31 Oct
2011
31 Oct
'11
1:30 a.m.
Surely there is no sensible answer to this question, which is why netapp refuse to quantify. We know that performance will increase with increased spindle count, but that assumes certain patterns of I/O and also more importantly, that you are near the limits of performance.
Personally, I would say that unless you think there is going to be a performance problem don't worry too much about it, and if there is a performance problem, its a lot better to avoid the I/O entirely with bigger caches than it is to add more spindles into aggregates.
Regards, pdg