They used to create a new content database each time a new site collection is created. Now when I tried to upload a picture file it says that the file cannot be uploaded and log file had nothing on about the issue.
So I checked back to the SQL server and the sql server has 0 GB left on the drive. I guess the problem is because of the numerous content database that are being created. When a user tried to upload an image file to a picture library, it canot upload. I tried to upload a text file it did upload, but a word file was not uploaded.
I would be grateful if I could get a solution to fix this problem. I tried to upload the same word file to another site application and it did upload.