Fwd: ISP driver and FreeBSD

Omer Faruk SEN omerfsen at gmail.com
Thu Dec 29 15:18:16 UTC 2011


Have done that..
#  camcontrol devlist -v

scbus0 on isp0 bus 0:
<DGC LUNZ 0531>                    at scbus0 target 0 lun 0 (pass0)
<>                                 at scbus0 target -1 lun -1 ()
scbus1 on isp1 bus 0:
<DGC LUNZ 0531>                    at scbus1 target 0 lun 0 (pass1)
<>                                 at scbus1 target -1 lun -1 ()
scbus-1 on xpt0 bus 0:
<>                                 at scbus-1 target -1 lun -1 (xpt0)


also tried

# for  i in `jot 255 1 255`
> do
> camcontrol rescan 0:0:${i}
> done

still no luck. Can we say that FreeBSD SAN Support is not mature enough?
Because I have tried IBM Storage too a few years ago and have taken nearly
same error with FreeBSD 7.2

Regards.

On Thu, Dec 29, 2011 at 4:47 PM, Matthew Jacob <mj at feral.com> wrote:

> On 12/29/2011 12:16 AM, Omer Faruk SEN wrote:
>
>> Sorry for cross posting but i thinkt this is the right place not
>> freebsd-questions.
>>
>
> Generally speaking these kinds of issues have to do with what LUNs your
> EMC is exporting and how FreeBSD configures drives.
>
> FreeBSD isn't all that smart about using REPORT LUNS to find the correct
> luns to attach, so this likely means that the EMC is exporting, say, LUN 10
> as a real volume and LUN 0 as a stub, bogus lun. FreeBsD hits lun0, it
> fails to attach, so FreeBSD stops looking.
>
> You either need to reconfigure the EMC to export something at lun0, or you
> can do this:
>
> + Find out what LUN the EMC is exporting for the data volume
> + Explicitly scan for it
>
> You do the latter by finding the bus number for whichever isp you want to
> scan (using 'camcontrol devlist -v'), and then explicitly scan for it:
> camcontrol rescan N:0:M (where N == scbus number and M is the lun).
>
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