======================================================
Arcada Backup for Windows, Version 4.1

Copyright 1994, Arcada Software, Inc.
======================================================

This file contains important information that became
available after the written documentation was completed.

The following subjects are discussed:

    1.    Tape Format Incompatibilities
    2.    Installing Arcada Backup After Other Backup Programs
    3.    Installing DOS 6.x After Arcada Backup For Windows
    4.    Setup Disk Space Estimates
    5.    Compressed Drives
    6.    Exabyte 2MB High-Speed Controller DMA Conflict
    7.    Video/DMA Conflict Problems
    8.    Laptop/Notebook Video Conflicts
    9.    Laptop Power Management Conflicts
    10.   Hardware Compression Not Supported
    11.   Tape Despooling
    12.   Installing With Third-Party Windows Shells
    13.   Parallel Port Drive Configuration
    14.   Maximum Parallel Port Cable Length
    15.   IRQ Conflicts
    16.   Potential Conflict with Screen Savers
    17.   Encrypted Backup Sets
    18.   NetWare Files With an Execute Only (X) Attribute
    19.   Microsoft Works Thesaurus Corruption
    20.   Files Not Backed Up by Arcada Backup 
    21.   Formatting Tapes on 386 Machines
    22.   Changes to WIN.INI and SYSTEM.INI
    23.   Using Removable Media Drives
    24.   Backing Up Large Numbers of Files to AccuTrak Tapes
    25.   NetWare Server Information and AccuTrak tapes
    26.   Restoring Files with NetWare Delete Inhibit or Rename 
          Inhibit Attributes
    27.   QIC Tape Drives Supported by Arcada Backup 


1.  Tape Format Incompatibilities
=====================================================
Because of inconsistencies in the formatting process used by
different tape drives, it is highly recommended that you
format tapes in the drive where you will use them.


2.  Installing Arcada Backup After Other Backup Programs
=====================================================
You may experience difficulty running Arcada Backup 
if some device files from other backup programs are 
found in your SYSTEM.INI file. If you can't start 
Arcada Backup, try commenting the following devices out 
of your SYSTEM.INI file:

    CMSWTAPE.386
    CMSDTAPE.386
    CPVBX.386
    FASTBACK.386
    IRW286.DRV
    VIRWT.386
    VITD.386

To do this:

  1. Open the SYSTEM.INI file using a text editor.
  2. Search for the device name(s), e.g., DEVICE=CPVBX.386
  3. Type a semicolon (;) at the beginning of the line.   


3.  Installing DOS 6.x After Arcada Backup For Windows
=====================================================
DOS 6.x installs an older version of the VFINTD.386 into the
DOS directory and then modifies the SYSTEM.INI
(DEVICE=C:\DOS\VFINTD.386). If you install MS-DOS 6.x after
Arcada Backup 4.1, the next time you launch Arcada Backup you
will be sent a warning dialog. This dialog notifies you that
the VFINTD.386 is the incorrect version. If you click OK in
this dialog Arcada Backup will save the existing SYSTEM.INI as
SYSTEM.QBW and make the necessary change to the "Device=" line
in the SYSTEM.INI. You can also make the changes manually by
performing the following steps:

  1. Open the SYSTEM.INI file using a text editor.
  2. Search for the VFINTD line (DEVICE=C:\DOS\VFINTD.386).
  3. Change the line to: DEVICE = [qbwin install path]\VFINTD.386.


4.  Setup Disk Space Estimates
=====================================================
To insure that the user always has enough disk space to
install Arcada Backup, the Setup program displays the
maximum amount of space that may be required for installation.
This estimate is affected by the actual options selected
for install and also includes some space that is necessary
in order to run the setup program.


5.  Compressed Drives
=====================================================
If you are using compression software such as Stacker or
DoubleSpace, do not back up the compressed file (for example,
stacvol.* or the dblspace files), back up the logical drive
instead. Because these compressed files are typically very
large, attempting to restore may cause problems if you do not
have enough disk space to restore the compressed file.


6.  Exabyte 2MB High-Speed Controller DMA Conflict
=====================================================
Because of several potential addressing conflicts, the Exabyte 
2MB High-Speed Controller Card DMA setting should only be set 
to DMA Channel 1. 


7.  Video/DMA Conflict Problems
=====================================================
Arcada Backup uses direct memory access (DMA) channels to
read and write data. Sometimes using a tape device that is
connected to the floppy controller causes conflicts with
the Windows 3.1 video drivers.

