probing LUN's

[Andrew Heybey]

>>On Wed, 23 Jul 2003 21:25:44 +1000 (EST), Tony Maher <tonymaher at optushome.com.au> said:

  tonymaher> Hello, I have been attempting to get a Hitachi SAN
  tonymaher> attached to a FreeBSD box via a Qlogic 2300 card.  The
  tonymaher> card appeared to work ok (as evidenced by verbose boot
  tonymaher> messages but no disk(s) was seen.  Finally was able to
  tonymaher> see disk with a 'camcontrol rescan 1:0:4'
  tonymaher> command. Previous 'camcontrol rescan all' and 'camcontrol
  tonymaher> rescan 1' failed to see disk.  (and obviously not seen at
  tonymaher> boot time).

  tonymaher> I did not set the SAN up but from a cursory examination:
  tonymaher> The SAN has two controllers and two 'logical' raid 5
  tonymaher> devices.  One controller is connected to a Sun box which
  tonymaher> sees c1t0d[0-3] and the 4th lun appears to be given over
  tonymaher> to the second controller for the FreeBSD box.

  tonymaher> I assume this means that CAM does not probe all LUN's if
  tonymaher> no device at LUN 0 or sys/cam/cam_xpt.c has quirk entry
  tonymaher> for device that disables LUN probing.  There is quirk for
  tonymaher> {"HITACHI", "DK31*"} but the SAN reports as Hitachi
  tonymaher> DF600F (I think, sorry its at work and I cannot access it
  tonymaher> currently) so the second case shouldn't be a problem.

You need the ispfw driver (either compiled-in or modloaded) to probe
luns beyond LUN 0 for the QLogic FC card.  If that is not your
problem, then I do not know...

andrew