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README.12
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1994-06-30
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══════════════════════════════════════════════════
DCF/2 Release Version 1.2 Release Notes
═══════════════════════════════════════════════════
Congratulations, you have successfully installed the DCF/2 and
created your VDUs! The next step is to read through the
following release notes for the latest information about DCF/2
Version 1.2.
Before exiting the DCF/2 install program, it will ask you if
you would like to have your system restarted at this time.
You can choose to exit the program and do the restart yourself
later, if it is inconvenient for you to restart your system now.
However, the DCF/2 device statements added to your CONFIG.SYS
will not take effect nor will your VDUs be formatted until your
system has been restarted.
═══════════════════════════════════════════════════
What Happens After Your System is Restarted
═══════════════════════════════════════════════════
Once you have successfully created your VDUs and your system
has been rebooted, each of your VDUs will automatically be
formatted using the HPFS format. This will happen prior to
the time OS/2 loads the Workplace Shell.
As the format begins, follow the prompts on your screen.
The formatting process can take from a few seconds
(using the "NOF" switch) to a couple of minutes without it --
depending upon the size of the drive being formatted and the
speed of your computer.
Once format completes, you have an opportunity to enter a
volume label for the VDU. Then the DCF/2 uses OS/2's
CHKDSK /F to check the newly formatted drive. Be sure to
"press any key to continue" when prompted to do so! This
process repeats for each of the VDUs you created during
the installation program.
═══════════════════════════════════════════════════
The DCF/2 Startup -- the First Time
═══════════════════════════════════════════════════
The DCF/2 startup continues, the DCF/2 Space Manager starts
and the Workplace Shell comes up. At this point, your VDUs
are formatted, empty and available. You may now begin to
move data and user files onto them -- using the tools you
normally use to move directories and files on your system.
IMPORTANT: Be careful not to move DEVICE drivers which load
from your CONFIG.SYS at system startup to compressed drives,
which may not exist at the time OS/2 is attempting to load
these DEVICES. Instead load them from an identical subdirectory
on a physical drive.
═══════════════════════════════════════════════════
During the Normal DCF/2 Startup Process
═══════════════════════════════════════════════════
When you turn your computer on (or following a warm or cold
restart), prior to OS/2 loading the WorkPlace Shell, the VDU
Control Processes will be detached, the DCF/2 Startup will be
processed and the DCF/2 Space Manager will start. If you
need to, you can abort or interrupt the these load processes.
During normal startup, you'll hear a series of beeps -- a
single short beep, followed by a five second pause and two
more short beeps. You will also see a countdown indicator on
the screen. After the first beep (before the countdown indicator
reaches zero), depress the CONTROL key to interrupt the startup
process and exit to an OS/2 command prompt.
To abort the DCF/2 load process altogether, depress one or both
of the SHIFT key(s). (If your VDUs are not yet formatted, the
pause between the single and two beeps will be 2 1/2 instead of
5 seconds.) We also put a line of text on
your screen, instructing you to press <CONTROL> to interrupt
the load process and launch an OS/2 command processor or
<SHIFT> to abort the load altogether.
If you do not like or need the blee-beep signal during
the DCF/2 initialization phase, you can eliminate it by
adding the "/q" switch to your config.sys 'call=' statement
at the end of the file. If you prefer no messages, use
the "/Q" (big quiet) and/or the "/T:n" (n second delay) to
control the startup message display and/or the startup delay.
If you hear two long beeps during startup, this usually
indicates a problem getting lock on shared memory. Check your
logfiles and try moving your startup "CALL=" statement into
your startup.cmd file. Or, try changing the order in which
DEVICES load in your CONFIG.SYS.
═══════════════════════════════════════════════════
The Auto-Checking Feature
═══════════════════════════════════════════════════
If your system is improperly shutdown, e.g., you turn it off
without running proper OS/2 system shutdown, a system crash,
power failure, or your system experiences a trap or the system
hangs necessitating a reboot, the DCF/2 will automatically run
CHKDSK /F on each VDU during the OS/2 boot process. This
checks your VDUs for errors and makes the necessary repairs
and helps to prevent you from accessing a damaged VDU and
causing irreparable harm.
You can use CONTROL-C to terminate this process. However,
as a safeguard, the VDU remains "dirty" until you run
CHKDSK /F on it -- even if you run a proper shutdown using
the DCF/2 System Shutdown.
═══════════════════════════════════════════════════
The DCF/2 Space Manager File
═══════════════════════════════════════════════════
Each VDU has a DCF/2 Space Manager File, DCF2INFO.CMD. This
file reports the VDU's current compression ratio and available
compression ratio after recompaction. This file also reports
the total size of, amount of space in use by and space
available on both the VDU's physical host drive and for the
VDU itself.
While the DCF2INFO.CMD file provides you interesting
information about both physical and virtual space in use and
available, its real purpose is to protect you from running out
of physical space on the VDU's host drive -- a condition which
will jeopardize the integrity of the VDU.
The file may appear to be very large at times. In reality,
it occupies very little space and is stored in the VDU's Disk
Allocation Table in single-byte entries. It is updated at
regular intervals until such time as the physical space
available falls below the acceptable minimum. At that point,
it is updated every second.
