It seems that this can only be detected via the use of an lert?

Is there a table that stores when the last autogrow happened on a DB?

Thanks for the replies everyone.

So once the Autogrow kicked and timed-out, would this connection not be released by SQL and all the other blocked connections then successfully processed - or...

The applications is web based (php). I have managed to stabilise the database:

The error in log file was:

Autogrow of file ** in database ** cancelled or timed out after 3344...