I have noticed on our Exchange Server that I am getting multiple defragmentation passes (event 700 & 701, at least 3) on my public mail each night and that I don't seem there doesn't seem to be a defrag running on the private mail store.
As I recall this is a change in Exchange's behaviour (I have been cleaning out the logs as I have been having problems with the shadow copy services when running backups which seems to relate to log files sizes and needs SP1 applied to fix so only have a limited history), ironically this is why I noticed the change as I have been checking the logs each day before clearing them)
I am not getting any warning or error messages and the mail server is (so far) running OK.
It is Excahnge 2003 Standard, no service packs.
How worried should I be?