One of our mailbox serverts ran low on disk space on the T-Log drive. When we checked the logs, we found 48 GB in one day. A 5 minute sample of 500 logs shows the activity below. Can someone tell us what "T" is? Instructions followed to analyze T-Logs: http://blogs.msdn.com/scottos/archive/2007/07/12/rough-and-tough-guide-to-identifying-patterns-in-ese-transaction-log-files.aspx Output: 35 <prop>urn 36 font-family 39 ****************************** 41 0000000000 65535 f 47 <style>padding-left 1533 T

You need to walk through a lot of them and work out some common factors and take it from there. Things are often down to message loops for some reason, anti virus going mad, things like that. "Adoyt" wrote in message news:08b12d51-1f83-4f02-9a17-da91ae35f457... One of our mailbox serverts ran low on disk space on the T-Log drive. When we checked the logs, we found 48 GB in one day. A 5 minute sample of 500 logs shows the activity below. Can someone tell us what "T" is? Instructions followed to analyze T-Logs: http://blogs.msdn.com/scottos/archive/2007/07/12/rough-and-tough-guide-to-identifying-patterns-in-ese-transaction-log-files.aspx Output: 35 <prop>urn 36 font-family 39 ****************************** 41 0000000000 65535 f 47 <style>padding-left 1533 T Mark Arnold, Exchange MVP.

Hi Adoyt, "T", it seems the transation log, did you check the log's name. About the log growth issue, there is a good article, you could refer to below: http://blogs.technet.com/mikelag/archive/2009/07/12/troubleshooting-store-log-database-growth-issues.aspx Related kb: http://support.microsoft.com/kb/972705 Or, you could more information, we could do more research about it. Regards! gavin