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BusLogicBT445S.README
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BusLogic BT-445S SCSI Adapter Device Drive
by
Tomas Hurka, Hukatronic tom@hukatronic.c
Ondrej Cada, OCSoftware ocs@earn.cvut.cz
Version 1.0 of BusLogic BT-445S SCSI Adapter Device Driver for
NEXTSTEP Release 3.2 for Intel Processors
OVERVIEW:
BusLogic BT-445S SCSI adapter device driver lets you take advantage
of the Bus Logic BT-445S VL-Bus SCSI host adapter
The driver replaces the NeXT's universal Adaptec154xDriver on
BT-445S card. Driver uses BT-445S 32-bit addressing mode, therefore
the disk performance is a little bit better on computers with more
than 16 MB RAM. The increase of performance is according to
DrivePerformance.app about 8% on 486DX2/66 with 32 MB RAM and
1.2 GB TOSHIBA MK538FB SCSI-2 drive. The driver works with BT-445S
firmware version 3.31C - we didn't have a chance to test other
versions of firmware.
WARRANTY:
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
INSTALLATION:
These instructions show you how to install the BusLogic BT-445S SCSI
adapter device driver on an Intel-based computer running NEXTSTEP
Release 3.2. The driver is distributed as file named
BusLogicBT445S.tar.Z.
1. If you received the BusLogicBT445S.tar.Z file via NeXTmail or
downloaded via FTP or another electronic source, place a copy of
the file in a location where you can access it when you log in as
root.
2. Log in as root.
Only the superuser, root, can install the device drivers.
If you're not sure how to log in as root, see your system
administrator.
3. Double-click the BusLogicBT445S.tar.Z file and uncompress and
unarchive it.
4. Double-click the BusLogicBT445S.config. It automatically launch
Configure.app and copy the driver into /NextLibary/Devices
directory.
5. Add BT-445S driver as SCSI device and configure IRQ and port
address according to setting of the card. The default setting
is the same as Adaptec setting and should be OK for most cases.
6. Save configuration and quit Configure.app.
7. Reboot computer.
Notes about hardware setting of BT-445S:
1. In order to achieve a 10MBytes/sec transfer rate, the
'Maximim Synchronous Data Rate Allowed' option must be enabled
(switch 7 -Off) and the 'Adapter Initiate Synchronous Negotiation
must be enabled (switch 6 - Off).
2. Some older SCSI drives that can only support a data rate of up to
5 MB/s may misinform the BT-445S during the negotiation that it
can transfer data above 5 MB/s. When the BT-445S is connected to
such drives, 5 MB/s option must be used (switch 7 - On) .
Otherwise, it will cause data transfer failure!
COPYING:
The BusLogic BT-445S driver for NSFIP is a freeware. This means that
the driver must be redistributed umodified and free of charge for
anybody, who is interseted in.
BUGS:
Send all bug reports and any other suggestion via e-mail to
tom@hukatronic.cz.
Before sending bug report, please, try reproduce
the bug using NeXT's Adaptec154xDriver. Also don't forget to write us
your configuration.
Release 1.0 notes
1. We have found at least one particular configuration (Gateway
4DX2/66V board, PAS-16 sound adapter, Logitech bus mouse, ATI
UltraPro graphics, SEAGATE ST3600N hard disk) where this driver
doesn't work properly. Anyway, even the NeXT's universal
Adaptec154x Driver doesn't work with the same configuration.
Should you possibly happen to have any problems, we will very
appreciate to be informed, so as to be able to fix the problems.
Tomas Hurka Ondrej Cada
Hukatronic (H.C.C.) OCSoftware
Kankovskeho 8 Pernerova 51
182 00 Praha 8 180 00 Praha 8
Czech Republic Czech Republic
e-mail: tom@hukatronic.cz e-mail: ocs@earn.cvut.cz