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I cannot find the document but I believe that the newer 5709 cards have 40mb of cache on them. When they first came out they only had 16mb. I did find this nice document on 520 dasd performance. _____________________________ Bryan Dietz Aktion Associates midrange-l-bounces@xxxxxxxxxxxx wrote on 10/05/2005 12:08:30 PM: > > Larry wrote: > > > I agree with Pete and still have the question about why the > > 5703 card in the first place. Are you doing Controller level > > RAID, doing very heavy I/O or doing LPAR? If not then you > > really don't have the need for the 5703. > > It's just a signle partition machine. The 5703 was chosen over the RAID > adapter for peformance reasons. Using performance data from our existing > 170, and the results of the Workload Estimator, it was determined that the > larger cache on the 5703 would be beneficial. > > > Regards, > > John Taylor
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