During the compatibility test, Arcada Backup determines if
your system has a video/DMA conflict and if so, goes through
a series of tests in an effort to ensure your system runs
reliably with Arcada Backup. After each test a message will
inform you that tests are still being performed. If Arcada
Backup has attempted every test and your system will still not
work reliably, a message will inform you of the problem.

NOTE: If you experience video/DMA conflicts, try disabling the
Video Caching option (sometimes referred to as Video Shadowing)
in your CMOS setup.


8.  Laptop/Notebook Video Conflicts
=====================================================
Some laptop and notebook computers may have video conflicts
that cause the tape drive to move the tape back and forth 
excessively  ("shoe-shining"). 

If you experience this, try minimizing the Arcada Backup icon 
and making the Program Manager window active and moving it over 
the top of the icon while the program is writing to or reading 
from the tape. The Arcada Backup window will activate itself 
when the backup or restore is finished, and this action should 
speed up your session.


9. Laptop Power Management Conflicts
=====================================================
Some laptop power management systems take a "snapshot" of RAM and 
store it on the hard drive when they power down. This may create
a conflict if it occurs during a backup or restore or a tape 
formatting operation.

When using Arcada Backup, it is recommended that you turn
OFF all power management features and plug your laptop into an 
outlet rather than using the battery.


10. Hardware Compression Not Supported
=====================================================
Arcada Backup for Windows, Version 4.1, does not support
the hardware compression function found on some high-speed
controller cards.


11. Tape Despooling
=====================================================
If a tape "despools" (comes loose from the cartridge capstan,
a very rare occurrence), it may be necessary to turn the drive's
power off and on again or to turn your system off and on again 
to clear the drive.


12. Installing With Third-Party Windows Shells
=====================================================
If you use a third-party Windows shell program such as PCTools 
or Norton Desktop for Windows, Arcada Backup may
not install correctly. If you experience difficulty installing 
Arcada Backup under a shell, temporarily change your Windows shell
to the Program Manager before starting the setup program. To
change to the Program Manager, open your SYSTEM.INI file,
type a semicolon (;) in front of your current SHELL command in the
[boot] section, then type SHELL=PROGMAN.EXE on the following line.
For this change to take effect, you must restart Windows. Remove 
these changes after installation to restore your previous configuration.


13.  Parallel Port Drive Configuration
=====================================================
If your parallel port tape drive does not automatically 
configure, first ensure that the power to the drive is on. If 
it is, turn it off, then on, and try configuring it again. See 
below for more suggestions.


14. Maximum Parallel Port Cable Length
=====================================================
Your parallel port tape drive should be connected directly to 
your system's parallel port. If you use the pass-through 
connector on the drive to connect a second device such as a 
printer, the maximum cable length for both devices is 
approximately 10 feet (3 meters). 

If you have difficulty using your tape drive when a second
device is connected to the pass-through connector, disconnect 
the second device and its cable while using the tape drive.

If you experience data loss when using a printer connected to 
the pass-through connector, shorten the printer's cable if 
possible or disconnect the tape drive while printing.


15. IRQ Conflicts
=====================================================
You may experience a conflict in IRQ selection if you are 
configuring a parallel port tape drive on a system that 
includes a sound card. SoundBlaster cards and compatibles use a 
default IRQ of 7, which is also used by a printer port (LPT1).
If this conflict occurs, you can:

    *  Change your sound card's IRQ if possible. Some cards do 
       not allow this change and some games may not work 
       correctly.

    *  Check your system documentation to see if your parallel port
       can be configured to use a different interrupt.

Devices that may conflict with printer port interrupt:

       Sound Cards
       Scanner Cards
       Network Cards
       Bus Mice
       Other printer ports
       Other devices

IRQ usage can be determined by using the Microsoft Diagnostics
Program. Exit Windows and type MSD at the DOS prompt. Note that MSD
cannot always diagnose printer port IRQ conflicts. Printing does not
require a hardware interrupt and will function normally even if an
interrupt conflict exists.

Symptoms of an IRQ conflict include Arcada Backup not
finding the tape controller and network problems when
backing up to tape.

 


16. Potential Conflict with Screen Savers
=====================================================
If you attempt to use Arcada Backup while a screen 
saver is active and you get DMA or other errors, manually 
disable the screen saver before running Arcada Backup.


17.  Encrypted Backup Sets
=====================================================
Arcada Backup cannot restore backup sets encrypted by 
other backup programs. You must use the original software to
restore them.


