The
osiop driver supports the following
flags for use in
config(1) files:
bits 0-7:
disable disconnect/reselect for the corresponding SCSI target
bits 8-15:
disable synchronous negotiation for SCSI target
bits 16:
disable DMA interrupts
“Target” is synonymous with SCSI ID number.
Note that SCSI tape drives should be allowed to perform disconnect/reselect or performance will suffer.