Earlier today on this thread I said: > It was and is my understanding that each member of a mirror > pair *must* be connected to separate SCSI I/F cards. ...... It took a couple hours for my foggy old neurons to pop up an addendum to the above: I believe that not only must each disc in a mirror pair be connected to a separate SCSI port, one of those ports CANNOT be a SCSI port on the MFIO card; i.e.: mirror discs must be connected to identical add-on SCSI I/F cards in the SPU card cage.... Ken Sletten