View source for Box.com bulk transfer

UAB has an Enterprise contract with Box.com, which is currently in BETA. 

This page describes what we have learned about doing bulk-transfers of data. 

== Warning: size limitations ==

Box.com claims to have a 5G max filesize limit, which will be removed in 2016. 
If you need to work around this, you can use the Linux "[http://ss64.com/bash/split.html split]" utility

{| class="wikitable"
|-
| # chop file into 4G pieces <br />
split \<br />
--bytes=4000m \<br />
big_file.fastq.gz  \<br />
big_file.fastq.gz.split4g.<br />
|-
| # record checksums of original and chunks<br />
md5sum \<br />
big_file.fastq.gz \<br />
big_file.fastq.gz.split4g.* \<br />
> big_file.fastq.gz.md5
|}

== Warning: time stamps ==

When using an FTP client to transfer data up, it is easy to lose both modification and creation timestamps. In particular, many clients will (optionally) preserve modification time, but few will (optionally) preserve creation date. 

{| class="wikitable" border="1"
|-
! FTP client
! platform
! modification
! creation
|-
| SmartFTP
| GUI/Win Only/$$
| yes
| can be enabled
|-
| lftp
| cmd_line/linux/free
| yes
| no
|-
| fileZilla
| GUI/linux+win/free
| can be enabled
| no
|-
| ftp_ssl
| cmd_line/linux/free
| yes
| no
|}