Sql server 2005 log file shrinking issue.

Question

hi,
one of my production server database  log file size is increasing continuously,we can take log backup but no use,
we can change the database recovery model from  full to simple we shrink the log file, log file shrink successfully but space is not released,and we are getting the alerts continuously your physical disk is 95% like that.
here what we can do how reduced the log file size and how to control the log file size.
please give me the answer  ASAP.
Thanks,

Answer 1

Hello,
In SQL Server, log truncation occurs automatically as follows:
• Under the simple recovery model, after a checkpoint.
• Under the full recovery model or bulk-logged recovery model, after a log backup, if a checkpoint has occurred since the previous backup.
As Dan posted earlier, when we run the above code, we will get an integer value. The log_reuse_wait_desc value tells us why the transaction log space is not reused. You can refer to the article below to check the root cause. 
http://msdn.microsoft.com/en-us/library/ms345414.aspx
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support