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Copying Files through Windows Explorer

  Asked By: Aurelio    Date: Mar 31    Category: Sharepoint    Views: 7491

This is on the topic of large files...

My portal is configured to accept files up to 500 MB. I have a document
library that contains files from a few MB up to 250 MB. I am trying to
copy those files from the server to the file system.

If I use IE I can successfully and reasonably quickly download the file
to my local desktop and everything works as expected. If I use Windows
Explorer and attempt to copy the file to my desktop the entire system
seizes for several min then starts to copy. After a few moments of the
flying pages on the Copying File window I receive the following error:

Error Copying File or Folder
Cannot copy <filename>: Cannot read from the source file or disk.

Does anyone know what is different between these two methods?

I am assuming IIS has nothing to do with this since I am using Windows
Explorer and that the IIS timeout is not part of the problem. Is there
a timeout in SQL somewhere and why does it upload without a glitch but
downloads are problematic?

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6 Answers Found

 
Answer #1    Answered By: Gopal Jamakhandi     Answered On: Mar 31

Also I have a file that is just under 48 MB and it downloads just fine.
I have another one that is 55 MB and it fails. It appears that there is
a 50 MB barrier somewhere.

 
Answer #2    Answered By: Chantal Rosa     Answered On: Mar 31

IIS is still a part of the equasion. It's WEBDAV calls that windows  explorer is
using. Look for the web client service. You did check the virtual server
setting, right?

 
Answer #3    Answered By: Kyla Eckert     Answered On: Mar 31

I had bumped up the virtual servers connection timeout but that did not
seem to have any affect on the problem. I also have the virtual server
set to accept files  up to 500mb in the SPS virtual server configuration
pages.

I am a little lost when it comes to WEBDAV and how it hooks into SPS.
Is there a particular place that I should look to for its interaction?

 
Answer #4    Answered By: Damon Garner     Answered On: Mar 31

This is a question I am dealing with and what a headache. I've
looked everywhere and can't find anything. Let me explain a sord of
work around.
First off the issue - If this is the same as yours I don't know.
When attempting to copy to the sharepoint sql database by way of
unc: IE \\servername\sites\site I get an error that a delayed write
failure occurred, depending on the size of the file it will either
copy anyway or it won't. Event Viewer shows Put fails and mrxdav
failures on the client. I haven't found the size limitation yet.
What I did to work around this issue is go into the client computer
(XP w/sp2) and delete the network locations and recreate them using
http://servername/sites/site instead of the unc path. Now I can go
there every time and save with no problem. However there is an
additional problem when doing it that way - there appears to be an
active x component built into office applications that allow you to
authenticate\use the sharepoint site. If you say for example open a
pdf with adobe and the goto file copy as then browse to network
places and your http://servername/sites/site it won't launch the
active x component to display the sharepoint data.

Conclusion, the way I'm doing it now is crappy for the users, so I'm
going to figure out how to sync a sharepoint document library with
an ntfs folder and hopefully that will work for now. I don't know
what the real problem is and I've spent enough time trying to figure
it out - I am NOT a developer. I hope this helps you some at least.

 
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