This method bypasses the upload_max_filesize limit in PHP because you are not using a web browser to upload the file. 2. Using the "Import from File" Fix (Alternative Import)

Don't upload via the browser. Use the "Import via File" (drag and drop into the wp-content/ai1wm-backups folder) method.

This method solves the problem permanently at its source for no cost. However, it requires access to your server's configuration files, which isn't always possible on all shared hosting plans.

The most straightforward, developer-approved fix is to use the All-in-One WP Migration Unlimited Extension. This is a paid addon provided by ServMask that removes all upload limits and provides premium support.

For 100GB, running the migration via Command Line (CLI) is 10x faster and more stable than the GUI. 5. Solution D: Increase Limits via wp-config.php

Click Restore: Instead of "Importing," you are now "Restoring" a local file, which bypasses many upload size restrictions. Method 2: Adjusting Server-Level PHP Limits

: Clear your server cache, WordPress plugin cache, and CDN (like Cloudflare) cache.

This command lists your available backups. Find your 100GB file and run: wp ai1wm import [filename.wpress] Use code with caution.

Most web hosts limit how long a single script can run (often 30 to 300 seconds). A 100GB file takes hours to process, causing the server to kill the script midway.

To get the byte value for 100GB, the calculation is 100 * 1024 * 1024 * 1024 . But the plugin often uses bitshifting. For safety, we will just set an absurdly high constant.

Locate the backups folder: Use an FTP client (like FileZilla) or your hosting File Manager to navigate to /wp-content/ai1wm-backups.

Add the following lines to the bottom of your .htaccess file in your WordPress root directory:

During a 100GB import, the plugin uses the /storage/ folder. If your main disk is almost full, it will fail. You can change this location to a larger disk by editing constants.php and redefining AI1WM_STORAGE_PATH .