Date: Wed, 23 Jul 2003 10:35:34 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Andrew Heybey <ath@niksun.com> Cc: scsi@freebsd.org Subject: Re: probing LUN's Message-ID: <20030723103100.E39567@root.org> In-Reply-To: <85vfttl7r9.fsf@stiegl.mj.niksun.com> References: <200307231125.h6NBPiIS038040@dt.home> <85vfttl7r9.fsf@stiegl.mj.niksun.com>
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On Wed, 23 Jul 2003, Andrew Heybey wrote:
> >>On Wed, 23 Jul 2003 21:25:44 +1000 (EST), Tony Maher <tonymaher@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...
That's true. However, if camcontrol rescan 1:0:4 works for him, then he
can try setting CAM_QUIRK_HILUNS for his device to get other luns probed
when 0 doesn't respond.
-Nate
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