User`s manual
CBI-tOtO
4-8 Setup
G = Toggle
FMT-This
options enables DU254 to
show
up
for SCSIfor-
mat
ON-LINE. This feature
must
be
enabled
when
using SCSIformat ON-
LINE.
U = Toggle
Default
Tape-This
option allows you to force the presence
of a tape
unit
to the operating system even if one does
not
exist. This is
needed
for some operating systems
when
the controller is connected to
devices
with
a long self test procedure after power-up. If
it
is disabled,
only units connected to the controller are seen
by
the operating system.
A
=
Autoboot
Start From
Floppy
Drive-This
option allows
you
to set
the system to boot directly from the first floppy drive; if
no
floppy drive
is present, the system will begin to boot from the first device.
N
= Write Protect from Controller
Jumper
Setting-This
option may be
used
when
jumper setting for front panel is
IN
to allow
you
to select
write protection to disk
0
and
disk 1. Default is OFF.
v = Truncate
Disk
Size for Volume
Shadowing-This
option allows
the size of the disk to
be
truncated to multiples of
126
blocks to allow
VMS
volume shadowing copy process to reach higher performance. The
message "** WARNING
**
Truncate Size
ON/OFF
will
be
toggled, Are
you
sure?" will display before truncate switch can be toggled. If this
feature is
used
on
a disk that contains valid data, the data
must
be
removed
and
later restored after turning this feature ON.
E = Eject
Disk
after
Dismount-This
option allows
you
to specify
whether
the removable disk cartridges will eject from the drive after
dismount.
L = Reserve/Release
Disk
Option-This
option is to let the MSCP
ON-LINE
exclusive use modifier to
be
operable .
. T
= Reset all Devices
Mode
to
Default-These
modes
are-disconnect,
synchronous, Prevent
Medium
Removal, Write
with
Verify,
and
Buffer
modes, etc.
Z = Reset Controller to
Default
Configuration-This
option allows the
user to set the controller to its factory default configuration. This will set
the controller to
support
four disk drives, three tape drives; disconnect,
SCSI reset, synchronous communication, buffer mode, prevent medium
removal
and
density selection enabled;
and
fast file search, write
with