To display the file, go to an OS/2 command prompt and type the
VDU drive letter followed by a colon and DCF2INFO, e.g.,
X:DCF2INFO. (If you are not in the root, use X:\DCF2INFO.)
To exit, type Control-C.
If you find you are having unexplainable space problems, review
the DCF/2 online documentation "Troubleshooting" section.
═══════════════════════════════════════════════════
DCF/2 Monitor LEDs
═══════════════════════════════════════════════════
The DCF/2 Monitor LEDs offer a visual check of VDU activity.
The LED flashes red during writes, blue during reads, green
during compression, and yellow during decompression.
If your system is a slower, older 386 processor and you have
a slow video processor, you may want to reduce the LED update
refresh rate. See the online documentation appendices for
specific command line switches.
═══════════════════════════════════════════════════
Running the DCF/2 System Shutdown
═══════════════════════════════════════════════════
DCF/2 Version 1.2 integrates the DCF/2 control process
shutdown with the standard OS/2 system shutdown. To
properly shutdown the DCF/2 (and/or OS/2) use the
right mouse button and select the SHUTDOWN menu item.
If your system fails to shutdown properly using the
normal (right-mouse button) OS/2 shutdown, check the
OS/2 DLL directory (e.g., C:\OS2\DLL) for any "*.NEW"
files. These files should be automatically renamed
during DCF/2 startup to "*.DLL". A few problems have
been reported when non-standard OS/2 command processors
are in use. Rename these files to "*.DLL".
═══════════════════════════════════════════════════
Optimizing Your VDUs
═══════════════════════════════════════════════════
This version includes an improved version of the DCF2PAKR
utility. It provides the mechanism to purge your VDUs of deleted
and lost space and then to recompress each "chunk" of data
stored in your VDU(s).
It is not a utility you will run on a daily basis -- but rather
weekly or as you feel necessary. Refer to the online help or
DCF/2 documentation for the approximate time "optimization" will
require on your particular system and specific commands to use.
═══════════════════════════════════════════════════
Getting Technical Support
═══════════════════════════════════════════════════
Technical support is available online via CompuServe
(GO OS2AVEN) in the OS/2 Vendor Forums. Select Proportional
(section 6) to post a forum message or send email to CompuServe
ID 71333,2765. Online support is also available via IBMLink,
OS2DCF2 Cforum.
Telephone support is available to registered users only. It is
available Monday through Friday by calling (717) 698-8300
between the hours of 8 a.m. and 4 p.m. Eastern Time.
Fax support is available at (303) 484-2670.
═══════════════════════════════════════════════════
DCF/2 Registration
═══════════════════════════════════════════════════
Your DCF/2 package includes a registration card. Please take
the time to fill out your registration card and return it to
us so that we can notify you when updates to the DCF/2 are
available.
If you are interested in testing future releases of the DCF/2,
please check the "Beta" test program box. All registered users
who would like to beta test are eligible to do so. Access to
CompuServe or IBMLink is required.
═══════════════════════════════════════════════════
Acknowledgments
═══════════════════════════════════════════════════
All of us at Proportional Software want to thank all of you
for your patience and understanding during the repeated delays
in shipping this version of the DCF/2.
Our special thanks go to the entire IBM team and the following
individuals have provided special support:
Mr. Colin Powell Mr. James Taylor
Mr. Felix Miro Mr. Sam Detweiler
Mr. Jack Boyce Mr. Allen Wynn
Ms. Carol Brey Mr. Charles Buck II
Mr. Orlando Portela
Ms. Robin Frank Mr. David Jackson
Mr. Toby Pennycuff Mr. & Mrs. Guy Scharf
Mr. Tim Heacox Our fellow ISV's
And, we especially thank YOU, our customers. Your faith in us
and the DCF/2, has kept us going when it would have been easier
to just plain give up!
Without your support and patience, our dream of the DCF/2 would
never have come true.
Thank you!
═══════════════════════════════════════════════════
KNOWN BUGS and PROBLEMS
═══════════════════════════════════════════════════
If you shutdown the DCF2ACP and then click on the icon of a
program on the VDU, you can cause a Trap D.
If you are using MMPM2 and your folder sounds stop working,
make sure your LIBPATH statement in the CONFIG.SYS has both
the ".;" and the "\OS2\DLL;" before the "\MMOS2\DLL;".
If your system does not reach the completed control-alt-delete
dialog box during shutdown, your VDU's should be shutdown
anyway -- this problem can occur when using MMPM2 and add-on
alarm sounds. If your VDU's don't come clean (i.e., they
autocheck upon restart, please notify us on the tech support
hotline).
If you run out of physical space on the VDU's host drive, you
may get a real scary message about missing root directory or
not being able to critical data.
Free up space on the host drive. Restart you system
and either allow the DCF/2 AutoCheck to check the drives, or
run the CHKDSK /F on each drive once your desktop comes up and
you can do so in the background while you can see the VDU LEDs
flicker.
Check your VDUs periodically (especially after a dirty
CHKDSK) for big files in the FOUND.xxx directory. The
DCF2INFO.CMD space management file could be placed in here by
CHKDSK. Delete these files.
If you don't back up your data, whether on a physical or a
DCF/2 compressed drive on a regular basis, and a drive
fails, you will be very unhappy. Solution: back up ALL of
you data -- regularly!