Large uploads are failing

Scn64

I run a file hosting site written in PHP. Whenever a large file (400MB+) is uploaded, the value for $_File ['size'] is returned as zero and the file fails to upload. I checked out the error code that accompanies this and it is "Value 7 Failed to write file to disk". I have done a lot of "playing around" with php.ini settings, specifically upload_max_filesize, post_max_size, and memory_limit, but none of the combinations I try seem to help. Are there any other areas I should be looking that could be causing a failed write to disk? My current php.ini settings are:

upload_max_filesize = 1024M
post_max_size = 1250M
memory_limit = 300M

I have tried setting the memory_limit all the way up to 1500M and down to 128M but still no luck. max_input_time is also set to -1 so I don't think that's the problem.

NogDog

Any possibility that there is a space limit on the temporary upload directory? (Check the upload_tmp_dir setting to see what directory is being used.)

Scn64

NogDog wrote:
Any possibility that there is a space limit on the temporary upload directory? (Check the upload_tmp_dir setting to see what directory is being used.)

Right now, phpinfo() says it's set to no value. Small uploads (under 100M😎 still work so I would think there's a temporary directory somewhere that's getting used. If there's no temp directory specified, does all the data just stay in memory until it's ready to be written?

I'll try creating a temp directory and change that value in php.ini to see if it does anything.

Thanks

NogDog

I wasn't thinking of a PHP limitation, but rather an operating system limitation, such as the /tmp directory having a limited amount a space allocated to it.

Scn64

I'm able to transfer the same file to the temp directory by FTP without any problems, so it doesn't seem to be a storage limitation on the directory itself.