[OpenIndiana-discuss] OI and WWN names?

Bill Sommerfeld sommerfeld at alum.mit.edu
Mon Oct 3 16:19:08 UTC 2011

On 10/03/11 08:52, Jeppe Toustrup wrote:
> The trailing "d0" is from the Solaris specifications of designating a
> hard drive. Hard drive names are written as "cXtXdX", which X replaced
> by numbers (0-9 or hex). The lowercase letters are short for
> Controller, Tray and Drive (or Disk?), respectively.

Not "tray".  "target".  individual disks are generally one drive per 
target (so you see cXtYd0).  A raid controller may have  multiple 
logical units distinguished by the "d" number.

with WWN-based target names, the Y is in uppercase hex (to avoid any 
ambiguity when you hit the lowercase "d'); everything else is decimal.

More information about the OpenIndiana-discuss mailing list