18.  NetWare Files With an Execute Only (X) Attribute
=====================================================
NetWare files with an execute only (X) attribute will not be 
backed up, compared, or overwritten during a restore.


19.  Microsoft Works Thesaurus Corruption
=====================================================
The Microsoft Works Thesaurus requires that the archive bit (A)
be set. If you back up the Thesaurus, it may not work correctly. 
If this occurs, contact Microsoft Technical Support.


20.  Files Not Backed Up by Arcada Backup 
=====================================================
Arcada Backup does not log or back up a number of files 
to avoid potential system conflicts if they are restored. 

  Compressed Volume files:

     DBLSPACE.0??
     DRVSPACE.0??
     STACVOL.*

  Windows swap files:

     386SPART.PAR
     WIN386.SWP

  NetWare System files:

     BACKOUT.TTS
     NET$SPL.QUE
     NET$MSG.SYS
     DIRSTAMP.SYS
     NET$OBJ.SYS*
     NET$PROP.SYS*
     NET$VAL.SYS*
     NET$BIND.SYS*
     NET$BVAL.SYS*
     SYS$LOG.ERR

* These NetWare bindery files will be backed up or restored only 
if you are logged on to a server as Supervisor. See your User 
Guide for more information.

Additionally, Arcada Backup will not back up a number of 
temporary files used by the program when these files are found 
in the program's directory.


21.  Formatting Tapes on 386 Machines 
=====================================================
If you encounter difficulties formatting tapes on a slower 386 
machine or receive a message stating "The tape controller is not
responding correctly," make sure your turbo switch is on.


22.  Changes to SYSTEM.INI and WIN.INI
=====================================================
The following lines are added during installation:

WIN.INI [Extensions]
    set=[qbwin install path]\qbwin.exe^set

SYSTEM.INI [386enh]
    device=[qbwin install path]\vfintd.386

If the Load With Windows checkbox in the Backup Scheduler is 
checked, the following item is added to WIN.INI [Windows] load= 
line:

    load=[qbwin install path]\scheduler.exe

This item is removed from the load= line when the checkbox is 
unchecked and the Backup Scheduler is closed.


23.  Using Removable Media Drives
=====================================================
For your backup software to recognize and use a removable media 
drive such as a Bernoulli drive, the drive must be locked.


24.  Backing Up Large Numbers of Files to AccuTrak Tapes 
=====================================================
When using AccuTrak tapes, backing up a very large number of 
files--approximately 30,000 to an 80MB tape or 45,000 to a 
120MB tape--will result in an error. Divide the files into 
two or more backup sets and back up each set to its own tape.


25.  NetWare Server Information and AccuTrak tapes
=====================================================
Because of the proprietary format used by the tapes, NetWare 
bindery files, trustees, and extended attributes cannot 
be backed up to AccuTrak tapes.


26.  Restoring Files with NetWare Delete Inhibit or Rename 
     Inhibit Attributes 
=====================================================
During a Restore, you cannot overwrite files which have 
the NetWare Delete Inhibit (D) or Rename Inhibit (R) 
attribute set. To restore these files, you must first manually 
remove the Delete Inhibit or Rename Inhibit attribute.


27.  QIC Tape Drives Supported by Arcada Backup
=====================================================

Manufacturer                            Model Name
-----------------------------------------------------
Aiwa                                    TD-803
Aiwa                                    TD-811
Alloy Computer Products                 Retriever 250
Archive Corporation                     5240
Archive Corporation                     5580, 3580
Archive Corporation                     SuperHornet 51250/31250/11250
CMS Enhancements                        T2120AT
Colorado Memory Systems                 Jumbo 250/350	   
Colorado Memory Systems                 Tracker 250/350
Compaq Computer Corp.                   80/120
Conner                                  Tape Stor 250
Conner                                  SuperHornet Plus 51250/31250/11250
CORE International                      COREtape Light
Iomega                                  Tape250 Insider, Insider HH, PC Powered
Irwin Magnetic Systems                  A120,2040	
Irwin Magnetic Systems                  A250,2080
Irwin Magnetic Systems                  A250xxST,2120
MicroSolutions                          BACKPACK 250
Mountain Network Solutions              FileSafe 4000
Mountain Network Solutions              FileSafe 8000 Plus, Mountain 80
Summit Memory Systems, Inc.             SE250
Tallgrass Technologies                  FS120
Tecmar                                  MiniVault 120
Wangtek, Inc.                           3040/3080