You’ll often find people on support forums looking to know if their disk subsystem has been adequately configured for tehir Exchange server. Sure, we’d all love to have a disk susbsystem with arrays for OS< paging file, database log, database, database log n, database n, etc but few have the budget. But the question always remains, will my server handle the load?
Microsoft have given us a tool that will let us know if the subsystem is capable or not. You run the tool and specify a number of users to simulate. You then use your performance monitoring tools to monitor the server and the disks. Microsoft does mention that this should not be done during production operation.
There’s a 32bit and a 64bit version and it’s supported on newer version of ESE.DLL on Windows 2000 and Windows 2003. They also list newer WIndows OS platforms… I guess this means "Longhorn".