Sun has released a SCSI patch which is highly recommended for the X1018A
card. The patch number is 104246-05.
Sun has also highly recommended the use of 32-bit mode on the X1018A SBus
card.
To set the card to 32-bit mode...
The two lines you should add to the end of /etc/system are these:
set hme:hme_64bit_enable=0
set fas:fas_enable_sbus64=0
After a reboot, these will take effect.