Hi Thanks for the replies.

Symm - I checked again and certainly not duplicate LUN numbers. So I don't think that was the issue but thanks anyway.

1parkplace - thanks for the info - I didn't believe what I was doing WAS playing with the targets - but evidently it must have. Certainly OPen-E support didn't see anything wrong with the config otherwise I ma sure they would have told me. But I guess there are lots of ways of doing this. I'll send you that email to get a look at the config. Cheers