Specifications

The mscsi file also identifies the type of device, the number of
the host adapter (0 or l), the SCSI ID, and the logical unit number
(LUN). To configure a device that is not yet configured on the
system or to change other fields, use the mkdev tape or mkdev hd
commands.
The change-ha script prompts you for information when you add
a second SCSI adapter in Standard Mode. Be prepared to supply
the following information the first time that you reference the
second adapter:
❏ Interrupt vector
❏ Start I/O hexadecimal address
❏ Stop I/O hexadecimal address.
The preferred start I/O hexadecimal address for the SCSI adapter
in Standard Mode is 330 for the primary adapter and 230 for a
secondary adapter. The stop I/O hexadecimal address should
always be the start I/O address plus 2 (332 for the primary adapter
and 232 for the secondary adapter).
Note
Changes made with the change-ha script take effect only after you
relink the kernel, such as during the installation procedure when the
system is rebooted. To relink the kernal from the operating system
command line, change to the /etc/conf/c.d directory and enter
./link_unix.
The change-ha script checks the mscsi file to ensure that the
number of adapters referenced is not greater than two. If the mscsi
file is wrong, change-ha prints an error message. You will need to
edit /etc/conf/cf.d/mscsi before you can continue.
See Also
link_unix (ADM)
mkdev (ADM)
change-ha (ADM)
7-20 Installing Software Drivers for UNlX