exif appears to be a part of the PHP core, but it must be enabled in the PHP compile directives. My guess is that Elesarr is correct, and it will be enabled as soon as the maintenance is complete. I'd double check with the phpinfo() function for you, but it is too disabled at this time
Grrrrr...... All the disabled functions are giving random warnings and errors. I can't tell which ones are disabled because of the move or not. Does anyone know if Exif functions where previously enabled before the server move?