How to change Upload Limit ?

The maximum upload size is controlled at the server-level, not by WordPress. Here are three ways you can increase the upload limit:

1. If you can edit or override the system php.ini file, increase the maximum file and post sizes. For example, upload_max_filesize = 100M ; and post_max_size = 100M ;

2. If you cannot edit or override the system php.ini file, add php_value upload_max_filesize 100M and php_value post_max_size = 100M to your .htaccess file.

3. If neither of these work, it’s time to ask your hosting provider to increase the maximum file and post sizes on your account. Keep in mind that most decent hosting providers allow this, and If your hosting provider won’t accommodate you, perhaps it’s time to find a new hosting provider.

(in the above examples, the limit is set to 100MB)

yes php.ini if you can access root folders of linux

otherwise, that depends on your server, if you didn’t pay for more than 256 mb of ram, that will obvisouly fail

apache is very light around 2 mb as listen and open server, then, depends traffic and so..

Upload limit is in general set to 2mb in php.ini file, so if you can’t direclty change it, ask your provider yes. But often hard drive size is related to bandwith.

WordPress will take at least around 80 mb or ram on a slow traffic website but again, it’s very rough data.. depends if hosts use clever cache, ssd or not, so on..

Feel free to ask others questions with specific issues,

If you use linux, show us a memtop record or so, that will help us to see where is the issue,

Thanks,