Google Apps for Business News
Gmail and Drive Storage Unification
Google announced Monday 13th May 2013, Gmail and Drive storage unification that combines the 25GB for Gmail and 5GB for Drive included with Google Apps for Business into a single 30GB combined storage quota across Gmail, Drive and Google+ Photos.
This means any additional storage purchased (via existing ordering mechanisms) will be shared across Gmail, Drive and Google+ Photos.
This update is expected to roll out to Rapid Release domains starting 21st May, and to Scheduled Release domains starting 4th June. Current Google help centre articles relating to storage will be updated at that time.
This means that Gmail inboxes are no longer limited to 25GB. Each user can store up to 16TB of email by purchasing additional storage licenses. Users will see a warning that they have reached their storage limit and will have a short grace period in which they can still use Gmail normally.
Admin managed storage is shared across Gmail, Drive, and Google+ Photos as well.