« Calculating the output of wide striping arrays | Main | Storwize acquires Steering Wheel Cam Society of America from 3PAR »

April 01, 2010

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Rob Peglar

Hi Marc, question for you. Are you assuming the SSD workload is 100% read? In other words, after you copy a region into SSD, that region is tagged read-only? Or do you allow writes into that region as well?

marc farley

Maybe it was clear enough in the post, but the percentage of reads in the model is 80% for the SATA tier and 50% for the SSD tier.

the storage anarchist

Marc -

Can you tell us how many nodes were used in each of the above configurations? And does every node have the same number of SSDs in each configuration?

Thanks!
Barry

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