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Trying to copy file from vmware guest to host using shared folders

Posted on 2010-11-17
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Last Modified: 2012-05-10
I'm using vmware player and I'm trying to copy a 300 MB file from the guest to the host using folder sharing. Both guest and host are running windows 7. Vmware player has tools installed. When I try the copy on the guest machine... the "copying" dialog coomes up, and under "time remaining" and "speed" it says "calculating..." the entire time it is attempting to do the copy. After a few seconds I can see the file on the host file system and it is the full size, 300 MB, but still the "copying..." dialog is present on the guest.

The eventually (after about 5 minutes), a "Item not found" dialog shows up saying:
"Could not find this item.
This is no longer located in \\HPDESKTOP\Users\ollie. Verify the item's location and try again"

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Question by:opike
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LVL 28

Expert Comment

by:bgoering
ID: 34155290
I have seen where turning off the various TCP offload functions in the NIC configuration on the host will resolve issues like this. In particular large segment offload comes to mind.

Good Luck
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Author Comment

by:opike
ID: 34155525
I issued the following command:
 netsh int tcp set global chimney=disabled

and then tried doing the copy again and the copy just seems to hang there forever now.

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Author Comment

by:opike
ID: 34155667
Eventually I received the error message:

"There is a problem accessing \\WIN-D2SJSG6EMDD\Users

Make sure you are connected to the network and try again."

But the network appears to otherwise be fine.
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LVL 4

Expert Comment

by:denissie
ID: 34155901
Did you give VM's "shared folders" feature a try?
(https://www.vmware.com/support/ws5/doc/ws_running_shared_folders.html)
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LVL 28

Expert Comment

by:bgoering
ID: 34155906
Just go to your Network and Sharing center, then change adapter settings, then right click local area connection (or whatever your LAN adapter is called), properties, configure nic, advanced tab and set to disabled anything having to do with offload and try it again
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Accepted Solution

by:
opike earned 0 total points
ID: 34156628
I actually had the "folder sharing" in the virtual machine settings already enabled and someone else suggested that I disable it. Once I did that, I was able to successfully copy 3 of the 1GB+ files  very quickly... however after that every file I now copy only copies over at a rate of 7 KB/second and it takes forever. I tested this with a smaller file and same issue.

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Assisted Solution

by:opike
opike earned 0 total points
ID: 34157106
Well it looks like I'm not the only one who experiences these sporadic performance issues. I found this thread which talks about the same thing:
http://communities.vmware.com/thread/41676?start=0&tstart=0

In there they mentioned that performance is improved by configuring the VM to use only 1 processor. This helped me too...the file copy rate went from 7 KB/sec (basically unusable) to ~3 MB/sec (not great but tolerable).
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Author Closing Comment

by:opike
ID: 34228587
Solution was combination of disabling vmware sharing and reducing the # of processors down to 1.
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