pjbaratelli (6/12/2013)
Starting doing tuning today. Got a good chunk of data during heavy load.How would I go about tracking the metrics for File IO? My idea was to save Database I/O metrics over time (maybe a week or so) and chart it.
I feel noobish since it's been about 13 years since I did any server type administrative work.
Thanks for the help.
A week is FAR too long to look at IO stalls. When I am tuning I do 2-5 minute differential analysis while the server is under load. Download my Tune Like a Guru session from here: http://sqlsaturday.com/81/schedule.aspx
I hope you grabbed a long-run profiler trace to disk so you can then load it into a SQL Table or run it through Qure to do aggregate execution analysis. Many people fail to recognize that the thing(s) that are most important to tune are not necessarily the sprocs/calls that run the longest. If you can knock 25% of the duration of something that runs in 0.4 seconds but gets called 200 times per minute that could be the biggest win for the server and your app.
Best,
Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru on googles mail service