Though it is more to do with SQL Storage kind of question, I have just dragged into Performance tuning section for the sake of large installation you talk with clustering. For the sake of discussion it seems better to plan ahead for the failing instances...
SQLServer-QA.net - Knowledge Sharing Network (SSQA.net)
Thu, Sep 6 2007
Filed under: Filed under: sql server, performance, analysis, high availability, ssis, security, ssas, ssms, clustering, resources