Quote:
Originally Posted by
DukeNuke2
how can 2 slower boxes be faster as one faster box? are they linked to one box? or what is your plan to setup the two arrays to one or more volumes? what kind of volumemanager do you plan to use and what app is running?
They can easily be, and I work with an application in which 2 2540s are ~ 1.5 times faster than a single 6140, but as you indicated the volume manager and volume layout are key. If using ZFS it is possible to become spindle bound, rather than cache or bus bound, so the extra 8 spindles the 2 2540s give are an advantage.
What I would recommend is that you ask Sun for both from their loaner pool and do some benchmarking with your application on both an choose whichever is better for you.