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Network Support Encyclopedia 96-1
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imgcpy.exe
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IMGCPY.TXT
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1995-07-12
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149 lines
NOVELL TECHNICAL INFORMATION DOCUMENT
TITLE: Readme for image file copy utility
README FOR: IMGCPY.EXE
NOVELL PRODUCTS and VERSIONS:
NetWare 3.12
NetWare 4.1
ABSTRACT:
This file contains IMGCOPY.NLM. Which is a NetWare Loadable
Module that is used to copy a coredump image file residing on the
file server's local drive to the SYS: volume while the server is
running.
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DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO
NOVELL. NOVELL
MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY THIS INFORMATION.
HOWEVER, THE
INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION
ONLY. NOVELL
MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS
INFORMATION.
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ISSUE:
After directing a core memory image to a local DOS device users
are unable to copy the image while the server is running.
Use IMGCOPY.NLM to copy the core memory image from the local DOS
device to the NetWare SYS: volume after the server has been
restarted.
IMGCOPY.NLM is a NetWare Loadable Module that is used to copy a
coredump image file residing on the file server's local drive to
a network drive while the server is running. IMGCOPY reduces
file server down time by copying the image file to a network
drive as a background process, allowing the server to be used for
normal activities.
Self-Extracting File Name: imgcpy.exe
Files Included Size Date Time
..\
IMGCPY.TXT (This file)
IMGCOPY.NLM 4775 9-4-91 8:35:54 am
Installation Instructions:
IMGCOPY can either be run from a floppy drive or can be copied to
SYS:SYSTEM. After an image file has been generated and the server
brought back up, type the following at the file server console
screen*:
LOAD IMGCOPY <<S=source path> <D=destination path> <P=priority>>
NOTE: For both 3.11 and 4.10 SFT III. Load IMGCOPY in the
Mirrored Server Engine. Depending on how the parameter "MSEngine
Use Primary Server For DOS I/O" is set will determine which
machines' DOS hard drive will be used. You will need to either
set this to on or off depending on where the image to be copied
resides.
where:
SOURCE PATH Full path (including file name) of the image file
which resides on the local hard drive. If no source path is
specified, the default is C:\COREDUMP.IMG.
DESTINATION PATH The location on the SYS: volume where the
image file should be copied. This must be a complete NetWare path
specification, including volume and file names. The default
destination path is SYS:COREDUMP\COREDUMP.IMG. If the destination
path does not already exist, IMGCOPY will attempt to create that
directory on the network drive. If the file specified already
exists, it will be overwritten without any warning to the user.
PRIORITY This parameter specifies what priority level is to be
used when copying the image file. The valid options are LOW,
MEDIUM, and HIGH. If no priority is given, MEDIUM is assumed.
When running at LOW priority, IMGCOPY allows the file server to
service user requests for longer intervals. LOW priority will
exhibit the least amount of server degradation, but it will take
much longer to complete the file transfer. At MEDIUM priority,
there is no degradation of server functionality, although the
transfer time is reduced considerably. At HIGH priority, the
server will almost exclusively be processing transfer requests,
thereby making it nearly impossible for the file server to
perform other duties until the file has been transferred. This is
the fastest transfer priority available.
Note that all the above parameters are optional, and may be
specified in any order.
Once loaded, IMGCOPY will immediately begin to transfer the
image file from the server's local DOS partition, to the network
drive. A status screen will be displayed, showing the selected
source and destination files, as well as the priority level.
Also, a counter indicating the number of bytes successfully
transferred will be display. The user can toggle out of the
IMGCOPY screen by typing Alt + Esc.
When the image file has been successfully transferred, IMGCOPY
will display a message to the file server console and
automatically unload itself. File server activity will then
resume at normal operating levels. It is possible to abort the
file transfer by unloading IMGCOPY while the transfer is taking
place.
A note about Real and Protected mode:
During normal operation, the file server runs in protected mode.
However, in order to access the local DOS partition to read the
image file, the file server must switch to real mode each time a
read request is processed. While in real mode, all normal file
server activity ceases. Due to this frequent state switching,
users may experience loss of keystrokes at the file server
console if a key was pressed while the server was in real mode.
These keystrokes are stored in a real mode buffer and will not be
seen at the file server console. The higher the priority level,
the more apparent this will become. At the MEDIUM and HIGH
priority settings, users may not be able to toggle between
screens easily or type anything at the server console. This
condition will disappear as soon as the file has been transferred
and IMGCOPY has been unloaded.
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Any trademarks referenced in this document are the property of
their
respective owners. Consult your product manuals for complete
trademark
information.
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