User`s manual
CBI-1010
verify, write protect disabled, reserve/release disabled,
and
default tape
disabled. ALWAYS use this feature before reconfiguring the board.
M
= Toggle
Density
Mode-This
option allows
you
to configure the
controller for remote density selection.
If
enabled, remote density
selection
may
take place.
If
enabled, the controller reports itself as a
'TU81'. If disabled,
it
reports itself as a
'TKSO'.
B = Toggle Buffer/Truncate
Mode
(Tape/Disk)-For
tape devices, this
option allows the controller to configure each individual tape device for
write caching. If enabled, the tape device will
send
command complete
message
and
good
status to the controller once the data as been trans-
ferred to the tape device's internal buffers. If disabled, such message
and
status will
be
sent
when
the data is actually written to the tape. For disk
devices,
you
may
toggle truncate disk size, see "V = Truncate Disk Size
for Volume Shadowing" for explanation.
W = Toggle Write
WNerify-This
option will allow the
SCSI
command
Write
with
Verify to be issued for MSCP write
with
verify modifier.
When
set to OFF (which is the default), the normal write
command
will
be
issued.
P = Prevent
Medium
Removal-This
option is for removable disk
drives only.
When
set to ON, a "Prevent
Medium
Removal" will
be
issued to a drive
when
it
is
mounted
by
VMS.
This will disable the eject
media push-button
in
front of the drive.
An
1/
Allow Medium Removal"
will
be
issued
when
the drive is dismounted
by
VMS
and
the push-
button
will be enabled. This features can
be
disabled
and
the media can
be
ejected
at
anytime.
F
= Toggle Fast File
Search-This
option allows
you
to configure the
controller for
normal
or fast file searching. The difference between
normal
and
fast file search is the type of SCSI commands
used
to find
file marks. A
normal
file search will issue iterative 'Space Record'
commands until a file
mark
is encountered, while the fast
mode
will is-
sue a single
'Space filemark' command.
VMS
may
use Fast File Search
mode
if
you
do
not
attempt
a stand-alone boot or
run
other programs
that require· the controller to keep track of the
number
of objects.
In
VMS
stand-alone boot applications, this option needs to be disabled.
When
fast file
mark
is enable, the controller's ability to keep correct position
information for the
host
is
not
possible.
Setup 4-9