nbsp;How do I make this determination? I listed the devices found in the /dev directory, but was unable to determine which device name corresponded to the hard disk. &nbsp;The closest match seemd to be /dev/rdsk/0s0 .
</div>
</div>


I am trying to mirror a SCSI disk.  I need to determine the disk's UNIX device name in order to address this drive with the DD command.  How do I make this determination? I listed the devices found in the /dev directory, but was unable to determine which device name corresponded to the hard disk.  The closest match seemd to be /dev/rdsk/0s0 .

Hard Disk Addressing

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.