[wp]backWPup Error

1. Problem 1

ERROR: ZipArchive returns status: Seek error: Invalid argument

1. Guess 1
   On 32bit system, you can’t generate ZIP files larger than 2GB.
   (source https://bugs.php.net/bug.php?id=53587)
2. Solution 1
   Zip to TAR
3. Problem 2

ERROR: If /home/www/mchangho/wp-content/uploads/1/1065465563.pdf will be added to your backup archive, the archive will be too large for operations with this PHP Version. You might want to consider splitting the backup job in multiple jobs with less files each.