Exchange 2010 database volume running out of disk space

So while tweaking some Zenoss settings on my Exchange server in Jackson I discovered that the db vol was 96.8% full.

So going through ADUC, under our Disabled Users OU.. sorting by the Description field which contains the time/date of disabling... I am exporting mailboxes out to .psts with fingers crossed hoping that i'll be able to free up enough space to get us out of the red.

After the new full backup job I'll post the same cmdlet results for comparison.