Need help with isp driver and disk arrary

Tony Maher anthony.maher at
Sun Mar 26 21:31:49 UTC 2006

Claus Guttesen wrote:
>>I am having a problem with the isp driver seeing a StorageTek disk
>>array LUNs.  I am directly attaching to the array and everything works
>>find as long as I plug into the A controller on the array.  When I
>>connect up to the B controller, I can not see any of the LUNs
>>advertised.  The QLogic firmware can see the LUNs. The only difference
>>I can see are that the LUNs start at 0 on the A side and at 3 on the B
> In 5.x (and probably still applies to 6.x) LUN's have to start at 0 in
> order to be visible. So you have to change or LUN-mask so they start
> at 0.

And in 4.x.  This behaviour is unlikely to change since the standards
only require checking for device at lun 0 (and if found then scanning
for more).
You can use camcontrol to rescan the bus (or device) to make it visible.


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