Copying large files, fails over SMB to Windows

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Copying large files, fails over SMB to Windows

I have a windows xp machine that I use as the NAS for my home network. Windows XP SP3, and I share one folder on it, called NAS.
I connect to it from my Mac clients using SMB... everytime i copy a large file >3gb or so, the copy fails with Operation Failed message.
If I do the same file, via FTP, it works fine. so it seems like the issue is with the SMB client on Snow Leopard.
Has anyone seen anything like it ?

Posted on Jul 29, 2010 5:19 PM

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Answer 1

satcomer

Level 4

1,593 points

Jul 30, 2010 4:32 PM in response to BrzIphone

How is the PC formatted? Is is FAT or NTFS?

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Answer 2

BrzIphone Author

Level 1

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Jul 31, 2010 1:25 AM in response to satcomer

I have 2 partitions, C and D , both NTFS. the D is where the NAS share is.

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Answer 3

BrzIphone Author

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Aug 1, 2010 10:50 AM in response to BrzIphone

I did some more additional testing , 4 files
200mb
250mb
300mb
434 mb .... all MOV, imovie made files (not that it should matter)... but

1- selecting all the files and dragging to the nas share, the copy fails 20% of the way
2- selecting each file, 200, 250 went fine , the 300 went after 3 tries, and i never got the 434 to go
3 - switched to FTP, filezilla client on MAC and Filezilla Server on Windows, uploaded all files without a problem, with 2 open connections at a time

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Answer 4

BrzIphone Author

Level 1

20 points

Sep 6, 2010 7:32 AM in response to BrzIphone

SOlved!

I had to disable WRITE CACHING on the Windows XP machine. Now i can copy multiple Gb files at the same time and no issues.
You disable that by logging to the windows machine, properties on the Harddrive, and there is a Tab called Policies. Disable write cache there, reboot.

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