The default size limit for files being uploaded to the NIM VM is 1Gb.  This value can be modified in the php.ini file located on the NIM VM at:

/etc/php/7.1/apache2

; Maximum allowed size for uploaded files
; http://php.net/upload-max-filesize
upload_max_filesize = 1024M

When files are uploaded to the NIM VM, via a dailies upload for example, the files are stored in a temporary location on the VM before being moved to the location defined by your NIM media path. If your studio is uploading a large amount of dailies or are uploading large files to be transcoded by the server, we recommend changing the default temporary upload location to a location on a mounted server with more space. The directive can also be found in the php.ini file at the below location.

; Temporary directory for HTTP uploaded files (will use system default if not
; specified).
; http://php.net/upload-tmp-dir
;upload_tmp_dir =

Uncomment the “upload_tmp_dir=” directive and set this value equal to a server path mounted on the NIM VM. You will want to ensure that the user apache is accessing files with has read/write permissions at this location.  The default apache user is “www-data”, however this can be changed. Please reference this Knowledge Base article for information on changing the apache user: http://nim-labs.com/run-apache-alternate-user/

Once these changes have been made you will need to restart the apache server with the following command:

sudo service apache2 restart