Stop throwing hardware at the problem !
I've been in more than one situation where I was asked to tune a system where they had thrown a years salary in hardware at the problem already. Only to find out that the app would run just 3% faster or even 10% slower !
I'll bring some examples and will show you what I did and why. This is not just for DBA's, DEV's should also get at least one usefull thing out of this session.
I’m a SQL Server consultant based in the Netherlands. I’m a SQL Server MVP and I’m the co-founder and current chairman of the Dutch PASS Chapter and a member of the volunteer team for the Dutch SQL Saturday’s. I’ve done a whole lot of pure DBA work managing 100′s of servers and learning something new every day.
These days I spend a lot of time on just a few servers containing some large databases and the better part of the day is spent with SSIS. In both roles I’ve been using Powershell a lot. I joke sometimes that I replaced myself with a powershell script when leaving the DBA role, but these days I automate so much that I have to watch myself and not actually do just that